How many meters of seam should a welder weld per hour?

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Standards for welding work
Components of standardization of welding work.
Standard time for welding work as the basis of the labor process
Quality control of welding work Quality control of welded parts
Visual and mechanical quality control of welded joints

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Where else are recommendations for filling out

Requirements for welds

How many joints should a welder weld per day?

Optimal speed

Instead of a conclusion

How is the main time for gas welding determined?

The main time of gas welding is for 1 linear line. m of seam is determined by the formula To=CF min, ... m of seam, min; C-time of deposition of 1 cm3 of metal (Table.

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Checking the quality of received connections

SNiP regulates the quality control of welded joints in sufficient detail. Control can be carried out by the welder himself or by workers specially designated for this. Another option is to seek help from special laboratories whose activities include carrying out such operations.

Before welding work begins, it is necessary to check whether the qualifications of the welders to whom they are entrusted correspond to the complexity of the task. The welder must present a work permit to perform specific welding work. If the purpose of the welding joint is of increased importance, then preliminary testing can be carried out on a sample of the same material and the same dimensions.

Before starting, it is also necessary to inspect the parts to be joined using the welding process. They must be made of material for which there are certification documents. Before starting welding, a thorough inspection must be carried out to identify defects on the parts to be welded. What the quality of parts should be is also indicated in regulatory documents, including SNiP.

Production control of welding work includes the following stages:

Incoming control . It applies to process documentation, the design of joints to be welded, equipment used, as well as auxiliary devices and tools.
Operational control . Welding processes and technological operations are subject to it. It is necessary to check the correctness of their implementation. Operational control also includes checking the use of equipment and compliance with safety regulations.
Acceptance control . The quality of the welds and connections made is subject to examination.

When performing input and operational types of control, it is necessary to follow the instructions set out in the regulatory document SNiP 3.01-85. For each type of control, technical standards for welding work are applied.

Quality control of welding work begins with a visual inspection. It allows you to identify all external defects visible to the naked eye. SNiP allows the use of a high-magnification magnifying glass for visual inspection. Rejecting connections whose external defects cannot be corrected or would not be economically feasible saves time and money.

According to the requirement of SNiP, all welds without exception must be subjected to visual inspection. Templates and calipers are used to measure the defect. Before starting a visual inspection, it is necessary to prepare the surface by cleaning it.

The second popular method is capillary. The advantage of this method is its versatility. SNiP allows its use to identify defects such as cracks of various sizes and pores, as well as burns and lack of penetration. This method uses a special penetrating liquid; no additional equipment is required. A combination of the capillary method with others is allowed. Special solutions or filter suspensions can be used as a penetrating liquid.

The capillary method is divided into several varieties depending on the method of obtaining information. Before penetrant testing can begin, the area being tested must be thoroughly cleaned. Various solvents are used for it. The control itself is carried out by applying special indicators to the surface of the welded joint.

The tightness test is carried out by monitoring the tightness. A properly executed connection should not allow passage of either liquid or gaseous substances. If there are through-through defects, this requirement is not met. Requirements for welds of metal structures limit the size of such a defect according to the tolerances specified in the documentation.

A common method for testing welded structures is magnetic flaw detection. The method can only be used to control ferromagnetic parts. Magnetic flaw detection helps to detect small cracks inside the weld, as well as foreign inclusions.

An information method is ultrasonic testing of welded joints of metal structures. It is suitable for testing parts made of various types of metals. The method is based on the fact that when an ultrasonic wave hits a defective area, it distorts. Ultrasonic testing requires special equipment.

The ultrasonic method can detect the presence of many different defects, ranging from pores and cracks to changes in geometric dimensions. Radiation monitoring is an informative but not safe method. It is carried out by illuminating the welded joint with X-rays and gamma rays. The equipment required to implement this method is an X-ray machine, which contains an emitter that generates X-rays.

SNiP regulates that the choice of X-ray machine depends on the thickness of the welded parts. There are also special requirements for the film used in the X-ray machine. Radiographic testing, in addition to an X-ray machine, involves the use of a flaw meter, which is a metal plate with grooves.

All mechanical and metallographic control methods are destructive types.

Requirements for welds

It is also advisable for the welder to know the requirements for welds of metal structures. This will contribute to proper quality control and adequate assessment of your work.

Welding metal structures or welding pipelines implies the absolute strength and reliability of the welds. This can only be achieved if the requirements for the mechanical properties of the joints are fully met. Based on GOSTs and rules, we have identified the following basic properties of the seam that must be observed in order to obtain a high-quality connection:

The relative elongation of the weld metal should not be less than 15-16%.
Impact strength must be at a high level. To find out this parameter, you need to conduct a test: check the reaction of the seam at the average daily temperature, and the test must be carried out for a week at the lowest temperature in your region. The minimum value of impact strength is 29 J/sq.cm.
The tensile strength of the weld should be similar to that of the metal used for welding. A lower resistance value is not allowed.
The hardness of the metal should be 350 HV for welded structural elements belonging to group 1, and 400 HV for welded elements of all other structures. These rules are regulated by SNiP II-23.

When welding metal structures, it is extremely important to pay attention to the quality of the seam itself. Previously, we talked about how the quality control of welding joints is carried out, now we will talk about the classification of seams based on their quality. So, seams come in three categories:

First category. Best quality. This category may include any type of seams that have special requirements for durability and reliability. Seams of the first category must withstand enormous loads and ensure reliable connection of complex metal structures, including industrial ones. Seams of the first category are used to weld metal frames of buildings and the hull of ships. Also in the first category are seams designed for long-term use in harsh climatic conditions. For example, in the Far North.
Second category. Medium quality. This is the most common category and includes any type of tear-resistant seam. In general, most compounds can be classified into this category. A striking example is the seams used to weld car bodies. Such seams can withstand relatively large loads, but are not designed for use in harsh conditions.
Third category. Below the average. Seams of this category are not necessarily the worst in quality, but they definitely cannot be applied to critical structures. But you can weld auxiliary metal structures, saving time and effort.

Tables

Consumption rates for welding materials are determined using a coefficient. This parameter is taken from special tables. If you need to determine the consumption of electrodes, for example, in pipe welding, then you should use the table.

To simplify calculations, you can use ready-made tables that provide ready-made data. It is much easier to use such material in production than to perform new calculations each time.

Standards for manual arc welding with coated rods are given in the tables below.

The norm is for 1 joint.

Pipe size, mm	Weight of deposited metal, g	Electrodes by groups, g					Line code
Pipe size, mm	Weight of deposited metal, g	II	III	IV	V	VI	Line code
45´3	21	37	40	42	44	47	1
45´4	28	50	54	57	61	64	2
57´3	27	57	60	54	67	60	3
57´4	36	64	69	73	77	82	4
76´5	61	108	108	123	130	137	5

The norm for 1 m of seam.

Thickness walls, mm	Weight of deposited metal, g	El-dy by groups, gr					Line code
Thickness walls, mm	Weight of deposited metal, g	II	III	IV	V	VI	Line code
3	152	269	286	305	322	340	1
4	207	368	393	417	442	466	2
5	262	465	497	527	558	590	3

Costs for forming vertical pipeline joints with beveled edges

1 m seam.

Wall thickness, mm	Weight of deposited metal, g	El-dy by groups, gr					Line code
Wall thickness, mm	Weight of deposited metal, g	II	III	IV	V	VI	Line code
3	201	366	390	415	439	464	1
4	249	453	484	514	544	574	2
5	330	600	640	680	820	760	3
6	474	861	918	975	1033	1090	4
8	651	1182	1261	1410	1419	1498	5
10	885	1607	1714	1821	1928	2035	6
12	1166	2116	2257	2398	2539	2680	7
15	1893	3436	3665	3894	4123	4352	8
16	2081	3778	4030	4281	4533	4785	9
18	2297	4532	4834	5136	5438	5740	10

1 joint.

Pipe size, mm	Weight metal, g	El-dy, Mr.					Line code
Pipe size, mm	Weight metal, g	II	III	IV	V	VI	Line code
45´3	27	60	54	58	61	64	1
45´4	34	62	66	70	74	79	2
57´3	35	64	69	73	77	82	3
57´4	44	79	85	90	95	100	4
76´5	77	140	149	158	168	177	5
89´6	130	235	251	266	282	298	6
108´6	158	287	306	325	344	363	7
133´6	195	354	377	401	425	448	8
133´8	268	483	516	548	580	613	9
159´6	234	424	453	481	509	537	10
159´8	320	580	619	658	697	735	11
219´6	323	586	625	664	703	742	12
219´8	442	803	856	910	963	1017	13
219´10	599	1088	1160	1233	1305	1376	14
219´12	787	1428	1523	1619	1714	1809	15
273´8	553	1003	1071	1138	1205	1272	16
273´10	750	1361	1452	1542	1633	1724	17
273´12	985	1788	1907	2026	2145	2265	18
273´15	1592	2890	3082	3275	3467	3660	19
325´8	659	1196	1276	1357	1436	1516	20
325´10	894	1623	1731	1839	1947	2055	21
325´12	1175	2133	2275	2417	2559	2701	22
325´15	1902	3453	3683	3913	4144	4374	23
377´8	765	1389	1482	1576	1667	1760	24
377´10	1039	1885	2010	2136	2261	2387	25
377´12	1365	2478	2643	2808	2973	3138	26
377´15	2211	4013	4281	4548	4816	5083	27
426´10	1175	2132	2274	2416	2558	2700	28
426´12	1545	2804	2990	3177	3364	3551	29
426´16	2759	4991	5324	5655	5988	6321	30
465´18	3598	6531	6966	7401	7836	8271	31

Horizontal pipeline connections with one edge beveled

1 m seam.

Wall thickness, mm	Weight metal, gr	Electrodes, g					Line code
Wall thickness, mm	Weight metal, gr	II	III	IV	V	VI	Line code
3	232	411	438	466	493	521	1
4	299	529	564	599	635	670	2
5	384	680	724	770	816	861	3
6	470	832	887	943	998	1054	4
8	832	1474	1573	1671	1769	1868	5
10	1110	1965	2096	2227	2358	2489	6
12	1562	2765	2949	3133	3318	3502	7
15	2137	3782	4034	4287	4539	4791	8
16	2348	4157	4434	4712	4989	5266	9
18	2786	4931	5260	5588	5917	6246	10

1 joint.

Pipe size, mm	Weight metal, gr	El-dy, gr					Line code
Pipe size, mm	Weight metal, gr	II	III	IV	V	VI	Line code
57´3	41	72	77	82	87	92	1
57´4	53	93	99	105	111	117	2
76´5	89	158	169	179	190	201	3
89´6	128	227	242	257	272	288	4
108´6	157	277	295	314	332	351	5
133´6	193	342	365	388	410	433	6
133´8	341	603	643	683	723	764	7
159´6	232	410	437	465	492	520	8
159´8	482	724	772	820	869	917	9
219´6	320	567	604	642	680	718	10
219´8	565	1001	1068	1135	1201	1268	11
219´10	751	1330	1419	1508	1596	1685	12
219´12	1054	1866	1991	2115	2240	2364	13
273´8	1707	1251	1335	1419	1502	1586	14
273´10	940	1664	1775	1886	1997	2108	15
273´12	1320	2336	2492	2647	2804	2959	16
273´15	1797	3181	3393	3605	3817	4029	17
325´8	843	1492	1592	1691	1790	1890	18
325´10	1121	1985	2117	2249	2382	2514	19
325´12	1575	2787	2973	3158	3344	3530	20
325´15	2147	3801	4064	4308	4562	4815	21
377´10	1302	2035	2459	2612	2766	2920	22
377´12	1829	3238	3530	3669	3885	4101	23
377´16	2741	4851	5174	5449	5822	6145	24
465´18	4015	7106	7580	8052	8526	9000	25

C19 vertical joints with beveled edges

1 m seam.

Thickness Art., mm	Weight metal, gr	El-dy, gr					Line code
Thickness Art., mm	Weight metal, gr	II	III	IV	V	VI	Line code
3	201	366	390	415	439	464	1
4	260	472	503	535	566	598	2
5	329	599	639	679	719	759	3
6	464	842	898	955	1011	1067	4
8	670	1216	1297	1378	1459	1540	5
10	974	1768	1885	2004	2121	2240	6
12	1250	2269	2420	2571	2722	2874	7
15	2010	3649	3894	4137	4380	4623	8
16	2204	4000	4266	4534	4800	5067	9
18	2615	4748	5063	5378	5695	6011	10

1 joint.

Pipe size, mm	Weight metal, gr	El-dy, gr					Line code
Pipe size, mm	Weight metal, gr	II	III	IV	V	VI	Line code
45´3	27	50	54	58	61	64	1
45´4	36	65	69	73	77	82	2
57´3	35	64	69	73	77	82	3
57´4	46	83	88	94	99	105	4
76´5	77	140	149	158	167	177	5
89´6	127	230	245	261	276	291	6
108´6	154	280	299	318	337	355	7
133´6	191	346	369	392	415	438	8
133´8	274	497	530	564	597	630	9
159´6	229	415	443	471	498	526	10
159´8	329	597	637	677	716	756	11
219´6	216	573	611	650	683	727	12
219´8	455	826	881	936	991	1046	13
219´10	659	1197	1276	1357	1436	1516	14
219´12	844	1532	1633	1735	1837	1940	15
273´8	569	1032	1101	1170	1239	1307	16
273´10	825	1497	1597	1697	1796	1897	17
273´12	1056	1917	2045	2172	2300	2428	18
273´15	1691	3069	3275	3479	3684	3880	19
325´8	678	1231	1313	1394	1476	1580	20
325´10	984	1786	1904	2024	2142	2262	21
325´12	1260	2287	2449	2592	2744	2897	22
325´15	2020	3667	3913	4158	4402	4646	23
377´10	1143	2074	2211	2351	2488	2627	24
377´12	1464	2657	2834	3011	3187	3365	25
377´15	2348	4262	4548	4832	5116	5400	26
426´10	1292	2346	2501	2659	2815	2972	27
426´12	1656	3006	3206	3407	3607	3808	28
426´16	2911	5284	5635	5989	6341	6693	29
465´18	3768	6839	7296	7750	8206	8662	30

Connections C52 of vertical pipeline joints with curved beveled edges

1 m seam.

Thickness Art., mm	Weight metal, gr	El-dy, gr					Line code
Thickness Art., mm	Weight metal, gr	II	III	IV	V	VI	Line code
10	551	1371	1462	1554	1645	1737	1
12	1164	2112	2253	2394	2534	2675	2
15	1606	2915	3109	3303	3497	3692	3
16	1755	3185	3397	3609	3821	4034	4
18	2085	3785	4037	4289	4541	4794	5
20	2409	4373	4664	4956	5247	5539	6
22	2763	5015	5349	5683	6017	6352	7

1 joint.

Pipe dimensions, mm	Weight of filled metal, g	El-dy, gr					Order number
Pipe dimensions, mm	Weight of filled metal, g	II	III	IV	V	VI	Order number
1	2	3	4	5	6	7	8
133´10	310	562	599	637	675	712	1
159´10	370	672	716	762	806	851	2
159´12	570	1035	1104	1173	1242	1311	3
219´10	514	932	994	1057	1119	1181	4
219´12	791	1436	1532	1628	1723	1819	6
219´16	1176	2134	2276	2418	2560	2703	6
273´10	642	1165	1248	1321	1398	1476	7
273´12	989	1795	1915	2035	2154	2274	8
273´15	1349	2449	2612	2775	2938	3101	9
273´20	2024	3673	3918	4163	4430	4653	10
325´10	763	1385	1477	1570	1682	1754	11
325´12	1175	2133	2276	2418	2559	2702	12
325´15	1622	2944	3140	3336	3532	3729	13
325´18	2085	3785	4037	4289	4541	4794	14
377´10	891	1618	1725	1834	1941	2080	15
377´12	1361	2471	2636	2881	2965	3130	16
377´15	1879	3411	3638	3865	4092	4320	17
377´18	2440	4429	4723	5018	5313	5609	18
426´10	1004	1823	1945	2067	2188	2310	19
426´12	1548	2809	2997	3184	3370	3558	20
426´16	2316	4204	4484	4764	5044	5325	21
426´20	3180	5772	6157	6542	6962	7312	22
465´18	3003	5450	5813	6176	6539	6903	23
465´22	3979	7222	7703	8184	8665	9153	24

C53 vertical pipeline joints with a curved bevel

1 m seam.

Thickness Art., mm	Load mass metal, gr	El-dy, gr					Order number
Thickness Art., mm	Load mass metal, gr	II	III	IV	V	VI	Order number
16	1566	2843	3032	3221	3411	3600	1
18	1958	3554	3790	4027	4264	4501	8
20	2314	4200	4480	4760	5040	5320	3
22	2681	4866	5190	5515	5839	6164	4

1 joint.

Pipe size, mm	Weight of metal, g	El-dy by groups, g					Line code
Pipe size, mm	Weight of metal, g	II	III	IV	V	VI	Line code
219´16	1053	1911	2038	2165	2292	2419	1
273´20	1940	3521	3756	3991	4226	4460	2
325´18	1958	3554	3790	4027	4264	4501	3
377´18	2281	4140	4415	4691	4967	5243	4
426´16	2070	3758	4008	4258	4509	4759	6
426´20	3052	5539	5908	6278	6647	7016	6
465´18	2822	5122	5463	5804	6146	6487	7
465´22	3855	6998	7464	7931	8397	8864	8

Connections U7 corner flanges with pipe

1 m seam.

Thickness st., m	Load mass metal, gr	El-dy by groups, gr					Lines
Thickness st., m	Load mass metal, gr	II	III	IV	V	VI	Lines
3	129	234	250	265	281	297	1
4	186	333	360	383	405	428	2
5	272	494	527	559	592	625	3
6	366	664	709	753	797	841	4
8	494	897	956	1016	1076	1136	6
10	626	1136	1212	1288	1363	1439	6
12	775	1407	1500	1594	1688	1782	7
15	941	1708	1822	1936	2049	2163	8

1 flange.

Pipe dimensions, mm	Weight metal, gr	El-dy by groups, gr					Number
Pipe dimensions, mm	Weight metal, gr	II	III	IV	V	VI	Number
25´3	10	18	20	21	22	23	1
32´3	13	23	25	27	28	30	2
38´3	15	28	30	32	33	35	3
45´4	26	48	51	64	57	60	4
57´4	33	60	64	68	72	77	5
76´5	65	118	126	133	141	149	6
89´6	102	186	198	210	223	235	7
108´6	124	225	240	255	270	285	8
133´6	152	277	296	314	333	351	9
133´8	206	375	399	424	449	474	10
159´6	182	331	354	376	398	420	11
159´8	247	448	477	507	537	567	12
219´6	252	457	487	518	548	578	13
219´8	340	617	657	699	740	781	14
219´10	430	781	833	886	937	989	15
219´12	533	967	1031	1096	1161	1225	16
273´6	313	569	608	645	683	721	17
273´8	424	769	819	871	922	974	18
273´10	536	974	1039	1104	1168	1233	19
273´12	664	1206	1286	1366	1447	1528	20
325´8	504	915	976	1037	1098	1159	21
325´10	639	1159	1237	1314	1391	1468	22
325´12	791	1436	1531	1627	1723	1818	23
325´15	944	1743	1859	1976	2091	2207	24
377´8	585	1062	1132	1203	1274	1345	25
377´10	741	1345	1435	1525	1613	1703	26
377´12	918	1666	1776	1887	1998	2109	27
377´15	1114	2022	2157	2292	2426	2560	28
426´10	837	1520	1621	1723	1823	1925	29
426´12	1037	1882	2006	2132	2258	2384	30
426´15	1260	2285	2437	2590	2741	2893	31

Angle U8 flanges with a pipe with a symmetrical bevel of one edge

1 m seam.

Thickness Art., mm	Weight metal, g	El-dy by groups, g					Order number
Thickness Art., mm	Weight metal, g	II	III	IV	V	VI	Order number
3	90	163	174	185	196	207	1
4	165	299	319	339	359	379	2
5	285	517	552	586	621	655	3
6	411	746	796	845	895	945	4
8	592	1076	1148	1220	1292	1363	5
10	770	1398	1491	1584	1677	1770	6
12	970	1761	1878	1995	2113	2230	7
15	1192	2163	2308	2452	2596	2740	8

Angular U8 flanges.

1 m seam.

Thickness Art., mm	Weight metal, gram	El-dy, gram					Order number
Thickness Art., mm	Weight metal, gram	II	III	IV	V	VI	Order number
3	91	136	146	155	164	173	1
4	148	222	237	252	266	281	2
5	218	327	349	371	392	414	3

1 pipe.

Pipe dimensions, mi	Load mass metal, gram	El-dy, gram					Order number
Pipe dimensions, mi	Load mass metal, gram	II	III	IV	V	VI	Order number
25´3	9	13	14	15	16	17	1
32´3	11	17	18	19	20	21	2
38´3	13	20	21	23	24	25	3
45´4	26	39	41	44	46	49	4
57´4	33	49	52	55	59	62	5
76´5	64	96	102	109	115	121	6

Standards for manual argon arc welding are given in the tables below.

Vertical connections of C2 pipelines

1 m seam.

Thickness Art., mm	Load mass metal, g	Welding wire, g	Tungsten non-consumable rod, g	Argon, l		Order number
Thickness Art., mm	Load mass metal, g	Welding wire, g	Tungsten non-consumable rod, g	welding	blowing	Order number
2	44	54	1,064	107	70,4	1
3	45	56	1,103	110	72,0	2

1 joint.

Pipe dimensions, mm	Load mass metal, gram	Welding wire, grams	Tungsten non-consumable rod, mg	Argon, l		Order number
Pipe dimensions, mm	Load mass metal, gram	Welding wire, grams	Tungsten non-consumable rod, mg	welding	blowing	Order number
25´2	3	4	80	7,3	4,8	1
25´3	3	4	82	7,3	4,8	2
32´2	4	5	103	9,8	6,4	3
32´3	4	5	107	10,0	6,5	4
38´2	5	6	123	12,2	8,0	5
38´3	6	7	128	14,6	9,6	6
45´2	7	8	147	17,1	11,2	7
45´3	7	8	152	17,1	11,2	8
57´3	8	10	194	19,5	12,8	9

Vertical connections C17 pipelines with beveled edges

1 m connection.

Thickness Art., mm	Weight substances, gram	Welding wire, grams	Tungsten non-melting, mg	Argon, l		Order number
Thickness Art., mm	Weight substances, gram	Welding wire, grams	Tungsten non-melting, mg	welding	blowing	Order number
3	117	145	2305	285,5	18,7	1
4	154	191	3034	375,7	18,7	2
5	190	236	3743	463,4	48,0	3
6	253	314	4984	617,3	48,0	4

1 joint.

Pipe dimensions, mm	Load mass substances, gram	Welding wire, grams	Tungsten non-melting, mg	Argon, l		Order number
Pipe dimensions, mm	Load mass substances, gram	Welding wire, grams	Tungsten non-melting, mg	welding	blowing	Order number
25´3	9	11	173	22,0	1,5	1
32´3	11	14	224	26,8	1,8	2
38´3	14	17	267	34,2	2,3	3
45´4	21	26	416	51,2	2,7	4
57´4	27	33	531	65,9	3,5	6
76´5	44	55	872	107,4	8,6	6
89´6	69	86	1366	168,4	13,4	7
108´6	84	106	1660	205,0	16,3	8
133´6	104	129	2048	253,8	20,0	9
159´6	125	155	2457	305,0	24,0	10
219´6	172	214	3394	419,7	33,0	11
273´6	215	267	4241	524,6	41,2	12

C18 vertical pipeline joints

1 m connection.

Thickness Art., mm	Weight of deposited metal, g	Welding wire, g	Tungsten non-melting, mg	Argon, l	Number
2	146	182	2896	356,2	1
3	199	247	3920	485,6	2
4	250	310	4930	610,0	3
5	330	409	6501	805,2	4
6	473	588	9338	1154,1	6

1 joint.

Pipe dimensions, mm	Weight of deposited metal, grams	Welding wire, grams	Tungsten non-melting, mg	Argon, l	Line code
Pipe dimensions, mm	Weight of deposited metal, grams	Welding wire, grams	Tungsten non-melting, mg	for welding	Line code
25´2	11	14	217	26,8	1
25´3	15	19	294	36,6	2
32´2	14	18	281	34,2	3
32´3	19	24	380	46,4	4
38´2	17	21	336	41,5	5
38´3	23	29	455	57,1	6
45´2	21	25	400	51,2	7
45´4	35	43	675	85,4	8
57´4	44	54	863	107,4	9
76´5	76	95	1515	185,4	10
89´6	130	161	2549	317,2	11
108´6	158	196	3110	385,5	12
133´6	195	242	3838	475,8	13
159´6	233	290	4604	568,5	14
219´6	322	400	6359	785,7	15
273´6	402	500	7947	980,9	16

Connections C5 of vertical pipeline joints without bevel

1 m seam.

Wall thickness, mm	Weight of deposited metal, grams	Welding wire, grams	Tungsten non-melting, mg	Argon, l	Line number
2	87	108	1714	212,3	1
3	106	132	2110	258,6	2

1 joint.

Pipe chambers, mm	Weight of deposited metal, grams	Welding wire, grams	Tungsten non-consumable rod, mg	Argon, l	Line number
25´2	6	8	129	14,6	1
25´3	8	10	180	19,5	2
32´2	9	11	166	22,0	3
32´3	10	13	233	24,4	4
38´2	10	13	233	24,4	5
38´3	12	15	278	29,3	6
45´2	12	15	278	29,3	7
46´3	14	18	331	34,2	8
57´3	18	23	422	56,1	9

Connections C19 of vertical pipeline joints with beveled edges

1 m connection.

Wall thickness, mm	Weight of deposited metal, kg	Welding wire, kg	Al-d tungsten non-consumable, g	Argon, l	Line number
2	0,146	0,182	2,896	356,2	01
3	0,199	0,247	3,920	485,6	02
4	0,259	0,322	5,122	632,0	03
5	0,329	0,409	6,501	802,8	04
6	0,463	0,575	9,141	1129,7	06

1 joint.

Pipe dimensions, mm	Weight of deposited metal, grams	Welding wire, grams	Al-d tungsten non-consumable, mg	Argon, l	Line number
25´2	11	14	217	26,8	1
25´3	15	19	294	36,6	2
32´2	14	18	281	34,2	3
32´3	19	24	380	46,4	4
38´2	17	21	336	41,5	5
38´3	23	29	455	56,1	6
45´2	20	25	400	48,8	7
45´4	35	44	537	85,4	8
57´4	45	56	896	109,8	9
76´5	76	95	1515	185,4	10
89´6	126	157	2495	307,4	11
108´6	156	192	3044	378,2	12
133´6	190	236	3757	463,6	13
159´6	229	284	4507	558,8	10
219´6	315	392	6225	768,6	14
273´6	394	489	7779	961,4	15

Connections C8 horizontal joints.
The tables above allow you to determine the consumption of electrodes per joint, meter of seam or per ton of metal. Flux consumption during automatic welding is usually 20% by weight of the welding wire consumption.

Thus, it becomes clear how to calculate the number of electrodes in each specific task.

Components of standardization of welding work.

Standards for welding work in electric arc welding include such components as time, amount of work, output, etc.

The time taken to produce a particular unit becomes the time standard when performing electric arc welding. One kilogram of metal deposited during the welding procedure, one meter of welding unit, as well as one part made during welding will be the amount of work.

Time standards are measured in minutes per meter. The production standard refers to the entire range of work completed within a certain time. This output is measured by the length of the weld (in meters) that was completed per working hour or shift.

Electricity consumption is also a very important unit, both from a technical and economic point of view. The units of measurement for electricity consumption are kilowatts per hour per kilogram of metal melted during the welding procedure.

Specifications

Standardization of assembly and welding work can be carried out competently only if technical documentation for a specific product is available. One of the most important documents is the technical specifications for the manufacture of a welded structure. This document contains a description of all stages of the welding process, requirements for them and methods of implementation. Technical conditions are carried out on the basis of current regulatory documents for this type of activity, in particular, they must be drawn up on the basis of the requirements and recommendations of SNiP.

Technical specifications are drawn up based on available drawings. They must indicate special conditions for performing the welding process, for example, increased mechanical loads.

Standard time for welding work as the basis of the labor process

Welding generators are an indispensable tool for performing high-quality manual welding with stick electrodes. The welding generator is designed in such a way that during operation the strength of the welding current remains practically unchanged, that is, it does not depend on the length of the welding arc, which can change quite slowly, depending on the speed of the welder’s hand. Only this condition will allow the arc to be constantly in a state of combustion.

Welding work requires a well-equipped workplace. A wooden tabletop is clearly not suitable for such work. In this article we will tell you how you can assemble a steel welding table with your own hands with little time and money.

This article will focus on occupational health and safety during the welding process. Let us dwell in detail on traumatic situations that can be avoided by following safety rules. We will also tell you about the labor protection rules for welders.

Optimal speed

Quantitative calculation of the rate of time spent determines the welding speed, which should ensure a high-quality seam. To a predominant extent, it depends on two values: the thickness of the product and the weld seam. You need to work so that the liquid melt does not overfill the working bath, does not form sagging, and smoothly passes to the main part of the parts.

Exceeding or decreasing the speed leads to a sharp deterioration in the quality of work, changing the welding time. At optimal speed, the seam is deep enough, but not very wide.

This guarantees compliance with quality standards. For manual arc welding, the best results are usually obtained by welding work carried out at a speed of 30-40 m/hour.

Standard values may vary depending on the specifics of the material. With semi-automatic welding, speeds are often higher. This is understandable and explainable by the specifics of the equipment used.