Stainless steel welded pipe manufacturer and supplier in India

Table of Content

Stainless steel welded pipe specification
SS welded tube pressure rating
Stainless steel welded round tube application
Sch 10 stainless steel pipe welded testing methods
Types of SS welded pipes
EFW SS pipe dimension chart
Stainless steel welded pipe weight chart
Spiral welded SS pipe wall thickness
SS ERW pipes chemical composition
SS welded pipes mechanical composition
Stainless steel welded pipe hs code
SS ERW pipes equivalent material
Why stainless steel welded pipe manufacturer in vietnam buy from India?
What are the common defects that can occur during the welding of stainless steel welded pipe

What is a stainless steel welded pipe?

These robust pipes get manufactured from strips or sheets rolled into tubular shapes and welded longitudinally. Mills can use hot forming or cold forming for a stainless steel welded pipe. The latter translates into finer precision and a smoother finish.

SS welded round pipes and stainless steel ERW pipe supplier in Mumbai

Why does a stainless steel spiral pipe shrink when welded?

Spiral piping gets produced from a coil rolled per a specified helical angle. A stainless steel spiral pipe is a fixture in the air conditioning sector.

Shrinkage during welding a stainless steel spiral welded pipe is natural since thermal contraction acts on the metal upon cooling. Resulting distortion in a spiral welded stainless steel pipe can get minimized by fewer welding passes.

Stainless steel welded pipe specification

Stainless steel welded pipe and tubes grade	Other trade name & equivalent	Length
300 Series, 304, 304l, 316, 316l, 347, 409, 410	SUS 304 AISI 304l INOX 316	Double, Single random or Cut to size
EFW stainless steel pipe origin	Toleranceof SS welded pipes	Delivery Time
Indian, China	±10%	1-2 days
Available size in stock	Wall thickness	Stainless steel EFW welded pipe brand name
1/2 inch NB to 24 inch NB	1 milimeter to 20 milimeter	Sona, steel 568
Stainless steel welded round tube surface finish	Types	Shapes
Bright Annealing BA Finis Cold Finish No.4 finish Polished, Pickling	ERW, Welded, Fabricated, LSAW	Square, rectangle, round
ASTM A312 stainless steel welded pipe Standard	Manufacturing technique	Stainless steel welded square pipes schedule
Guojia biaozhun(GB) European standards (EN) AISI ASTM/ ASME (American) Japanese industrial standards (JIS) German standard (DIN) GOST	Hot or cold formed	Sch 10 Sch 20 Sch 40 Sch 60 Sch 80 Sch 120
Mill	Processing	Packing
As per EN 10204 3.1/3.2	Bending Decoiling Welding Cutting	Bundle form Bundle packaging Container packaging
Testing methods done	Value added service	Application of SS ERW pipes
Hardness test PMI test Tensile test Third party inspection Fatigue mechanics test Impact test	Beveling Heat treating Polishing Ut test	Oil and Gas Processing Pulp and Paper sector Power Plants sector Construction Textile Machinery

Stainless steel welded pipe manufacturer in India offers custom sizes and finishes as per client requirement

Distributor and manufacturer of stainless steel spiral pipe in Mumbai. Check the stainless steel welded pipes pressure rating

SS welded tube pressure rating

Size	Outer dia	5	5s	10	10s	40	40s & STD
1/4	0.54	0.049		0.065	0.065	0.088	0.088
1/4		0.257		0.3297	0.3297	0.4248	0.4248
1/8	0.405	0.35		0.049	0.049	0.068	0.068
1/8		0.1383		0.1863	0.1863	0.2447	0.2447
1/2	0.84	0.065	0.065	0.083	0.083	0.109	0.109
1/2		0.5383	0.5383	0.671	0.671	0.851	0.851
3/8	0.675	0.049		0.065	0.065	0.091	0.091
3/8		0.3276		0.4235	0.4235	0.5676	0.5676
1	1.315	0.065	0.065	0.19	0.109	0.133	0.133
1		0.8678	0.8678	1.404	1.404	1.679	1.679
3/4	1.05	0.065	0.065	0.083	0.083	0.113	0.113
3/4		0.6838	0.6838	0.8572	0.8572	1.131	1.131
1 1/2	1.9	0.065	0.065	0.109	0.109	0.145	0.145
1 1/2		1.274	1.274	2.638	2.638	2.718	2.718
1 1/4	1.66	0.065	0.065	0.109	0.109	0.14	0.14
1 1/4		1.107	1.107	1.806	1.806	2.273	2.273
2 1/2	2.875	0.083	0.083	0.12	0.12	0.203	0.203
2 1/2		2.475	2.475	3.531	3.531	5.793	5.793
2	2.375	0.065	0.065	0.109	0.109	0.154	0.154
2		1.604	1.604	2.638	2.638	3.653	3.653
3 1/2	4	0.083	0.083	0.12	0.12	0.226	0.226
3 1/2		3.472	3.472	4.97	4.97	9.109	9.109
3	3.5	0.083	0.083	0.12	0.12	0.216	0.216
3		3.029	3.029	4.332	4.332	7.576	7.576
4	4.5	0.083	0.083	0.12	0.12	0.237	0.237
4		3.915	3.915	5.613	5.613	10.79	10.79
6	6.625	0.109	0.109	0.134	0.134	0.28	0.28
6		7.585	7.585	9.289	9.289	18.97	18.97
5	5.563	0.109	0.109	0.134	0.134	0.258	0.258
5		6.349	6.349	7.77	7.77	14.62	14.62
8	8.625	0.109	0.109	0.148	0.148	0.322	0.322
8		9.914	9.914	13.4	13.4	28.55	28.55
7	7.625						0.301
7							23.57
9	9.625						0.342
9							33.9
10	10.75	0.134	0.134	0.165	0.165	0.365	0.365
10		15.19	15.19	18.65	18.65	40.48	40.48
14	14		0.156	0.25	0.188	0.437	0.375
14			23.06	36.71	27.73	63.67	54.57
12	12.75	0.165	0.156	0.18	0.18	0.406	0.375
12		22.18	21.07	24.2	24.2	53.53	49.56
18	18		0.165	0.25	0.188	0.562	0.375
18			31.43	47.39	35.76	104.8	70.59
16	16		0.165	0.25	0.188	0.5	0.375
16			27.9	42.05	31.75	82.77	62.58
24	24		0.218	0.25	0.25	0.687	0.375
24			55.37	63.41	63.41	171.2	94.62
20	20		0.188	0.25	0.218	0.593	0.375
20			39.78	52.73	46.05	122.9	78.6
26	26			0.312			0.375
26				85.6			102.6
30	30		0.25	0.312	0.312		0.375
30			79.43	98.93	98.93		118.6
34	34			0.312		0.688	0.375
34				112.3		244.8	134.7
40	40						0.375
40							158.7
42	42						0.375
42							166.7

SS welded pipe

Stainless steel ERW pipe

SS ERW pipe

What is the manufacturing process for an SS welded pipe?

The process entails forming the plate or strip into a tube and welding. An SS ERW pipe uses electric resistance welding and delivers dependability with cost-effectiveness.

An stainless steel EFW pipe, which uses electric fusion welding, has higher strength. Manufacturers pick SSAW or LSAW (Spiral or Longitudinally Submerged Arc Welding). They offer greater precision and stringent tolerance than a stainless steel ERW pipe.

ANSI B36.19 welded stainless steel pipe are used in various applications such as petroleum, oil, and gas

Stainless steel welded round tube application

Sugar Mills
Food Processing
Paper & Pulp sector
Construction
Engineering Industries
Power Plants

Various destructive & non destructive tests are performed on stainless steel spiral welded pipe

Sch 10 stainless steel pipe welded testing methods

Visual Inspection – To detect surface defects
Ultrasonic Testing – To detect internal flaws
Radiographic Testing – To check internal defects
Dye Penetrant Testing – To check surface cracks
Hydrostatic Testing – To check for leakage
Bend Testing – To check ductility and the ability of the welded joint
Hardness Testing – To check hardness
Non Destructive Testing
Pneumatic Testing – Using air or gas to detect leaks

Types of SS welded pipes

Stainless steel welded tube

Schedule 80 ss welded pipe
Schedule 10 ss erw pipe

ANSI B36.19 welded stainless steel pipe

Size : 1/2” NB to 24”
Thickness : 1mm to 20mm

Stainless steel ERW tube

End : Plain, beveled end
Used in sugar mills, food processing

Stainless steel welded round tube

Stainless steel welded square pipes

ASTM A312 stainless steel welded round pipe

SS spiral welded pipe

Spiral wound stainless steel pipe

Large diameter stainless steel welded pipe

Nirosta welded rectangular pipe

Chrome steel erw square pipe

Chrome nickel steel polished welded pipes

Refer ERW stainless steel pipe dimension chart

EFW SS pipe dimension chart

NPS	Outer dia Inches	10	10s	40	40s & Std	80	80s.	160
1/4	.540	.065	.065	.088	.088	.119	.119
1/8	.405	.049	.049	.068	.068	.095	.095
1/2	.840	.083	.083	.109	.109	.147	.147	.187
3/8	.675	.065	.065	.091	.091	.126	.126
1	1.315	.109	.109	.133	.133	.179	.179	.250
3/4	1.050	.083	.083	.113	.113	.154	.154	.218
1 1/2	1.900	.109	.109	.145	.145	.200	.200	.281
2	2.375	.109	.109	.154	.154	.218	.218	.343
3	3.500	.120	.120	.216	.216	.300	.300	.437
4	4.500	.120	.120	.237	.237	.337	.337	.531
6	6.625	.134	.134	.280	.280	.432	.432	.718
5	5.563	.134	.134	.258	.258	.375	.375	.625
8	8.625	.148	.148	.322	.322	.500	.500	.906
7	7.625				.301		.500
10	10.750	.165	.165	.365	.365	.593	.500	1.125
9	9.625				.342		.500
12	12.750	.180	.180	.406	.375	.687	.500	1.312
11	11.750				.375		.500
16	16.000	.250	.188	.500	.375	.843	.500	1.593
14	14.000	.250	.188	.437	.375	.750	.500	1.406
18	18.000	.250	.188	.562	.375	.937	.500	1.781

Stainless steel welded pipe manufacturer in India as per ASTM A312 standard

Stainless steel welded pipe weight chart

Outer dia	Nominal Wall Thickness
DIA	5s		.5		10S		10		20S		30		40S		40		60
MM	Thk	WT Kg/Mtr	Thk	WT Kg/Mtr	Thk	WT Kg/Mtr	Thk	WT Kg/Mtr	Thk	WT Kg/Mtr	Thk	WT Kg/Mtr	Wall Thk	WT Kg/Mtr	Thk	WT Kg/Mtr	Thk	WT Kg/Mtr
10.3	1	0.23			1.2	0.27			1.5	0.33			1.73	0.37
17.2	1.2	0.47			1.65	0.63			2	0.74			2.31	0.87
13.7	1.2	0.37			1.65	0.49			2	0.58			2.24	0.64
26.7	1.65	1.03	1.65	1.03	2.11	1.3	2.11	1.3	2.5	1.49			2.87	1.71
21.3	1.65	0.01	1.65	0.81	2.11	1.02	2.11	1.02	2.5	1.15			2.77	1.29
24.2	1.65	1.67	1.65	1.67	2.77	2.73	2.77	2.73	3	2.9			3.56	3.44
48.3	1.65	1.93	1.65	1.93	2.77	3.16	2.77	3.16	3	3.35			3.68	4.11
33.4	1.65	1.31	1.65	1.31	2.77	2.13	2.77	2.13	3	2.24			3.38	2.54
73	2.11	3.75	2.11	3.75	3.05	5.34	3.05	5.34	3.5	6			5.16	8.77
60.3	1.65	1.93	1.65	2.42	2.77	3.99	2.77	3.99	3.5	4.9			3.91	5.52
101.6	2.11	5.25	2.11	5.25	3.05	7.53	3.05	7.53	4	9.62			5.74	13.78
88.9	2.11	4.59	2.11	4.59	3.05	6.56	3.05	6.56	4	8.37			5.49	11.47
114.3	2.11	5.93	2.11	5.93	3.05	8.5	3.05	8.5	4.5	12.18			6.02	6.32
219.1	2.77	15	2.77	15	3.76	20.77	3.76	20.27	6.35	33.82	7.04	37.38	8.18	43.2			10.81	53.9
168.3	2.77	11.47	2.77	11.47	3.4	14.04	3.43	14.04	5.5	22.08			7.11	28.69
323.9	3.96	31.72	4.19	33.6	4.57	36.54	4.57	36.54	6.35	50.48	8.38	66.2	9.53	75.01	10.31	80.94	14.27	110.62
355.6	3.96	34.86			4.78	41.99	6.35	55.53	7.92	68.95	9.53	82.58	9.53	82.58	11.13	96	15.06	128.42
273.1	3.4	22.95	3.4	22.95	4.19	28.2	4.19	28.2	6.35	42.41	7.8	51.81	9.27	61.22			12.2	82.8
457.2	4.19	47.46			4.78	54.15	6.35	71.69	7.92	89.1	11.13	124.32	9.53	106.83	14.27	158.27	19.05	209
406.4	4.19	42.2			4.78	48.07	6.35	63.61	7.92	79.03	9.53	94.7	9.53	94.7	12.7	125.2	16.66	162.59
508	4.78	60.23			5.54	69.7	6.35	79.76	9.53	118.93	12.7	157.51	9.53	118.9	15.06	185.89	2062	251.65
914.4							7.92	179.77	12.7	286.75	15.88	357.28	9.53	215.93	19.05	427.09

Stainless steel welded tube manufacturer in India stocks on 1/4 to 36 inch with high quality and low prices

Spiral welded SS pipe wall thickness

Outside Diameter inch.	NPS	Schedule 10S inch.	Schedule 5S inch.	Schedule 80S inch.	Schedule 40S inch.
0.675	3/8	0.065		0.126	0.091
0.54	1/4	0.065		0.119	0.088
1.05	3/4	0.083	0.065	0.154	0.113
0.84	1/2	0.083	0.065	0.147	0.109
1.66	1 1/4	0.109	0.065	0.191	0.14
1.315	1	0.109	0.065	0.179	0.133
2.375	2	0.109	0.065	0.218	0.154
1.9	1 1/2	0.109	0.065	0.2	0.145
3.5	3	0.12	0.083	0.3	0.216
2.875	2 1/2	0.12	0.083	0.276	0.203
4.5	4	0.12	0.083	0.337	0.237
4	3 1/2	0.12	0.083	0.318	0.226
12.75	12	0.18	0.156	0.5	0.375
6.625	6	0.134	0.109	0.432	0.28
5.563	5	0.134	0.109	0.375	0.258
10.75	10	0.165	0.134	0.5	0.365
8.625	8	0.148	0.109	0.5	0.322

SS ERW pipes chemical composition

Grade	Mn	Nitrogen	C	S	P	Cr	Si	Mo	Ni
304	2.00	0.10	0.08	0.030	0.045	18.00 – 20.00	0.75	–	8.00- 10.50
304L	2.00	0.10	0.030	0.030	0.045	18.00 – 20.00	0.75	–	8.00- 12.00
310S	2.00	–	0.08	0.030	0.045	24.00- 26.00	1.50	–	19.00 – 22.00
316	2.00	0.10	0.08	0.030	0.045	16.00 – 18.00	0.75	2.00 – 3.00	10.00 – 14.00
316L	2.00	0.10	0.030	0.030	0.045	16.00 – 18.00	0.75	2.00 – 3.00	10.00 – 14.00
321	2.00	0.10	0.08	0.030	0.045	17.00 – 19.00	0.75	–	9.00 – 12.00
347	2.00	–	0.08	0.030	0.045	17.00 – 19.00	0.75	–	9.00 – 13.00
409	1.00	–	0.08	0.010	0.040	10.50 – 11.75	1.00	–	0.50
410	1.00	–	0.15	0.030	0.040	11.50- 13.50	1.00	–	0.75

Top 6 welded stainless steel tube manufacturer as per ASME B36.10M

SS welded pipes mechanical composition

Grade	%Age Elongation in 50mm gauge L minnimum	Yield Strength Mpa	Tensile Strength Mpa	Hardness (Max)
Grade	%Age Elongation in 50mm gauge L minnimum	Yield Strength Mpa	Tensile Strength Mpa	BHN	Rb
304	40	205	515	201	92
304L	40	170	485	201	92
310S	40	205	515	217	95
316	40	205	515	217	95
316L	40	170	485	217	95
321	40	205	515	217	95
347	40	205	515	201	92
409	20	170	380	179	88
410	20	205	450	217	89
420	15	–	700( max )	217	95

Buy directly from stainless steel ERW pipe manufacturer in India with MTC EN 10204 3.1/3.2 certificate

Stainless steel welded pipe hs code

Maerial	HS code
welded stainless steel pipe	73062100

Maruti Metal Industries is a stainless steel welded pipe wholesale supplier in Mumbai.

SS ERW pipes equivalent material

Grades	UNS No	WNR	BS	JIS	AFNOR	GOST	EN
304L	S30403	1.4306 / 1.4307	3304S11	SUS 304L	Z3CN18‐10	03Х18Н11	X2CrNi18-9 / X2CrNi19-11
304	S30400	1.4301	304S31	SUS 304	Z7CN18‐09	08Х18Н10	X5CrNi18-10
316	S31600	1.4401 / 1.4436	316S31 / 316S33	SUS 316	Z7CND17‐11‐02	–	X5CrNiMo17-12-2 / X3CrNiMo17-13-3
310	S31000	1.4841	310S24	SUS 310	–	20Ch25N20S2	X15CrNi25-20
347	S34700	1.4550	–	SUS 347	–	08Ch18N12B	X6CrNiNb18-10
316L	S31603	1.4404 / 1.4435	316S11 / 316S13	SUS 316L	Z3CND17‐11‐02 / Z3CND18‐14‐03	03Ch17N14M3 / 03Ch17N14M2	X2CrNiMo17-12-2 / X2CrNiMo18-14-3
904L	N08904	1.4539	904S13	SUS 904L	Z2 NCDU 25-20	STS 317J5L	X1NiCrMoCu25-20-5

Looking for stainless steel welded pipe supplier in India? Maruti Metal Industries stocks wide range of A312 welded pipe at best price

Why stainless steel welded pipe manufacturer in vietnam buy from India?

What are the common defects that can occur during the welding of stainless steel welded pipe

Defects	Causes
Porosity	Contaminated surface or moisture
Incomplete Fusion	Improper welding parameters
Cracks	Improper used of filler material
Weld Metal Discontinuities	Contamination
Undercutting	Excessive input heat
Heat Affected Zone	Lack of PWHT
Distortion	Improper welding sequence
Color Change	Lack of shielding gas
Overlapping	Improper welding angle

Contact directly to stainless steel ERW pipe manufacturer India for custom sizes and cut to size as per requirement

Compare prices between India and China for a spiral wound stainless steel pipe?

India and China are among the leading suppliers of spiral wound stainless steel pipe to power plants, oil and gas industries, and pharmaceuticals. Buyers can source standard-length piping for approximately INR 99 to 200 in India.

A spiral large diameter stainless steel welded pipe from China costs $1,200 to $1,500.00 a ton. As the prices are comparable, your decision should examine the raw-material origin, quality control, availability, and shipping/delivery times.

What are the benefits of ultrasonic testing in ensuring the quality of a stainless steel EFW pipe?

Ultrasonic testing (UT) accurately diagnoses defects in a stainless steel EFW pipe, both thick and thin. Another bonus of UT testing for stainless steel welded round pipes is access to just one side and suitability for volumetric analysis.

What are the advantages of an SS Welded schedule 40 pipes over a stainless steel SSAW pipe?

An SCH 40 stainless steel welded pipe uses moderate wall thickness but shows top-notch strength and resistance to corrosion and oxidation. A downside of SSAW piping is the necessity of thorough quality inspection. This technique struggles to align the welding torch, potentially causing poorer quality than an SS welded pipe.