Stainless Steel Pipes Tubes Manufacturer and Supplier

ANSI B36.19 Stainless Steel 304 Pipes, 304 Stainless Steel Tubing, Stainless Steel 304 Pipes, Stainless Steel 304 Tube, Austenitic Stainless Steel 304 Pipes/Tubes, ASTM A312 SS TP304 Pipe, Stainless Steel 1.4301 Pipes/Tubes, Stainless Steel 304 Pipes Manufacturer in Mumbai India.

About Buttweld Fittings.
Standard Specification for Stainless Steel Pipes/Tubes
Types of Stainless Pipes.
ASTM A312 SS Pipes/Tubes Equivalent Grades
Stainless Steel Pipe Manufacturing Grades
Chemical Composition of Stainless Steel Pipes, as per ASTM A312 Manufacturing Standard
Mechanical Properties of Stainless Steel Pipes, as per ASTM A312
Dimensions of Welded and Seamless Stainless Steel Pipe
Stainless Steel Pipes Manufacturing Specifications
People Also Searched for SS Pipes/Tubes Fittings
Stainless Steel Pipes/Tubes Export Destinations

About Stainless Steel Pipes and Tubes.

As one of the leading stainless steel pipe manufacturers in India, we stock over 600 tons in ss seamless and welded pipes. We are one of the largest stainless steel pipe supplier in India. Our stainless steel products include stainless steel seamless tube, stainless steel welded tube, ss seamless pipe and ss welded pipe. We supply a large variety of grades in size range of 6mm OD to 610mm OD, with thickness upto 30mm. We manufacture large diameter fabricated stainless steel pipes, high wall thick stainless steel pipes and thin walled stainless steel tubings.

Stainless Steel Pipes/ Tubes have ferrous to provide high accuracy in pressure fitting. It can be easily connected with one to another pipes & tubes and will provide a leakage-free service. It resists the corrosion of chloride, alkaline solutions and can be used in an elevated temperature environment. Stainless Steel Pipes/ Tubes have a passive layer of the microstructure of chromium and nickel to resist the oxidizing and rust formation.

We have skilled quality expert team that conduct all standard destructive, non-destructive tests of Stainless Steel Pipes/ Tubes and then deliver flawless pipes and tubes which exhibit great performance in the test. We maintain the considerable stock of Stainless Steel Pipes/ Tubes to ensure immediate delivery in case of emergency requirements. We store finished and semi-finished pipes/tubes at our well-developed storage unit safely and securely. We offer completely damage-proof packaging of Stainless Steel Pipes/ Tubes and provide safe delivery to the desired locations of global customers within the decided time.

Standard Specification for Stainless Steel Pipes/Tubes

Specifications

ASTM A/ASME SA213, A249, A269, A312, A358

Standard

ASTM, ASME and API

Form

Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes

Size

1 / 8″ NB – 24″ NB

Type

Seamless / ERW / EFW / Welded / Fabricated / LSAW Pipes

Grades

TP 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L.

Types of Stainless Pipes.

Seamless Pipes

Welded Pipes

Seamless Tubes

Welded Tubes

ERW Pipes/Tubes

EFW Pipes

ASTM A312 SS Pipes/Tubes Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS
SS 304	1.4301	S30400
SS 304L	1.4306 / 1.4307	S30403
SS 304H	1.4301	S30409
SS 310	1.4841	S31000
SS 310S	1.4845	S31008
SS 310H	–	S31009
SS 316	1.4401 / 1.4436	S31600
SS 316L	1.4404 / 1.4435	S31603
SS 316H	1.4401	S31609
SS 316Ti	1.4571	S31635
SS 317	1.4449	S31700
SS 317L	1.4438	S31703
SS 321	1.4541	S32100
SS 321H	1.4878	S32109
SS 347	1.4550	S34700
SS 347H	1.4961	S34709
SS 904L	1.4539	N08904

Stainless Steel Pipe Manufacturing Grades

Stainless Steel Pipe Manufacturing Grades
Austenite Stainless Steel Pipe Grades	304/304L, 316/316L, 304H, 304LN, 316Ti, 310S, 904L, 317L, 321/321H, 347/347H
Martensite Stainless Steel Pipes Grades	446, 410S
Duplex Stainless Steel Pipes Grades	S31803, S32205, S32750, Duplex 2205, Super Duplex 2507

Outside Diameter	6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock
Thickness Range	0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Type	Seamless / ERW / Welded / Fabricated / CDW
Form	Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes
Length	Single Random, Double Random & Required Length End: Plain End, Beveled End, Treaded
End Protection	Plastic Caps
Surface Finish:	2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
Delivery Condition	Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Inspection, Test Reports	Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
Packing	Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials	Sizes and Specifications other than above can be manufactured on request

Chemical Composition of Stainless Steel Pipes, as per ASTM A312 Manufacturing Standard

The below table shows the chemical composition of the most used A312 Stainless Steel Pipes:

A312 GRADES	UNS	C	Mn	P	S	Si	Cr	Ni	Mo	Ti	Nb	N
TP304	S30400	0.08	2	0.045	0.03	1	18.0-20.0	8.0-11.0
TP304L	S30403	0.035	2	0.045	0.03	1	18.0-20.0	8.0-13.0
TP304H	S30409	0.04-0.10	2	0.045	0.03	1	18.0-20.0	8.0-11.0
TP304N	S30451	0.08	2	0.045	0.03	1	18.0-20.0	8.0-18.0				0.10-0.16
TP304LN	S30453	0.035	2	0.045	0.03	1	18.0-20.0	8.0-12.0				0.10-0.16
TP309S	S30908	0.08	2	0.045	0.03	1	22.0-24.0	12.0-15.0	0.75
TP309H	S30909	0.04-0.10	2	0.045	0.03	1	22.0-24.0	12.0-15.0
TP309Cb	S30940	0.08	2	0.045	0.03	1	22.0-24.0	12.0-16.0	0.75		10xC min
TP309Cb	S30940	0.08	2	0.045	0.03	1	22.0-24.0	12.0-16.0	0.75		1.10 max
TP309HCb	S30941	0.04-0.10	2	0.045	0.03	1	22.0-24.0	12.0-16.0	0.75		10xC min
TP309HCb	S30941	0.04-0.10	2	0.045	0.03	1	22.0-24.0	12.0-16.0	0.75		1.10 max
TP310S	S3108	0.08	2	0.045	0.03	1	24.0-26.0	19.0-22.0	0.75
TP310H	S3109	0.04-0.10	2	0.045	0.03	1	24.0-26.0	19.0-22.0
TP310Cb	S31040	0.08	2	0.045	0.03	1	24.0-26.0	19.0-22.0	0.75		10xC min
TP310Cb	S31040	0.08	2	0.045	0.03	1	24.0-26.0	19.0-22.0	0.75		1.10 max
TP310HCb	S31041	0.04-0.10	2	0.045	0.03	1	24.0-26.0	19.0-22.0	0.75		10xC min
TP310HCb	S31041	0.04-0.10	2	0.045	0.03	1	24.0-26.0	19.0-22.0	0.75		1.10 max
TP316	S3160	0.08	2	0.045	0.03	1	16.0-18.0	11.0-14.0	2.0-3.0
TP316L	S31603	0.035	2	0.045	0.03	1	16.0-18.0	10.0-14.0	2.0-3.0
TP316H	S31609	0.04-0.10	2	0.045	0.03	1	16.0-18.0	11.0-14.0	2.0-3.0
TP316Ti	S31635	0.08	2	0.045	0.03	0.75	16.0-18.0	10.0-14.0	2.0-3.0	5x		0.1
										(C-N)
										-0.7
TP316N	S31651	0.08	2	0.045	0.03	1	16.0-18.0	10.0-14.0	2.0-3.0			0.10-0.16
TP316LN	S31653	0.035	2	0.045	0.03	1	16.0-18.0	11.0-14.0	2.0-3.0			0.10-0.16
TP317	S3170	0.08	2	0.045	0.03	1	18.0-20.0	10.0-14.0	3.0-4.0
TP317L	S31703	0.035	2	0.045	0.03	1	18.0-20.0	11.0-15.0	3.0-4.0
TP321	S3210	0.08	2	0.045	0.03	1	17.0-19.0	9.0-12.0				0.1
TP321H	S32109	0.04-0.10	2	0.045	0.03	1	17.0-19.0	9.0-12.0				0.1
TP347	S3470	0.08	2	0.045	0.03	1	17.0-19.0	9.0-13.0
TP347H	S34709	0.04-0.10	2	0.045	0.03	1	17.0-19.0	9.0-13.0
TP347LN	S34751	0.05-0.02	2	0.045	0.03	1	17.0-19.0	9.0-13.0			0.20-	0.06-0.10
TP347LN	S34751	0.05-0.02	2	0.045	0.03	1	17.0-19.0	9.0-13.0			50	0.06-0.10
TP348	S3480	0.08	2	0.045	0.03	1	17.0-19.0	9.0-13.0
TP348H	S34809	0.04-0.10	2	0.045	0.03	1	17.0-19.0	9.0-13.0

Mechanical Properties of Stainless Steel Pipes, as per ASTM A312

Dimensions of Welded and Seamless Stainless Steel Pipe

NPS	Outside Diameter		Nominal Wall Thickness
Designator	in.	mm	Schedule 5S		Schedule 10S		Schedule 40S		Schedule 80S
	in.	mm	in.	mm	in.	mm	in.	mm	in.	mm
1/8	0.41	10.29	…	…	0.049	1.24	0.068	1.73	0.095	2.41
1/4	0.54	13.72	…	…	0.065	1.65	0.088	2.24	0.119	3.02
3/8	0.68	17.15	…	…	0.065	1.65	0.091	2.31	0.126	3.2
1/2	0.84	21.34	0.065	1.65	0.083	2.11	0.109	2.77	0.147	3.73
3/4	4.05	26.67	0.065	1.65	0.083	2.11	0.113	2.87	0.154	3.91
1	1.32	33.4	0.065	1.65	0.109	2.77	0.133	3.38	0.179	4.55
1 1/4	1.66	42.16	0.065	1.65	0.109	2.77	0.14	3.56	0.191	4.85
1 1/2	1.90	48.26	0.065	1.65	0.109	2.77	0.145	3.68	0.2	5.08
2	2.38	60.33	0.065	1.65	0.109	2.77	0.154	3.91	0.218	5.54
2 1/2	2.88	73.03	0.083	2.11	0.12	3.05	0.203	5.16	0.276	7.01
3	3.50	88.9	0.083	2.11	0.12	3.05	0.1216	5.49	0.3	7.62
3 1/2	4.00	101.6	0.083	2.11	0.12	3.05	0.226	5.74	0.318	8.08
4	4.50	114.3	0.083	2.11	0.12	3.05	0.237	6.02	0.337	8.56
5	5.56	141.3	0.10*9	2.77	0.134	3.4	0.258	6.55	0.375	9.52
6	6.63	168.28	0.10*9	2.77	0.134	3.4	0.28	7.11	0.432	10.97
8	8.63	219.08	0.109	2.77	0.148	3.76	0.322	8.18	0.5	12.7
10	10.75	273.05	0.134	3.4	0.165	4.19	0.365	9.27	0.5	12.7
12	12.75	323.85	0.156	3.96	0.18	4.57	0.375	9.52	0.5	12.7
14	14.00	355.6	0.156	3.96	0.188	4.78	…	…	…	…
16	16.00	406.4	0.165	4.19	0.188	4.78	…	…	…	…
18	18.00	457.2	0.165	4.19	0.188	4.78	…	…	…	…
20	20.00	508	0.188	4.78	0.188	4.78	…	…	…	…
22	22.00	558.8	0.188	4.78	0.218	5.54	…	…	…	…
24	24.00	609.6	0.218	5.54	0.25	6.35	…	…	…	…
30	30.00	762	0.25	6.35	0.312	7.92	…	…	…	…

Outside Diameter Tolerance of Stainless Steel Pipes

NPS	ASTM A312 OD Tolerance
	+		–
	inch	mm	inch	mm
1/8~1 1 /2	1/64(0.015)	0.4	1/32(0.031)	0.8
> 1 1 /2~4	1/32(0.031)	0.8	1/32(0.031)	0.8
> 4~8	1/16(0.062)	1.6	1/32(0.031)	0.8
> 8~18	3/32(0.093)	2.4	1/32(0.031)	0.8
> 18~26	1/8(0.125)	3.2	1/32(0.031)	0.8
> 26~34	5/32(0.156)	4	1/32(0.031)	0.8
> 34~48	3/16(0.187)	4.8	1/32(0.031)	0.8

Wall Thickness Tolerance of Stainless Steel Pipes

NPS	ASTM A312 WT Tolerance, %
NPS	+	–
1/8-2 1 /2	20	12.5
3~18, t/D≤ 5%	22.5	12.5
3~18, t/D> 5%	15	12.5
≥ 20, welded	17.5	12.5
≥ 20, seamless, t/D≤ 5%	22.5	12.5
≥ 20, seamless, t/D> 5%	15	12.5

Stainless Steel Pipes Manufacturing Specifications

ASTM A312: Seamless and straight-seam welded austenitic pipe intended for high temperature and general corrosive service. Filler metal not permitted during welding.

ASTM A358: Electric fusion welded austenitic pipe for corrosive and/or high temperature service. Typically only pipe up to 8 inch is produced to this specification. Addition of filler metal is permitted during welding.

ASTM A790: Seamless and straight-seam welded ferritic/austenitic (duplex) pipe intended for general corrosive service, with a particular emphasis on resistance to stress corrosion cracking.

ASTM A409: Straight-seam or spiral-seam electric fusion welded large diameter austenitic light-wall pipe in sizes 14” to 30” with walls Sch5S and Sch 10S for corrosive and/or high

ASTM A376: Seamless austenitic pipe for high temperature applications.

ASTM A813: Single-seam, single- or double- welded austenitic pipe for high temperature and general corrosive applications.

ASTM A814: Cold-worked welded austenitic pipe for high temperature and general corrosive service.

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Stainless Steel Pipes/Tubes Export Destinations

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ASTM A312 Mechanical Properties
Material	Heat	Temperure	Tensile Strength	Yield Strength	Elongation %, Min
	Treatment	Min.	Ksi (MPa), Min.	Ksi (MPa), Min.
		º F(º C)
TP304	Solution	1900 (1040)	75(515)	30(205)	35
TP304L	Solution	1900 (1040)	70(485)	25(170)	35
TP304H	Solution	1900 (1040)	75(515)	30(205)	35
TP310S	Solution	1900 (1040)	75(515)	30(205)	35
TP316	Solution	1900(1040)	75(515)	30(205)	35
TP316L	Solution	1900(1040)	70(485)	25(170)	35
TP316H	Solution	1900(1040)	75(515)	30(205)	35
TP316Ti	Solution	1900(1040)	75(515)	30(205)	35
TP321	Solution	1900(1040)	75(515)	30(205)	35
TP321H	Solution	Cold: 2000(1100)	75(515)	30(205)	35
TP321H	Solution	Hot: 1925(1050)	75(515)	30(205)	35
TP347	Solution	1900(1040)	75(515)	30(205)	35
TP347H	Solution	Cold: 2000(1100)	75(515)	30(205)
TP347H	Solution	Hot: 1925(1050)	75(515)	30(205)