Stainless Steel Welded Pipe
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DIN 17457 Stainless Steel Welded Pipe Manufacturer, Supplier & Exporter in India
Nishra Overseas is a leading manufacturer, supplier and exporter of Stainless Steel Welded Pipe in India. Welded pipes are essentially strips of metal or alloy formed into a round pipe by welding two ends together. Stainless Steel Welded Pipe eliminates common threats to pipe efficiency and life — environment, water exposure, and corrosion — because it resists rust through the formation of a protective chromium oxide layer. The thickness of this chromium oxide layer is the deciding factor in how much corrosion resistance a given SS Welded Pipe displays.
As a trusted SS Welded ERW Pipe manufacturer, we produce Stainless Steel ERW Pipe (Electric Resistance Weld) known for durability and long service life. ASTM A312 Welded Pipes we supply are used across both commercial and household applications, and can last up to 50 years with proper maintenance — a durability also attributed to their high resistance to extreme temperatures. This is why DIN 17457 stainless steel tubes require minimal ongoing maintenance, keeping the total cost of ownership of SS 316 Welded Pipe low. Being more hygienic than many alternative materials, our welded pipe is also widely used in the food processing industry.
As one of India's leading Stainless Steel Welded Pipe manufacturers, suppliers and exporters, Large Diameter Stainless Steel Welded Pipe supplied by us is used in hospitals and the hospitality industry, where hygiene is critical. This type of welded pipe is non-degradable and fully recyclable. Stainless Steel EFW Pipe (Electric Fusion Weld) is produced by passing high-voltage electricity through the material to heat and melt it, and remains eco-friendly and fully recyclable at the end of its service life. Stainless Steel Spiral Welded Pipe is more cost-effective than seamless tube, since the welding process involved is simpler and more direct than seamless manufacturing.
Nishra Overseas — Large Diameter Stainless Steel Tube manufacturer & SS 304 Spiral Welded Pipe supplier at factory price, custom lengths available
Table of Contents
- SS Welded ERW Pipe/Tube Specification
- Types of SS Welded ERW Pipe/Tube
- SS Welded ERW Pipe/Tube Composition and Properties
- SS Welded ERW Pipe/Tube Dimensions
- Why Nishra Overseas — Manufacturer, Supplier & Exporter
SS Welded ERW Pipe/Tube Specification
Manufacturer of ASTM A312 Welded Pipe, SS EFW Pipe and 316 Stainless Steel Welded Tube in India — check schedule chart, pressure rating and ready sizes in stock
|
Specification |
Details |
|
Product Name |
Stainless Steel Welded Pipe, SS ERW Tube — SS 304, 304L, 316L and other grades |
|
Standards |
ASTM A312, A249, A213, A268, A269, A270, A778 |
|
Type |
As Welded, EFW, ERW |
|
Grades |
304, 304L, 304H, 316, 316L, 316Ti, 321, 321H, 347, 347H, 310S, UNS31803 Duplex |
|
Size |
1/8" NB to 36" NB; 1/4" OD to 36" OD (welded tube also available) |
|
Length |
Up to 6 meters, custom cut lengths |
|
Thickness |
1mm to 20mm |
|
Schedule |
SCH 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S per ANSI B36.19/B36.10 |
|
Our Network |
Mumbai, Chennai, Bangalore, Gujarat — India, Malaysia, Singapore, Saudi Arabia |
Types of SS Welded ERW Pipe/Tube
As a full-scale Welded Pipe manufacturer and exporter, our product range covers the following forms and manufacturing specifications:
Product Forms
- SS Welded Round Pipe / Tube
- SS Welded Square & Rectangular Tube
- SS Welded Coiled Tubing
- SS Welded Heat Exchanger & Finned Tube
- SS Welded Precision & Capillary Tube
- SS Welded Cold Drawn Seamless (CDS) & Drawn Over Mandrel (DOM) Tube
- SS Welded Hot Finished Seamless Tubing (HFS)
- SS Welded Protection Tube & Tubing Bends
Typical Manufacturing Specifications
- ASTM A312, A213, A249, A554, and individual customer specifications. We have the flexibility to produce precision thick-wall or thin-wall welded pipe and tube in As Welded, EFW, and ERW forms.
- Delivery Condition: Hot Finish, Cold Finish, Bright Annealed, Polished, Annealed & Pickled, Passivated, Stress Relieved, As Welded, Welded & Externally Polished, Welded Cold Drawn Annealed & Pickled
- Surface Finish: 2B Mill Finish, No.4, BA, 400/550/600 Grit Finish, Pickled & Brushed, HL, Mirror
- Grades Covered: TP201, TP202, TP304, TP304L, TP304H, TP309S, TP310S, TP316, TP316L, TP316Ti, TP321, TP321H, TP347, TP347H, and Duplex grades S31803/S32205
- 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 & Non-Destructive Test Reports
- Testing Methods: Ultrasonic testing, hydrostatic testing, flattening testing, dimensional inspection, tensile testing, bend test, eddy current test, heat treatment verification
- Marking: All welded pipe and tube is marked with Standard, Grade, OD, Thickness, Length, and Heat No. (or as per customer request)
SS Welded ERW Pipe/Tube Composition and Properties
304/304L/304H Chemical Composition (%)
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Ni |
Fe |
|
304 |
0.08 max |
2.00 max |
1.00 max |
0.045 max |
0.03 max |
18.0–20.0 |
8.0–10.5 |
Balance |
|
304L |
0.03 max |
2.00 max |
1.00 max |
0.045 max |
0.03 max |
18.0–20.0 |
8.0–12.0 |
Balance |
|
304H |
0.04–0.10 |
2.00 max |
1.00 max |
0.045 max |
0.03 max |
18.0–20.0 |
8.0–12.0 |
Balance |
304/304L/304H Mechanical & Physical Properties
|
Property |
304 |
304L |
304H |
|
Density (g/cm³) |
8.0 |
8.0 |
8.0 |
|
Melting Range |
1400°C |
1400°C |
1400°C |
|
Elongation |
40% |
40% |
40% |
|
Tensile Strength (MPa) |
515 |
485 |
515 |
|
Yield Strength (MPa) |
205 |
170 |
205 |
|
Hardness (Brinell) |
201 |
201 |
201 |
SS Welded ERW Pipe/Tube Dimensions
Nishra Overseas — supplier of SS 304 Welded Pipe dimensions from 3/8" to 6" OD, custom-length cutting available at no extra cost
|
OD (inch) |
OD (mm) |
0.8mm WT (kg/100m) |
1.2mm WT (kg/100m) |
2.0mm WT (kg/100m) |
3.0mm WT (kg/100m) |
|
3/8" |
9.5 |
1.06 |
1.51 |
1.82 |
– |
|
1/2" |
12.7 |
1.45 |
2.10 |
2.55 |
– |
|
3/4" |
19.1 |
2.22 |
3.26 |
4.01 |
– |
|
1" |
25.4 |
2.99 |
4.41 |
5.45 |
– |
|
1 1/4" |
31.8 |
3.77 |
5.58 |
6.91 |
– |
|
1 1/2" |
38.1 |
4.53 |
6.73 |
8.34 |
– |
|
2" |
50.8 |
6.08 |
9.04 |
11.24 |
14.83 |
|
3" |
76.2 |
9.17 |
13.68 |
17.03 |
22.55 |
|
4" |
101.6 |
– |
18.31 |
22.82 |
30.27 |
Full dimension chart with all wall thicknesses and sizes up to 6" available on request
Applications of SS Welded Pipe
- Food processing and hygienic process piping
- Hospitals and hospitality-sector plumbing
- Commercial and residential water systems
- Handrails, balustrades, and architectural applications
- Chemical, marine, and water treatment industries
- Oil & gas and petrochemical pipelines
Why Nishra Overseas — Welded Pipe Manufacturer, Supplier & Exporter in India
Nishra Overseas LLP is a Mumbai-based manufacturer, supplier, stockist and exporter of Stainless Steel Welded Pipe and Tube, backed by ISO 9001:2015 certification.
- As a Manufacturer — As Welded, EFW and ERW production in-house to ASTM A312/A249/A213 specification, with custom cutting, threading and grooving
- As a Supplier — ready stock across common grades (304, 304L, 316, 316L, 321, 347, Duplex) and sizes, held in Mumbai for fast delivery without mill lead times
- As an Exporter — shipments of welded pipe and tube to clients worldwide, with full mill test certificates (EN 10204 3.1/3.2), PMI test reports, and third-party inspection (SGS/BV/TUV)