Stainless Steel Welded Pipe Specifications
This table lists key standards, sizes, grades and manufacturing details to help select suitable stainless steel welded pipes.
| Parameter | Details |
|---|---|
| Standard | ASTM A312 / ASME SA312 |
| Additional Standards | ASTM A358, ASTM A778, ASTM A409 |
| Grades | 202, 304, 304L, 310, 310S, 316, 316L, 321, 347, 347H |
| Manufacturing Process | Electric Fusion Welded (EFW), Electric Resistance Welded (ERW), TIG Welded |
| Outer Diameter Range | 10.3 mm to 2032 mm (1/8" to 80") |
| Wall Thickness | 0.5 mm to 20 mm |
| Thickness Schedule | SCH 5S, SCH 10S, SCH 40S, SCH 80S, SCH 160 |
| Length | Single Random (4 to 7 m), Double Random (7 to 14 m), Cut to Length |
| Form | Straight Pipe, Coiled Pipe |
| Surface Finish | 2B, No.1, Pickled, Polished, Electropolished, Mill Finish |
| Condition | Annealed & Pickled / Solution Annealed |
| End Type | Plain End, Bevelled End, Threaded End |
Stainless Steel Welded Pipe Sizes & Schedule Chart
The following are the standard sizes of SS welded pipes provided by Sachiya Steel.
| NPS (Size Range: 1/8"-48"+) | OD (mm) | Sch 10S WT (mm) | Sch 40S WT (mm) | Standard Length |
|---|---|---|---|---|
| 1/2" | 21.3 | 2.11 | 2.77 | 6 m / 12 m |
| 1" | 33.4 | 2.77 | 3.38 | 6 m / 12 m |
| 2" | 60.3 | 2.77 | 3.91 | 6 m / 12 m |
| 4" | 114.3 | 3.05 | 6.02 | 6 m / 12 m |
| 6" | 168.3 | 3.40 | 7.11 | 6 m / 12 m |
| 8" | 219.1 | 3.76 | 8.18 | 6 m / 12 m |
Stainless Steel Welded Pipe Price
Stainless steel welded pipe typically costs around ₹200 to ₹500 per kg (about USD 3 to 8 per kg), with the exact price varying by grade, diameter, wall thickness, and order volume. TP304/304L is generally the most cost-effective austenitic grade, while TP316L is priced higher because of its molybdenum content. Speciality grades are more expensive overall, reflecting their richer alloying elements. Final prices are influenced by current raw material rates, required quantity, surface finish, and any additional testing needs. Get in touch with us for a customised, competitive quote.
Stainless Steel Welded Pipe Grades
SS welded pipes are available in multiple grades; each grade has a different composition for versatility. Grade choice depends on the corrosive media, operating temperature and mechanical load.
Stainless Steel 202 Welded Pipe
SS 202 is a low-cost austenitic grade distinguished by the substitution of some nickel with manganese. This composition grants it a measure of corrosion resistance and decent strength, which in turn makes it a viable choice for structural applications and general fabrication projects.
Stainless Steel 304 Welded Pipe
SS 304 welded pipes have good corrosion resistance and are easy to bend, shape, and weld. They are commonly used in food processing, chemical plants, and many general industrial applications.
Stainless Steel 304L Welded Pipe
SS 304L has a lower carbon content, which reduces welding problems like sensitisation. It fits welded structures where corrosion resistance is important without extra heat treatment after welding.
Stainless Steel 310 Welded Pipe
SS 310 gives excellent resistance to oxidation at high temperatures, up to about 1150°C. It is used for furnace parts, heat exchangers, and other high-temperature equipment.
Stainless Steel 310S Welded Pipe
SS 310S is a low-carbon version of 310. It is easier to weld and still offers strong resistance to high-temperature oxidation. It is often used in industrial areas with very high heat.
Stainless Steel 316 Welded Pipe
SS 316 has molybdenum, which improves its resistance to chloride corrosion, such as from seawater. It is widely used in marine, chemical, and pharmaceutical industries.
Stainless Steel 316L Welded Pipe
SS 316L has less carbon, which makes it easier to weld and more resistant to intergranular corrosion. It is a good choice for tough environments and welded structures.
Stainless Steel 321 Welded Pipe
SS 321 contains titanium, which helps prevent intergranular corrosion at high temperatures. It is well-suited for heat exchangers and other high-temperature piping systems.
Stainless Steel 347 Welded Pipe
SS 347 contains niobium, which improves its resistance to intergranular corrosion. It is commonly used in high-temperature and high-pressure applications.
Stainless Steel 347H Welded Pipe
SS 347H has more carbon than 347, which gives it better creep strength (resistance to slow, long-term deformation) at high temperatures. It is suitable for power plants, refineries, and other high-temperature services.
Stainless Steel Welded Pipe Types by Welding Process
Welded stainless steel pipe is produced through 3 primary welding methods. ERW, EFW, TIG and laser welding. Different processes cater to varying sizes, quality standards and financial constraints.
ERW Stainless Steel Pipe
EFW Stainless Steel Pipe
TIG and Laser Welded Stainless Steel Pipe
Industrial Applications of Stainless Steel Welded Pipes
Stainless steel welded pipes are used across 5 major industrial sectors. Grade selection depends on the corrosive media, temperature and pressure of each application.
Chemical and Petrochemical Processing
SS welded pipe carries acids, solvents, and process fluids in reactors, distillation columns and transfer lines.
Oil & Gas
Welded stainless steel pipes serve topside piping, process piping and CRA-lined flowlines in upstream and downstream operations.
Food, Beverage & Pharmaceutical
TIG-welded pipe with electropolished internals meets sanitary and hygienic piping standards for dairy, brewing and pharmaceutical processing.
Water Treatment and Desalination
Grade 316L resists chloride-induced corrosion in desalination plants, water distribution and wastewater treatment systems.
Energy and Power Generation
Welded stainless steel pipes serve boiler tubing, superheater piping, condenser systems and nuclear-grade piping at temperatures where carbon steel cannot perform.
Welded vs Seamless Stainless Steel Pipes
This table compares stainless steel seamless pipes and welded pipes so engineers and buyers can choose the right type for their needs.
| Parameter | Welded Pipe | Seamless Pipe |
|---|---|---|
| Manufacturing Process | ERW, EFW, or TIG Welded | Extruded or Pierced Billet |
| Governing Standard | ASTM A312 / ASTM A358 | ASTM A312 / ASTM A213 |
| Weld Seam | Present (Longitudinal) | Absent |
| Grain Structure | Non-uniform at weld zone | Uniform throughout |
| Dimensional Tolerance | Tighter | Wider |
| Size Range | Larger diameters available | Limited to smaller diameters |
| Wall Thickness | Thinner walls possible | Thicker walls available |
| Pressure Rating | Moderate to High | High |
| Cost | 20 to 40% lower | Higher |
| NDT Inspection | Required at the weld seam | Full body inspection |
| Preferred Applications | General industrial, food processing, water treatment | High-pressure, high-temperature critical service |
Shipping & Packaging
Heavy-duty wooden boxes Packing
We strictly follow seaworthy export handling standards to protect stainless steel welded pipe from transit damage, moisture ingress, and surface contamination during long-distance dispatch.
- Heavy-duty wooden boxes with moisture barrier lining
- HDPE stretch film wrapping on all bundles
- Plastic end caps on threaded and plain-end pipes
- Silica gel desiccants to minimize moisture exposure
- ISPM-15 fumigated wooden packaging for export
Pipe Bundle Yard Staging
Container End-Cap Protection
Wrapped Export-Ready Bundles
We Export Worldwide
Sachiya Steel International supplies stainless steel products to major industrial markets across North America, Europe, the Middle East, Asia and Africa with export-ready documentation and logistics support.
USA
Canada
Germany
UK
Italy
France
Australia
South Korea
Indonesia
Vietnam
Singapore
Malaysia
Taiwan
UAE
Saudi Arabia
Qatar
Oman
South Africa
Nigeria
Egypt