Stainless Steel Welded Pipe
Stainless steel welded pipe can be used in virtually every industry thanks to its flexibility. However, they fare better in corrosion resistance as opposed to withstanding pressure. Because of the materials used and the lightweight nature of welded pipes, they’re far more cost-effective than most other piping methods and offer the best value for your money.
Our staff are qualified and certified according to all current welding procedures, thus guaranteeing our customers longitudinally welded stainless steel pipes in line with the requirements.
● Stainless steel contains chromium which provides the properties of corrosion resistance at high temperatures.
● Stainless steel can withstand corrosive or chemical environments due to its smooth surface.
● Stainless steel products are safe for long-term use with excellent resistance of corrosion fatigue.
Product Name |
Executive Standard |
Dimension |
Steel Code / Steel Grade |
Industrial Pipes |
ASTM A312, A358, A778, JIS G3459 |
OD: 1/4″~40″ |
TP304, TP304L, TP316L, SUS304TP |
Tubes for Boiler and Heat-Exchanger, General Service Tubing |
ASTM A249, A269, JIS G3463 |
OD: 15.9~139.8mm |
TP304, TP304L, TP316L, SUS304TB |
Mechanical and Structural Tubes |
ASTM A554, JIS G3446 |
OD: 7.9~152.4mm |
MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill’s STD SUS304 |
Square Tubes |
ASTM A554 |
OD: 12.7×12.7~150x150mm |
MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill’s STD |
Rectangular Tubes |
ASTM A554 |
OD: 10×20~100x200mm |
MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill’s STD |
Sanitary Tubing |
ASTM A270 |
OD: 25.4~165.2mm |
TP304, TP304L, TP316L, SUS304TBS |
Large Gauge Pipes for Ordinary Piping |
JIS G3448 |
OD: 15.88~318.5mm |
SUS304TPD |
Large Diameter Pipes |
JIS G3468 |
OD: 14″~40″ |
SUS304TPY |
Dimension Tolerances of Welded Steel Pipe
NPS Designator | Permissible Variations in Outside Diameter | |
Over In. | Under In. | |
1/8 to 1-1/2, incl. | 1/64 (0.015) | 1/32 (0.031) |
Over 1-1/2 to 4, incl. | 1/32 (0.031) | 1/32 (0.031) |
Over 4 to 8, incl. | 1/16 (0.062) | 1/32 (0.031) |
Over 8 to 18, incl. | 3/23 (0.093) | 1/32 (0.031) |
Nominal Wall Thickness:
NPS Designator | Outside Diameter in. | Schedule 5S in. | Schedule 10S in. | Schedule 40S in. | Schedule 80S in. |
1/4 | 0.54 | 0.065 | 0.088 | 0.119 | |
3/8 | 0.675 | 0.065 | 0.091 | 0.126 | |
1/2 | 0.84 | 0.065 | 0.083 | 0.109 | 0.147 |
3/4 | 1.05 | 0.065 | 0.083 | 0.113 | 0.154 |
1 | 1.315 | 0.065 | 0.109 | 0.133 | 0.179 |
1 1/4 | 1.66 | 0.065 | 0.109 | 0.14 | 0.191 |
1 1/2 | 1.9 | 0.065 | 0.109 | 0.145 | 0.2 |
2 | 2.375 | 0.065 | 0.109 | 0.154 | 0.218 |
2 1/2 | 2.875 | 0.083 | 0.12 | 0.203 | 0.276 |
3 | 3.5 | 0.083 | 0.12 | 0.216 | 0.3 |
3 1/2 | 4 | 0.083 | 0.12 | 0.226 | 0.318 |
4 | 4.5 | 0.083 | 0.12 | 0.237 | 0.337 |
5 | 5.563 | 0.109 | 0.134 | 0.258 | 0.375 |
6 | 6.625 | 0.109 | 0.134 | 0.28 | 0.432 |
8 | 8.625 | 0.109 | 0.148 | 0.322 | 0.5 |
10 | 10.75 | 0.134 | 0.165 | 0.365 | 0.5 |
12 | 12.75 | 0.156 | 0.18 | 0.375 | 0.5 |
Bar & Structural Cutting | Products cut include Round Bar, Flat bar, Hex bar, Square bar, Tubing and Hollow Bar, Pipe, Angles, channels, Beams and Tees. Thickness range is 1/16″ to 28″diameter |
Production Cutting | Stainless can provide production cutting for product diameters up to 4″. |
Pipe Threading | Available thru 2″ in Diameter/All schedules |
Tubular Polishing | Products polished included all tubular products, with OD & ID polishing available, Round Bar, Square Bar, Hex & Flat bar, Angles, Uneven Leg Angles, beams, and other shapes. |
Welded stainless steel tubes have rust resistance and excellent high temperature resistance.
Stainless steel welded pipe is corrosion resistant and this type of material is extremely durable in harsh conditions. This type of pipe is popular in industrial applications in the following industries:
● Chemical
● Food and beverage
● Marine
● Mining
● Oil and gas
● Pharmaceutical
● Petrochemical
● Power generation
● Renewable energy
Stainless steel welded pipe can be cheaper to manufacture than seamless pipe for your applications that require corrosion resistance.