
AISI 304H Pipe
1. Standard: ASTM A312, ASME SA312
2. Size: 1/2''~48''
3. Thickness: SCH5~SCHXXS
4. Service: Cutting, Welding, Fabricated, Customized
HT PIPE is SGS Certified SS 304H Seamless Pipe, Welded Pipe Manufacturer, Supplier.
AISI 304H (UNS S30409) is a modified version of the "18-8" chromium-nickel austenitic stainless steel. The carbon content is controlled in the range of 0.04-0.10% to increase strength at temperatures above 800°F (427°C). Stainless Steel 304H Pipe also falls under the category of marine grade steel as it has the ability to resist corrosion from salt water.
ASTM A312 SS 304h Pipe Applications:
- Oil and gas industry
- Chemical and petrochemical industry
- Building and construction
- Exhaust systems
- Food and beverage industry
- Mining industry

ASTM A312 / ASME SA312 SS 304H Seamless Pipes
| Specification | ASTM A312 / ASME SA312 |
| Standard | ASTM, ASME and API |
| Size | 1 / 8" NB - 24" NB |
| Types | Seamless - Hot Rolled / Cold Drawn |
| Length | Single Random, Double Random & Required Length |
| Outer Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24" NB |
| Thickness | 0.3mm – 50 mm |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Types | Seamless / Cold Drawn / Hot Finish / Cold Finish |
| Form | Round Pipes, Square Pipes, Rectangular Pipe, Hot Finish Pipe, Cold Drawn pipe, |
| End | Plain End, Beveled End, Treaded |
SS 304H Tubing Tolerances
| OD | Tolerance |
|---|---|
| 4mm to 35mm | +/- 0.08mm |
| 35mm to 38mm | +/- 0.15mm |
| 38mm to 60mm | +/- 0.20mm |
| 60mm and above | +/- 0.25mm |
Our Markets
We supply high quality AISI 304H Pipe to customers in Asia and Europe, Indonesia, USA, Brazil, Russia, Saudi Arabia, Middle East, West Africa.
Manufacturing and Processing:
- Weldability: Alloy 304H stainless steel has good weldability, which can form strong and durable joints.
- Formability: 1.4948 is suitable for various manufacturing processes, including bending, cutting and forming, producing pipe fittings, flanges, etc.
- Surface treatment: Polished and reflective appearance to matte finish, etc., customized according to customer needs.
FAQ
Q: About AISI 304H Pipe price per kg?
Q: How long does your delivery time take?
Q: Is There Sample Service?
Q: What Is The Minimum Order Quantity?
Q: How to pack the products?
Q: Exported Countries
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