A312 Stainless Steel

A312 Stainless Steel Pipe is made of austenitic stainless steel and conforms to the ASTM A312 American standard. It can be manufactured as a seamless or welded pipe according to customer requirements. It offers excellent corrosion resistance, high tensile strength, and fatigue resistance, making it widely used in high-temperature and general service applications.

Outer Diameter: 5mm-420mm (customizable)
Wall Thickness: 0.5mm-55mm (customizable)
Length: Can be customized upon request
Steel Grade:TP XM-19 TP XM-10 TP XM-11 TP XM-15 TPXM-29 304 304L 304H 304LN 316 316L 316LN 317 321 347 348

Products Description

our Advantages

In the chemical industry, A312 stainless steel pipe effectively resists corrosion from various corrosive media, including acids, alkalis, and salts, resulting in a long service life and low maintenance requirements.
In the oil and gas industry, A312 stainless steel pipe withstands the harsh conditions of high temperature, high pressure, and corrosive media encountered during extraction, refining, and transportation.
In the power generation sector, A312 stainless steel pipe exhibits high tensile strength and creep resistance at high temperatures, ensuring the safety and durability of boiler pipes, steam lines, and heat exchangers.

applications areas

Chemical and petrochemical industries: heat exchangers and condensers, process piping for corrosive chemicals, acids, and solvents.
Oil and gas industries: transportation of oil, natural gas, and corrosive fluids at high temperatures and pressures, as well as refinery process piping.
Power generation: boiler piping and superheaters.
Pulp and paper industries: bleach plants, digesters, and chemical recovery systems.

Chemical Composition

Element	Carbon	Manganese	Silicon	Phosphorus	Sulfur	Chromium	Nickel	Molybdenum	Nitrogen
304	≤0.08	≤2.00	≤1.00	≤0.045	≤0.03	18–20	8–11	–	≤0.10

Mechanical Properties

Property	Tensile Strength	Yield Strength	Elongation	Hardness	Impact Toughness
304	≥ 515 MPa	≥ 205 MPa	≥ 40%	≤ 201 HB	Excellent

Possible Alternative Grades

ASTM A213 / A269 Stainless Steel Tubes – for smaller-diameter or precision tubing applications
Duplex 2205 / Super Duplex 2507 – higher strength and chloride stress corrosion resistance
Alloy 20 (UNS N08020) – for acid-resistant applications