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ASTM 321H - EN 1.4878

ASTM 321H - EN 1.4878

Stainless Steel 321H Round Bar offers excellent high-temp strength and outstanding intergranular corrosion resistance. It is an austenitic, heat-resistant chromium-nickel steel, stabilized by titanium and similar to 1.4541. This material may also be certified as 1.4878.

Equivalent grades

• ASTM 321H
• DIN 1.4878
• UNS S32109
• AISI 321H
• X8CrNiTi18-10

Chemical Composition Reference


Physical Property Reference

• Density: 7.90 g/cc

• Tensile Strength: 570 MPa

• Yield Strength: 250 MPa

• Modulus of Elasticity: 196 GPa

• Thermal Conductivity: 13.9 W/m-K

Stock & Dimensions

Our warehouse has a large number of stock to provide you with a variety of products in different sizes, and can also customize the size according to your needs.
• Bar: 0.5~600mm Diameter
• Coil: 0.5~150mm Thick
• Plate: 0.5~200mm Thick
• Pipe: 6~630mm External Diameter; 0.5~40mm Wall Tick
• Available in specific sizes

Product Forms

We provide you with a variety of product forms, including but not limited to:
• Bar/Rod
• Pipe/Tube
• Coil/Strip
• Plate/Sheet/Circle
• Wire
• Fitting (Flange, Elbow, Tee...)
• Customize

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ASTM 321H - EN 1.4878

Essential details
Stainless Steel 321H Round Bar is a type of austenitic stainless steel that has a high-temperature strength and resistance to intergranular corrosion. It contains higher amounts of carbon, as well as titanium and other alloys, providing improved formability and weldability compared to the standard 304-grade stainless steel.

The alloy has a higher oxidation resistance when exposed to elevated temperatures and can be used in both hot and cold applications. Stainless Steel 321H Round Bars are often used in aircraft exhaust manifolds, chemical processing equipment, petroleum refining equipment, etc.


- Aerospace(Piston Engine Manifolds)

- Chemical Processing

- Expansion Joints

- Food Processing(Equipment or Storage)

- Waste Treatment (Thermal Oxidizers)

- Pharmaceutical Production

- Petroleum Reining (Polythionic Acid Services)

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