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What material is 1.4845 equivalent to?

What Is X8CrNi25-21 / 1.4845 / 310S Stainless Steel?

X8CrNi25-21 (material number 1.4845) is the EN designation for AISI 310S, a heat-resistant austenitic stainless steel with high chromium (~25%) and nickel (~20%) content. It offers outstanding oxidation resistance, thermal stability, and scaling resistance up to 1100–1150°C.

Equivalent Grades of 1.4845 / 310S Stainless Steel

Standard Equivalent Grade
EN (Europe) 1.4845 / X8CrNi25-21
AISI / ASTM 310S
UNS S31008
JIS (Japan) SUS310S
GB (China) 0Cr25Ni20 / 06Cr25Ni20
BS (UK) 310S31
ISO X8CrNi25-21

 310S Stainless Steel Composition (Typical, %)

Element Content (%)
C ≤ 0.08
Cr 24.0 – 26.0
Ni 19.0 – 22.0
Mn ≤ 2.00
Si ≤ 1.50
P ≤ 0.045
S ≤ 0.030
Fe Balance

What is the standard of 310S Stainless Steel?

Grade : X8CrNi25-21
Number: 1.4845
Classification: Austenitic heat-resisting steel
Density: 7.9 g/cm ³
Standard:
EN 10095: 1999 Heat Resisting Steels and Nickel Alloys
EN 10296-2: 2005 Welded circular steel tubes for mechanical and general engineering purposes. Stainless steel. Technical delivery conditions
EN 10297-2: 2005 Seamless circular steel tubes for mechanical and general engineering purposes. Stainless steel. Technical delivery conditions
EN 10088-1: 2005 Stainless steels. List of stainless steels

What is the difference between 310 (1.4842)and 310S(1.4825)?

Both 310 and 310S are 25Cr-20Ni high chromium nickel austenitic stainless steels. The main difference lies in the carbon content (310≤0.25%, 310S≤0.08%). 310S has significantly improved high-temperature intergranular corrosion resistance and weldability due to its low carbon characteristics, and is more suitable for high-temperature equipment such as industrial furnace components that require frequent welding; 310 has slightly higher room temperature strength in non-welding scenarios due to its higher carbon content. Both can exhibit excellent oxidation resistance above 1000℃.

 

310S Stainless Steel Product Form

310S Seamless and Welded Pipes

1.4845 Stainless Steel Plates & Sheets

X8CrNi25-21 Rods, Bars, Fittings

Custom polished or pickled surface (Ra ≤ 0.8μm)

All products are available with EN 10204 3.1/3.2 MTC, and certifications like PED, DNV, TUV upon request.These products are available in a wide variety of sizes. For detailed specifications and product information, please visit the following website.
Products:https://www.gneestainless.com/

 

We offer cut-to-size 1.4845 stainless steel pipes and plates with competitive pricing, fast delivery, and full traceability.

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