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SUPER-AUSTENITIC STAINLESS

254 SMO equivalents, chemistry & properties.

Browse reference information for 254 SMO, including related designations, composition, mechanical properties and density. Confirm the governing standard, product form and condition for your order.

254 SMO equivalent grades

USA (ASTM / AISI / SAE)
ASTM A240 S31254 · A182 F44
UNS
S31254
Europe (EN)
X1CrNiMoCuN20-18-7
Werkstoff No. (W.Nr)
1.4547
China (GB)
015Cr20Ni18Mo6CuN

Key data

Family
Super-austenitic stainless
Density
8 g/cm³
Typical mechanical
TS ≥650 MPa · YS ≥300 MPa
Typical uses
Seawater cooling, desalination
Weight
Calculate weight in 254 SMO

254 SMO chemical composition (weight %)

CSiMnPSCrNiMoCuN
≤0.020≤0.80≤1.00≤0.030≤0.01019.5–20.517.5–18.56.0–6.50.50–1.000.18–0.25

Grades similar to 254 SMO

Frequently asked questions

What is the equivalent of 254 SMO?

254 SMO equivalents: USA (ASTM / AISI / SAE) ASTM A240 S31254 · A182 F44; UNS S31254; Europe (EN) X1CrNiMoCuN20-18-7; Werkstoff No. (W.Nr) 1.4547; China (GB) 015Cr20Ni18Mo6CuN. Equivalents are close but not always identical; check the standard on your order.

What is the chemical composition of 254 SMO?

254 SMO: C ≤0.020, Si ≤0.80, Mn ≤1.00, P ≤0.030, S ≤0.010, Cr 19.5–20.5, Ni 17.5–18.5, Mo 6.0–6.5, Cu 0.50–1.00, N 0.18–0.25 (weight %).

What is the density of 254 SMO?

About 8 g/cm³ (8,000 kg/m³), the value used for weight calculations.

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Mill test certificate (EN 10204 3.1) supplied with material; third-party inspection on request.

Need 254 SMO?

Steel Impex India, Mumbai, supplies 254 SMO in pipes, plates, sheets, bars and fittings as available. Send the grade, standard, size and quantity.