GRADE 410

Stainless, Duplex, Super Duplex

UNS S41000 : 13 CR. STAINLESS : ASTM A182, A276, A479

GENERAL SCOPE

UNS S41000 is a Martensitic Stainless Steel often utilised in valve bodies, bonnets, end and outlet connections and valve seat facings.

It is mainly utilised in standard or CO2 environments. Care must be exercised when exposed to sour environments containing H2S.

The grade is approved by NACE MR0175 subject to a maximum hardness requirement of 22 HRC and it being supplied in the hardened and double tempered condition.

CHEMICAL COMPOSITION

CSiMnPSCrMoFe
Max.....11.50.0.00
Min0.151.001.000.0400.03013.50.0.00

MECHANICAL PROPERTIES

Condition: Hardened and Double Tempered
U.T.S100 KSI Min(689 N/mm2)
0.2% Proof Stress80 KSI Min(551 N/mm2)
Elongation15 %
Red of Area40 %
CVN Impacts @ -29°C (-20°F)27 Joules(20 ft-lbf)