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
Min.....11.50.0.00
Max0.151.001.000.0400.03013.50.0.00

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)