Stainless, Duplex, Super Duplex

Grade 410

UNS S41000 : 13 Cr. Stainless : ASTM A182 (VO1.01), A276 (VO1.03), A479 (VO1.03)

General scope

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

C Si Mn P S Cr Mo Fe
Min 11.50 0.00
Max 0.15 1.00 1.00 0.040 0.030 13.50 0.00

Mechanical properties

Condition: Hardened and Double Tempered

NACE MR0175 limits the supply hardness to 22 HRC max.
U.T.S 100 KSI Min (689 N/mm2)
0.2% Proof Stress 80 KSI Min (551 N/mm2)
Elongation 15 %
Red of Area 40 %
CVN Impacts @ -29°C (-20°F) 27 Joules (20 ft-lbf)
Size range: 1”∅ - 24”∅

Primarily manufactured in:

  • Dubai, UAE
  • Edmonton, Canada
  • Houston, Texas
  • Sheffield, England
  • Singapore