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
| 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
| 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) |