4340 Alloy Steel
4340 is a low alloy, nickel-chromium-molybdenum steel capable of being heat treated to high strength levels. The alloy has a good combination of ducility, toughness and strength along with high hardenability.
The Specialty Steel Products are available upon request and all stock is subject to mill availability. A Diehl Steel representative will assist all customer requests for these products.
|0.38 – 0.43||0.70 – 0.90||0.65 – 0.85||0.20 – 0.30||1.65 – 2.00||0.04 Max.||0.04 Max.||0.15 – 0.30|
Available upon request and subject to mill availability. A Diehl Steel representative will assist all customer requests for this product.
AISI 4340 Alloy Steel-US
JIS SNCM 8-Japan
B.S. 2 S 119-United Kingdom
B.S. 3 S 95-United Kingdom
B.S. 3111 Type 6-United Kingdom
B.S. 817 M 40-United Kingdom
MIL SPEC MIL-S-16974-US