+46-563-170 00
Low Alloy Steel typically used in wellheads, blow out preventers and other applications needing good hardenability to maintain yield strength through thick cross-sections. It can be used in limited sour environments when ordered to meet NACE MR0175 requirements for hardness max of 22 HRC.
Carbon(C) |
Manganese(Mn) |
Phosphorus(P) |
Sulfur(S) |
Silicon(Si) |
Nickel(Ni) |
Cobalt(Co) |
0.28-0.33 Max | 0.7-1.0 Max | 0.040 Max | 0.040 Max | 0.20-0.35 Max | 0.40-1.10 | – |
Chromium(Cr) |
Manganese(Mo) |
Niobium + Tantalum(Nb (Cb) + Ta) |
Titanium(Ti) |
Copper(Cu) |
Aluminum(Al) |
Iron (Fe) & Others |
0.40-1.75 | 0.15-0.50 | – | – | – | – | Fe– Balance |