China · Baosteel Q/BQB

15Mo3

Q/BQB 201:2003 — Q/BQB 201

Chemical composition

wt% · log scale
0.010.1110C0.12 – 0.2Cr0.25Cu0.2Mn0.4 – 0.8Mo0.25 – 0.35Ni0.25P0.025S0.02Si0.1 – 0.35
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≥270 MPaTensile strength Rm450–600 MPaElongation A≥22 %t ≤ 16mm, heat treatedYield strength Rp0.2≥270 MPaTensile strength Rm450–600 MPaElongation A≥22 %t≥16mm, heat treated

Chemical composition

ElementminmaxSimilarRemarks
C0.120.2
Cr0.25
Cu0.2
Mn0.40.8
Mo0.250.35
Ni0.25
P0.025
S0.02
Si0.10.35

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
t ≤ 16mm, heat treated≥270 当屈服现象不明显时450–600 非标准数据，仅供参考≥22 非标准数据，仅供参考
t≥16mm, heat treated≥270 当屈服现象不明显时450–600 非标准数据，仅供参考≥22 非标准数据，仅供参考