Global · Enterprise standard

Docol 27MnCrB5

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Chemical composition

wt% · log scale
0.00010.0010.010.1110B0.0008 – 0.005C0.24 – 0.3Cr0.3 – 0.6Mn1.1 – 1.4P0.03S0.015Si0.4
  • min – max range
  • typical value

Mechanical properties

value range by condition
Tensile strength Rm≥1735 MPaHardnessHRCold rolled sheets, Water quenched, t = 0.70 mm - 3.00 mmTensile strength Rm≥1575 MPaHardnessHRCold rolled sheets, oil quenched, t = 0.70 mm - 3.00 mmYield strength Rp0.2≥400 MPaTensile strength Rm≥550 MPaElongation A≥25 %Cold rolled sheets, annealed, t = 0.70 mm - 3.00 mm

Chemical composition

ElementminmaxSimilarRemarks
B0.00080.005
C0.240.3
Cr0.30.6
Mn1.11.4
P0.03
S0.015
Si0.4

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
Cold rolled sheets, Water quenched, t = 0.70 mm - 3.00 mm≥1735HR ≥51 HRC
Cold rolled sheets, oil quenched, t = 0.70 mm - 3.00 mm≥1575HR ≥48 HRC
Cold rolled sheets, annealed, t = 0.70 mm - 3.00 mm≥400≥550≥25 Lo = 80 mm