Chrome Moly Steel

ASTM/ASME

A/SA387 Gr 5 | 9 | 11 | 12 | 22 | 91

Designation 387 steel is a chromium-molybdenum alloy steel plate for use in elevated temperature conditions.

Heat Treatment

Excluding Grade 91, all plates are thermally treated either by annealing, normalizing & tempering, or by the customers request accelerated cooling from the austenitizing temperature by air blasting or liquid quenching.

Common delivery conditions

Addtional testing along with third party inspection can be arranged at the customer's request.

Chemical Compositions

Percentage %
C Si Mn P S Al Cr Cu Ni Mo Ti V Zr
A/SA387 Gr 5 0.15 0.55 0.25 / 0.66 0.025 0.025 - 3.9 / 6.1 - - 0.4 / 0.7 - - -
A/SA387 Gr 9 0.15 1.05 0.25 / 0.66 0.025 0.025 - 7.9 / 10.1 - - 0.85 / 1.15 - 0.05 -
A/SA387 Gr 11 0.04 / 0.17 0.44 / 0.86 0.35 / 0.73 0.025 0.025 - 0.94 / 1.56 - - 0.4 / 0.7 - - -
A/SA387 Gr 12 0.04 / 0.17 0.13 / 0.45 0.35 / 0.73 0.025 0.025 - 0.75 / 1.21 - - 0.4 / 0.65 - - -
A/SA387 Gr 22 0.04 / 0.15 0.5 0.25 / 0.66 0.025 0.025 - 1.88 / 2.62 - - 0.85 / 1.15 - - -
A/SA387 Gr 91 0.06 / 0.15 0.18 / 0.56 0.25 / 0.66 0.025 0.012 0.02 7.9 / 9.6 0.05 / 0.11 0.43 0.8 / 1.1 0.01 0.16 / 0.27 0.01

Please note that all values are typical, for more detail please contact us directly.

Mechanical Values

Properties Value
A/SA387 Gr 5 Tensile Strength (N/mm2) 515 / 690
Yield Stress / min (N/mm2) 310
A/SA387 Gr 9 Tensile Strength (N/mm2) 515 / 690
Yield Stress / min (N/mm2) 310
A/SA387 Gr 11 Tensile Strength (N/mm2) 515 / 690
Yield Stress / min (N/mm2) 310
A/SA387 Gr 12 Tensile Strength (N/mm2) 510 / 650
Yield Stress / min (N/mm2) 335
A/SA387 Gr 22 Tensile Strength (N/mm2) 515 / 690
Yield Stress / min (N/mm2) 310
A/SA387 Gr 91 Tensile Strength (N/mm2) 585 / 760
Yield Stress / min (N/mm2) 415

Supply Range

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Downloads

Chemical & Mechanical analysis of A/S387....

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