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

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

As rolled
Normalized
Stress relieved

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

Chrome Moly Steel

ASTM/ASME