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a387 grade 12 class 1 steel plate,a387 grade 12 class 1 steel plate supplier

a387 grade 12 class 1 steel plate

a387 grade 12 class 1 steel plate is a kind of Cr-Mo-alloy steel, a387 grade 12 class 1 steel is designed for use in pressure vessels and heat exchangers where there is an elevated temperature. It is described as an alloyed high temperature pressure vessel steel.

a387 grade 12 class 1 steel plate specification:

Grade: a387 grade 12 class 1 Standard: ASTM A-387/A-387M

Length: 6000mm-12500mm, Thickness: 5mm -150mm, Wide: 1500mm-4500mm

a387 grade 12 class 1 steel equivalent material: UK 621gr.A,B

a387 grade 12 class 1 steel chemical composition
Grade	The Element Max (%)
Grade	C	Si	Mn	P	S	Cr	Mo
a387 grade 12 class 1	0.04-0.17	0.13-0.45	0.35-0.73	0.035	0.035	0.74-1.21	0.40-0.65

Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

Grade	a387 grade 12 class 1 steel mechanical property
Grade	Thickness	Yield	Tensile	Elongation
a387 grade 12 class 1	mm	Min Mpa	Mpa	Min %
	t≦50	230	380-550	22
	50<t≦200	-	-	18

a387 grade 12 class 1 steel plate application:

a387 grade 12 class 1 steel plate is widely used in pressure vessel, boiler, storage tanks and heat exchanger in oil, gas project.

a387 grade 12 class 1 steel additional condition :

UT (Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered), Z Direction Test(Z15, Z25, Z35), Charpy V-Notch Impact Test, HIC test, NDT, PWHT( Simulated Post Weld Heat Treatment), NACE0175, The Third Party Test (Such as SGS Test), Coated or Shot Blasting and Painting.

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