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Home > ASTM > ASTM A387 steel plate for pressure vessels

ASTM A387 steel plate for pressure vessels

Standard:ASTM A387/A387 M

Steel grade: A387 Gr 5,9,11,12 and 22 Class 1 and 2

ASTM A387 main description:
ASTM A387 steel plate specification covers molybdenum alloy, intended particularly of welded boilers and others pressure vessels steel plate in A387 Gr 5, A387 Gr 9 ,A 387 Gr 11,A387 Gr 12 and A387 Gr 22.

ASTM A387 steel plate Chemical Composition (% ) :

Grades	C max	Mn max	Si max	Mo max	Su max	Ch max	P max
A387gr5	0.15	0.25-0.66	0.55	0.40-0.7	0.030	3.9-6.1	0.035
A387gr9	0.15	0.25-0.66	1.05	0.85-1.15	0.030	7.9 – 10.1	0.030
A387gr11	0.04-0.17	0.35-0.73	0.44-0.86	0.40-0.7	0.035	0.94 – 1.56	0.035
A387gr12	0.04-0.17	0.35-0.73	0.13-0.45	0.4-0.65	0.035	0.74 – 1.21	0.035
A387gr22	0.04-0.15	0.25-0.66	0.5	0.85-1.15	0.035	1.88 – 2.62	0.035

ASTM A387 steel plate Mechanical Properties:

Grade	A 387 Grade 5		A 387 Grade 9		A 387 Grade 11			A 387 Grade 12		A 387 Grade 22
Class	Class 1	Class 2	Class 1	Class 2	Class 1	Class 2	Class 1		Class 2	Class 1	Class 2
Tensile Strength (ksi)	60-85	75-100	60-85	75-100	60-85	70-90	50-80		65-85	60-85	75-100
Tensile Strength (MPa)	415-585	515-690	415-585	515-690	415-585	485-620	380-550		450-585	415-585	515-690
Yield Strength (ksi)	30	45	30	45	35	45	33		40	30	45
Yield Strength (MPa)	205	310	205	310	240	310	230		275	205	310
Elongation in 200mm (%)					19	18	18		19
Elongation in 50mm (%)	18	18	18	18	22	22	22		22	18	18

ASTM A387 steel chief application :
ASTM A387 pressure vessel steel is widely used in petroleum, chemical industry, power station, boiler, etc, used to make the reactor, heat exchanger, separator, spherical tank, liquefied gas, nuclear reactor pressure vessel, boiler steam drum steam, liquefied petroleum, hydropower station, high pressure pipe.

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