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ASTM A387 Gr11 Cl.1 steel plate

A387 Grade 11 Class 1 is a chromium molybdenum alloy steel plates intended primarily for welded boiler and pressure vessels designed of elevated temperature service.

A387 Grade 11 Class 1 Steel dimension:
Thickness: 6MM to 300MM,
Width: 1500mm to 4050mm,
Length: 3000mm to 15000mm

A387 Grade 11 Class 1 steel chemical composition:

C

Si

Mn

P

S

Mo

Cr

0.04-0.17

0.44-0.86

0.35-0.73

0.035

0.035

0.40-0.70

0.94-

A387 Grade 11 Class 1 Mechanical property:

ASTMA387

Mechanical Requirements

Hardness

 

Tensile Strength Apa (ksi) min

Yield Strength Mpa (ksi)min

Elongation min%

Brinel max HB

Rockwell max HRB

Grade

Class 1

Class 2

Class1

Class2

Class1/2

Class1/2

Class1/2

11

415-585

515-690

240

310

22

217

95

A387 Grade 11 Class 1 is a kind of Cr-Mo-alloy steel plate material used to fabric high temperature pressure vessels.

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