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A515gr55,60,65,70 steel

A515gr55/60/65/70 steel plate, ASTM A515gr55/60/65/70 steel plate, under ASTM standard, we can regard A515gr55/60/65/70 steel plate as Steel for Boilers and Pressure Vessels
A515gr55/60/65/70 steel plate
is one mainly of Steel for Boilers and Pressure Vessels, A515gr55/60/65/70 covers steel plates of intermediate tensile strength for pressure vessels to be operated at intermediate or higher temperatures. The four grades offer excellent combinations of strength, weldability and toughness to permit designers flexibility in the design of pressure vessels coming under the jurisdiction of the ASME Pressure Vessel Code.

Grade Thickness
(t) mm
Chemical Composition % Tensile Test
C Si Mn P S Yield strength ksi(N/mm²) Elongation
Test piece
Grade 60 t≦25.4 0.24 0.15

0.40
0.90
max
0.035
max
0.035
max
32 (220) min 60~80
(415~550)
GL=8(200)
GL=2(50)
21 min
25 min
25.4<t≦50.8 0.27
50.8<t≦101.6 0.29
Grade 65 t≦25.4 0.28 35 (240) min 65~85
(450~585)
GL=8(200)
GL=2(50)
19 min
23 min
25.4<t≦50.8 0.31
50.8<t≦101.6 0.33
Grade 70 t≦25.4 0.31 1.20
max
38 (260) min 70~90
(485~620)
GL=8(200)
GL=2(50)
17 min
21 min
25.4<t≦50.8 0.33
50.8<t≦101.6 0.35