美国标准承压铸钢的力学性能

等 级

型 号

力性学性能

硬性度
HBS


σb/MPa 

σ0.2/MPa 

δ
(%)  

φ(%)  

Grade1

Class A
B
C  
585～760
620～795
≥620
380
450
450
22
22
22
40
45
45
—
—
22

Grade2
Class A
B
C
585～760
620～795
≥620
365
450
450
22
22
22
35
40
40
—
—
22

Grade4
Class A
B
C
D
E
620～795
725～895
≥620
≥690
≥795
415
585
415
515
655
18
17
18
17
15

40
35
35
35
35  

—
—
22
22
—
 

Grade6
Class A
B

≥795
≥825
550
650
18
12
30
25
—
—

Grade7
Class A
≥795
690
15
30
—

Grade8
Class A
B
C
585～760
≥725
≥690
380
585
515
20
17
17
35
30
35
—
—
22

Grade9
Class A
B
C
D
E
≥620
≥725
≥620
≥690
≥795
415
585
415
515
655
18
16
18
17
15
35
35
35
35
35
—
—
—
22
—

Grade10
Class A
B
≥690
≥860

485
690
15
15
35
35
—
—

Grade11
Class A
B
485～655
725～895
275
585
20
17
35
35
—
—

Grade12
Class A
B
485～655
725～895
275
585
20
17
35
35
—
—

Grade13
Class A
B
620～795
725～895
415
585
18
17
35
35
—
—

Grade14
Class A
825～1000
655
14
30
—

Grade16
Class A
485～655
275
22
35
—

CA15
Class A
B
C
D
965～1170
620～795
≥620
≥620
760～895
450
415
515
10
18
18
17
25
30
35
35
—
—
22
22

CA15M
Class A
620～795

450
18
30

—

CA6NM
Class A
B
760～930
≥690
515
520
15
17
35
35
—
23