Grau

Direção Ensaio
Tração

Limite de
Escoamento
(MPa)

Limite de
Resistência
(MPa)

Alongamento，%  L₀=50mm,b=12.5mm (L₀=2in,b=0.5in)

Mpa

KSI

Mpa

KSI

CSA

170~380

25~55

/

/

20

CSB

205~380

30~55

/

/

20

CSC

170~410

25~60

/

/

15

FSA、FSB

170~310

25~45

/

/

26

DDSA

140~240

20~35

/

/

32

DDSC

170~280

25~40

/

/

32

EDDS

105~170

15~25

/

/

40

SS33（SS230）

>=230

>=33

>=310

>=45

20

SS37（SS255）

>=255

>=37

>=360

>=52

18

SS40（SS275）

>=275

>=40

>=380

>=55

16

SS50（SS340)-1

>=340

>=50

>=450

>=65

12

SS50(SS340)-2

/

/

SS50(SS340)-3

>=480

>=70

SS50(SS340)-4

>=410

>=60

SS55(SS380)

>=380

>=55

>+480

>=70

11

SS80(SS550)-1

>=550

>=80

>=570

>=82

/

SS80(SS550)-2

Alongamento　A₈₀  %，≥

DX51D

/

270~500

22

DX52D

140~300

270~420

26

DX53D

140~260

270~380

30

DX54D

120~220

260~350

36

S220GD

>=220

>=300

20

S250GD

>=250

>=330

19

S280GD

>=280

>=360

18

S300GD

>=300

>=380

17

S320GD

>=320

>=390

17

S350GD

>=350

>=420

16

S550GD

>=550

>=560

/

Alongamento　A₅₀，%

b=25mm）≥

≥

＜0.4

0.4~＜0.6

0.6~＜1.0

1.0~＜1.6

1.6~＜2.5

≥2.5

SGCC

—

—

—

—

—

—

—

—

SGCD1

—

270

—

34

36

37

38

—

SGCD2

—

270

—

36

38

39

40

—

SGCD3

—

270

—

38

40

41

42

—

SGC340

245

340

20

20

20

20

20

20

SGC400

295

400

18

18

18

18

18

18

SGC440

335

440

18

18

18

18

18

18

Limite de
Resistência
(MPa)

Alongamento　A₅₀，%

B=25mm

SGHC

—

—

—

SGH340

245

340

≥20

SGH400

295

400

≥18

SGH440

335

440