1) Classification 分类
 
Classification 分类 KS JIS ASTM EN
D 3506 G 3302 A653 1,014,210,147
commercial quality CQ SGCC SGCC CS DX51D
lock forming quality SGCD1 SGCD1 CS DX51D
drawing quality DQ SGCD2 SGCD2 FS DX52D
deep drawing quality SGCD3 SGCD3
deep drawing special killed DDQ SGCD3-N SGCD3-N DDS DX53D
structural quality SQ SGC340∼570 SGC340∼570 GRADE230 ∼550 S220∼S550
SGH 35 ~ 58
2) Mechanical Property (机械性能)
Classification
(等级)
Type Yield Point Tensile Strength Elongation (%) Test Piece
(N/mm2) (N/mm2) Thickness (mm)
0.25~ 0.40~ 0.60~ 1.0~ 1.6~ 2.5
0.4 0.6 1 1.6 2.5 over
KS D 3506 /JIS G 3302 SGCC No.5 CutIn
SGCD1 270 34 36 37 38 RollingDirection
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
SGC490 365 490 16 16 16 16 16 16
SGC570 560 570
ASTM CS Type A 170 20 Cu shall
CS Type B 205 20 not exceed
CS Type C 170 15 0.50% on
FS Type A 170/240 26 heat analysis
FS Type B 170/240 26
DDS 140/170 32
EDDS 105/170 40
Gr230 (Gr-A) 230 310 20
Gr255 (Gr-B) 255 360 18
Gr275 (Gr-C) 275 380 16
Gr340 C1 (Gr-D) 340 450 12
Gr550 (Gr-E) 570 570 12
Gr340 C3 (Gr-F) 480 480 12
※ In case of using cold rolled steel sheets (以冷轧板为基准)