SAPH310 SAPH370 SAPH400 SAPH440 steel
JIS G 3131-1996
Hot rolled Mild steel plates,sheets and strip
SAPH310 /SAPH370/ SAPH400 /SAPH440 Chemical composition unit%
Symbol |
Chemical composition |
|
P |
S |
|
SAPH310,SAPH370,SAPH400,SAPH440 |
0.040 |
0.040 |
SAPH310/ SAPH370 /SAPH400/ SAPH440 Mechanical properties
Symbol |
Elongation (rolling direction)% |
Bendability |
||||||||
NO.5 test piece |
No.1A test piece |
|||||||||
≥1.6 <2mm |
≥2.0 <2.5mm |
≥2.5 |
≥3.15 |
≥4.0 |
≥ |
Bending angle |
Inside Radius |
Test piece |
||
<2.0mm |
≥2.0 |
|||||||||
SAPH310 |
33 |
34 |
36 |
38 |
40 |
26 |
180° |
Flat on itself |
Thickness x 1.0 |
No.3 transversely to rolling direction |
SAPH370 |
32 |
33 |
35 |
36 |
37 |
25 |
180° |
-Thickness x 0.5 |
Thickness x 1.0 |
|
SAPH400 |
31 |
32 |
34 |
35 |
36 |
24 |
180° |
Thickness x 1.0 |
-Thickness x 1.0 |
|
SAPH440 |
29 |
30 |
32 |
33 |
34 |
22 |
180° |
Thickness x 1.0 |
Thickness x 1.5 |
Symbol |
Tensile strength N/mm2 min |
Yield point N/mm2 |
||
<6 |
≥6 <8mm |
≥8 <14mm |
||
SAPH310 |
310 |
195 |
195 |
175 |
SAPH370 |
370 |
225 |
225 |
215 |
SAPH400 |
400 |
255 |
235 |
235 |
SAPH440 |
440 |
305 |
295 |
275 |
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