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NK A70 bulb flat steel bar specifications: 80× 5/6, 100× 7/8, 120× 6/7/8, 140× 7/8/10, 160× 7/8/9/11, 180× 8/9/10/11, 200× 9/10/1112, 220× 10/11/12, 240× 10/11/12, 260× 10/11/12, 280× 11/12/13, 300× 11/12/13, 320× 12/13/14, 340× 12/13/14, 370× 13/14/15, 400× 14/15/16, 430× 14/15/17/19/20
NK A70 bulb flat steel bar chemical composition:
Grade |
C max |
Si |
Mn max |
P max |
S max |
Als |
N max |
Nb max |
V max |
Ti max |
B max |
A70 |
0.21 |
0.10-0.55 |
1.7 |
0.035 |
0.035 |
0.015-0.08 |
0.20 |
0.02-0.05 |
0.04-0.10 |
0.02 |
0.005 |
NK A70 bulb flat steel bar Mechanical Property:
Grade |
Mechanical Property |
Charpy V Impact Test |
||||
Yield Min Mpa |
Tensile Mpa |
Elongation Min % |
Degree |
Energy 1 (J) |
Energy 2(J) |
|
A70 |
690 |
770-940 |
14% |
0 |
46 |
69 |
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