astm a193 grade b7 qt steel round bar
$800-1100 /Metric Ton
Payment Type: | D/A |
Min. Order: | 5 Metric Ton |
$800-1100 /Metric Ton
Payment Type: | D/A |
Min. Order: | 5 Metric Ton |
Model No.: astm a193 grade b7
Selling Units | : | Metric Ton |
quenched and tempered steel round bar astm a193 grade b7
Alloy steel astm a193 grade b7 / aisi 4140 / sae 4140 / 42CrMo4 material is considered as the most suitable Alloy Steel Round Bar for botls and nuts to be used at temperature below 450 degree C, with a minimum effect on its structural strength during application at a high temperature. We produce Hot Rolled Steel Round Bar, Cold Drawn Steel Bar, Annealed Steel Round Bar and Bright Steel Round Bar.
Advantages of astmastm a193 grade b7 / aisi 4140 / sae 4140 / 42CrMo4 qt steel round bar for gr 10.9 bolts we supply:
1): Smooth surface: Smooth surface without any cracks or scales
2): Good straightness: 1mm for hot rolled + QT bars and 0.5mm for cold drawn +QT bars
3): Uniform microstructure and mechanical properties
4): Anti-rusty packages: two layers packages and load in cntainer in our factory in case rusty and package damage.
5): Fast delivery time: Within two weeks if there is stock, within one month to customize.
Detailed astm a193 grade b7 / aisi 4140 / sae 4140 / 42CrMo4 steel bar specification:
1. astm a193 grade b7 / aisi 4140 alloy steel chemical composition:
C | SI | MN | S | P | CR | MO |
0.37-0.49 | 0.15-0.35 | 0.70-1.10 | 0.035(MAX) | 0.035(MAX) | 0.75-1.20 | 0.15-0.25 |
2. astm a193 b7 / aisi 4140 alloy steel mechanical property:
Dia | Minimum temperature | Tensile strength | Yield strength | Elongation | Reduction of area | Hardness |
Below 65mm | 593 ° C | 860 | 720 | 16 | 50 | 35 HRC |
65mm to 100mm | 593 ° C | 795 | 655 | 16 | 50 | 35 HRC |
100mm to 160mm | 593 ° C | 690 | 510 | 18 | 50 | 29 HRC |
5. Production line:
6. Production Facilities:
7. Inspection:
8. Package:
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