AISI 4340 steel circle delivery forms
Steel circles | |
Steel grades | Dimensions supplied (mm) |
AISI 4340 steel circle | 50 – 485 |
AISI 4340 steel circle delivery forms
Steel circles | |
Steel grades | Dimensions supplied (mm) |
AISI 4340 steel circle | 50 – 485 |
AISI 4340 steel
AISI 4340 steel chemical composition
Standard | Grade | C | Mn | P | S | Si | Ni | Cr | Mo |
ASTM A29 | 4340 | 0.38-0.43 | 0.60-0.80 | 0.035 | 0.040 | 0.15-0.35 | 1.65-2.00 | 0.70-0.90 | 0.20-0.30 |
AISI 4340 mechanical properties
Mechanical Properties ( Heat Treated Condition ) | Condition | Ruling section | Tensile Strength MPa
| Yield Strength | Elong. | Izod Impact | Brinell |
T | 250 | 850-1000 | 635 | 13 | 40 | 248-302 | |
T
| 150 | 850-1000 | 665 | 13 | 54 | 248 -302
| |
U | 100 | 930-1080 | 740 | 12 | 47 | 269-331
| |
V | 63 | 1000-1150 | 835 | 12 | 47 | 293-352 | |
W | 30 | 1080-1230 | 925 | 11 | 41 | 311-375 | |
X | 30 | 1150-1300 | 1005 | 10 | 34 | 341-401 | |
Y | 30 | 123 0-1380 | 1080 | 10 | 24 | 363-429 | |
Z | 30 | 1555- | 1125 | 5 | 10 | 444- |
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