ASTM A193 Grade B7M Stud Bolts
G41400
ASTM A193 Grade B7M Bolts are manufactured from 4140 Alloy Steel in accordance with ASTM A193 specification. Torqbolt is a prominent A193 gr B7M bolt supplier in India.
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ASTM A193 Grade B7M Stud Bolts Properties
ASTM A193 Grade B7M Stud Bolts Chemical Requirements
Ferritic Steels
| Grade | Description and
UNS Designation |
C | Mn | P | S | Si | Cr | Mo | V | Al |
|---|---|---|---|---|---|---|---|---|---|---|
| ASTM A193 Grade B7M | Cr-MoC | 0.38-0.48D | 0.75-1.00 | 0.035 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 | . . . | . . . |
| Product Analysis VariationB | 0.02 | 0.04 | 0.005 | 0.005 | 0.02 | 0.05 | 0.02 | . . . | . . . |
ASTM A193 Grade B7M Stud Bolts Mechanical Requirements
Ferritic Steels (Metric)
| Class | Diameter,
[mm] |
Min.Tempering
Temp. °C |
Tensile Strength,
min, MPa |
Yield Strength,min,
.2% offset, MPa |
Elongation in 4D,
min, % |
Reduction of Area, min, % | Hardness,
max |
|---|---|---|---|---|---|---|---|
| ASTM A193M Grade B7MA Cr-Mo |
M100 and under | 620 | 690 | 550 | 18 | 50 | 235 HBW or 99 HRB |
| over M100 to M180 | 620 | 690 | 515 | 18 | 50 | 235 HBW or 99 HRB |