Astm A193 B7 Fasteners Supplier
ASTM A193 Grade B7 Bolts
A193 B7 Threaded Rod
Specification of ASTM A193 B7m Bolts
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A193 Grade B7 Bolts Dimensions
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ASME B18.2.1, B18.3
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|---|---|
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Melt Origin
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South America/East Europe/JapanKorea/
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A193 Grade B7 BoltsProduct Origin
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Made in India
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Threads Configuration
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ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads
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A193 Grade B7 Bolts Certification
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Dual Certified As per ASTM & ASME Codes
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Additional Certifications
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PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
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A193 Grade B7 Bolts Mandatory Requirements
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Free from Mercury & Radioactive Contamination
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Additional Requirements
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NACE MR0103 / MR0175 / ISO 15156 Compliance
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Most Popular Types Of A193 B7 Bolts
SA193 B7 Hex Bolts
ASTM A193 B7 Threaded Rod
ASTM A193 B7 Lag Bolts
A193 B7 Stud Bolts
ASTM A193 B7 T Nuts
SA193 B7 Wing Nuts
ASME SA193 B7 Dome Nuts
ASTM A193 Gr. B7 Flat Washers
ASTM Specifications of A193 B7 Bolts
- ASTM A193 / A193M – 16 : Specifications for High-Temperature Bolting, with Expansion Coefficients Comparable to Austenitic Stainless Steels
- ASTM A1082 / A1082M – 16 : Specifications for High Strength Precipitation Hardening and Duplex Stainless Steel Bolting for Special Purpose Applications
- ASTM F2281 : Specifications for Stainless Steel and Nickel Alloy Bolts, Hex Cap Screws, and Studs, for Heat Resistance and High Temperature Applications Designation
- ASTM A1014 / A1014M – 16 : Specifications for Precipitation-Hardening Bolting (UNS N07718) for High Temperature Service
- ASTM A962 / A962M – 16a : Specifications for Common Requirements for Bolting Intended for Use at Any Temperature from Cryogenic to the Creep Range
- ASTM A638 / A638M : Specifications for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service
ASTM A193 B7 Hex Bolt Dimension Chart
Diameter (D) |
Body Diameter (D) |
Across the Flats (F) |
Across the Corners © |
Head Height (H) |
Thread Lengths (T) |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
MAX |
MIN |
MAX |
MIN |
MAX |
MIN |
MAX |
MIN |
< 6” |
> 6” |
|
1/2 |
0.515 |
0.482 |
0.875 |
0.85 |
1.01 |
0.969 |
0.364 |
0.302 |
1.25 |
1.5 |
5/8 |
0.642 |
0.605 |
1.062 |
1.031 |
1.227 |
1.175 |
0.444 |
0.378 |
1.5 |
1.75 |
3/4 |
0.768 |
0.729 |
1.25 |
1.212 |
1.443 |
1.383 |
0.524 |
0.455 |
1.75 |
2 |
7/8 |
0.895 |
0.852 |
1.438 |
1.394 |
1.66 |
1.589 |
0.604 |
0.531 |
2 |
2.25 |
1 |
1.022 |
0.976 |
1.625 |
1.575 |
1.876 |
1.796 |
0.7 |
0.591 |
2.25 |
2.5 |
1 1/8 |
1.149 |
1.098 |
1.812 |
1.756 |
2.093 |
2.002 |
0.78 |
0.658 |
2.5 |
2.75 |
1 1/4 |
1.277 |
1.223 |
2 |
1.938 |
2.309 |
2.209 |
0.876 |
0.749 |
2.75 |
3 |
1 3/8 |
1.404 |
1.345 |
2.188 |
2.119 |
2.526 |
2.416 |
0.94 |
0.81 |
3 |
3.25 |
1 1/2 |
1.531 |
1.47 |
2.375 |
2.3 |
2.742 |
2.622 |
1.036 |
0.902 |
3.25 |
3.5 |
1 3/4 |
1.785 |
1.716 |
2.75 |
2.662 |
3.175 |
3.035 |
1.196 |
1.054 |
3.75 |
4 |
2 |
2.039 |
1.964 |
3.125 |
3.025 |
3.608 |
3.449 |
1.388 |
1.175 |
4.25 |
4.5 |
2 1/4 |
2.305 |
2.214 |
3.5 |
3.388 |
4.041 |
3.862 |
1.548 |
1.327 |
4.75 |
5 |
2 1/2 |
2.559 |
2.461 |
3.875 |
3.75 |
4.474 |
4.275 |
1.708 |
1.479 |
5.25 |
5.5 |
2 3/4 |
2.827 |
2.711 |
4.25 |
4.112 |
4.907 |
4.688 |
1.869 |
1.632 |
5.75 |
6 |
3 |
3.081 |
2.961 |
4.625 |
4.475 |
5.34 |
5.102 |
2.06 |
1.815 |
6.25 |
6. |
ASTM A193 Grade B7 Bolt Sizes
A193 grade b7 bolt Torque Chart
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A193 Grade B7 Bolts Size
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TPI
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Proof Load (lbs)
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Clamp Load (lbs)
|
Tightening Torque (ft lbs)
Galv + Wax |
Tightening Torque (ft lbs)
Galv |
Tightening Torque (ft lbs)
Plain |
|---|---|---|---|---|---|---|
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1/4"
|
20
|
3,350
|
2,513
|
5
|
13
|
10
|
|
5/16"
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18
|
5,500
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4,125
|
11
|
27
|
21
|
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3/8"
|
16
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8,150
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6,113
|
19
|
48
|
38
|
|
7/16"
|
14
|
11,150
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8,363
|
30
|
76
|
61
|
|
1/2"
|
13
|
14,900
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11,175
|
47
|
116
|
93
|
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9/16"
|
12
|
19,100
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14,325
|
67
|
168
|
134
|
|
5/8"
|
11
|
23,750
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17,813
|
93
|
232
|
186
|
|
3/4"
|
10
|
35,050
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26,288
|
164
|
411
|
329
|
|
7/8"
|
9
|
48,500
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36,375
|
265
|
663
|
530
|
|
1"
|
8
|
63,650
|
47,738
|
398
|
995
|
796
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Chemical Composition of Astm A193 Grade B7 Stud Bolts
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Element
|
B7 (AISI 4140)
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|---|---|
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Carbon
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0.38 - 0.48%
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Manganese
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0.75 - 1.00%
|
|
Phosphorus, max
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0.035%
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Sulfur, max
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0.040%
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Silicon
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0.15 - 0.35%
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Chromium
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0.80 - 1.10%
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Nickel
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|
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Molybdenum
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0.15 - 0.25%
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A193 B7 Threaded Rod Mechanical Behaviour
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Grade
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Size
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Tensile ksi, min
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Yield, ksi, min
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Elong, %, min
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RA % min
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HBW
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HRC
|
|---|---|---|---|---|---|---|---|
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B7
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Up to 2-1/2
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125
|
105
|
16
|
50
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321 max
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35 max
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2-5/8 - 4
|
115
|
95
|
16
|
50
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|||
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4-1/8 - 7
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100
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75
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18
|
50
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