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ASTM A193 Grade B7 Hex Bolts

Alloy Steel B7 Studs and SA 193 gr b7 Threaded Rod Manufacturer In India

ASTM A193 B7 Bolts

ASTM A193 B7 Bolts

ASME SA 193 B7m Hex Bolts

ASME SA 193 B7m Hex Bolts

ASTM A193-B7 Stud Bolts

ASTM A193-B7 Stud Bolts

ASTM A193 B7 Fasteners

ASTM A193 B7 Fasteners

A193 Gr. B7 Threaded Rod

A193 Gr. B7 Threaded Rod

ASTM A193 Grade B7 Nuts

ASTM A193 Grade B7 Nuts

Manufacturer and exporter of ASTM A193 gr B7 stud bolts according to DIN standard 939, 938, 940 and 835.


ASTM A193 B7 Bolts Chemical Composition

Element B7 (AISI 4140)
Carbon 0.38 - 0.48%
Manganese 0.75 - 1.00%
Phosphorus, maximum 0.035%
Sulfur, maximum 0.040%
Silicon 0.15 - 0.35%
Chromium 0.80 - 1.10%
Nickel
Molybdenum 0.15 - 0.25%

Check Grade b7 steel fasteners and bolting material dimensions, torque chart and price list ex Mumbai.


ASTM A193 B7 Hex Bolts Mechanical Properties

Grade Size Tensile ksi, min Yield, ksi, min Elong, %, min RA % min HBW HRC
B7 Up to 2-1/2 125 105 16 50 321 maximum 35 maximum
2-5/8 - 4 115 95 16 50
4-1/8 - 7 100 75 18 50

ASTM A193 B7m Bolts Size Chart

astm a193 b7m bolts size chart

ASTM A193 B7 Threaded rod Specification List

Grades ASTM A193 B7 Bolts
Standard ASTM A193
Size Dia 1.6mm to 100 millimeter Inch 3/4" to 3.1/2"
finish Hot dip galvanised / Zinc plated / Plain

ASTM A193 B7 Heavy Hex Bolts Dimensions Chart

ASTM A193 B7 Heavy Hex Bolts Dimensions Chart

Diameter Of (D) Body Diameter Of (D) Across the Flats Of (F) Across the Corners © Head Height Of (H) Thread Lengths Of (T)
Maximum Minimum Maximum Minimum Maximum Minimum Maximum Minimum < 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 6.5

Looking for Grade B7 Bolts manufacturers? Producing SA 193 b7 Flange Bolts, anchor bolt, hex nuts, and B7 steel Heavy Hex Bolts in custom configurations.

Torque Chart Astm A193 Grade B7 Studs

Diameter Of Bolt Size Of Nut Moly Lube Nickels Lube Coppers Lube Machine Oil Dry
    u=0.085 u=0.110 u=0.100 u=0.160 u=0.400
3/4" 1-1/4" 208 342 314 448 1118
7/8" 1-7/16" 330 544 500 716 1786
1" 1-5/8" 490 810 746 1066 2664
1-1/8" 1-13/16" 702 1170 1076 1544 3888
1-1/4" 2" 966 1622 1492 2150 5440
1-3/8" 2-3/16" 1288 2180 2000 2894 7356
1-1/2" 2-3/8" 1674 2850 2614 3792 9274
1-5/8" 2-9/16" 2142 3668 3364 4890 12520
1-3/4" 2-3/4" 2676 4602 4218 6144 15776
1-7/8" 2-15/16" 3292 5682 5204 7596 19550
2" 3-1/8" 3994 6920 6334 9260 23884
2-1/8" N/A 4790 8324 7618 11150 28816
2-1/4" 3-1/2" 5686 9906 9068 13282 34382
2-3/8" N/A 6686 11676 10678 15668 40620
2-1/2" 3-7/8" 7796 13646 12476 18324 47536
2-3/4" 4-1/4" 9382 16488 15066 22170 57692
3" 4-5/8" 13974 21464 19606 28894 75340
3-1/4" 5" 15470 27352 24976 36856 96258
3-1/2" 5-3/8" 19312 34226 31244 46158 120730
3-3/4" 5-3/4" 23742 42168 38482 56906 149032
4" 6-1/8" 27262 48590 44324 65652 172292
4-1/4" 6-1/2" 28802 51248 46758 69206 181440
4-1/2" 6-7/8" 32348 57742 52664 78058 205026

Manufacturer of Alloy Steel ASTM A193 Grade B7 Bolts and Nuts as per ISO 8839 standards.

ASTM A193 Grade B7 Metric Equivalent

Grade Diameter Tensile ksi, minimum Yield, ksi, minimum Elong, %, minimum RA % minimum HBW HRC
B7 Up to 4 100 80 18 50 235 maximum -
Over 4 - 7 100 75 18 50

About Company

We Are EIL And IBR Approved Manufacturer, Exporter, Stockholder, Traders, Dealer, Importer, Wholesaler, Distributor, Supplier of Industrial Pipe Fittings & Flanges, Forgings And Fasteners In Mumbai, India.


Our Official Address

153 / 154, “A” Wing, Siddheshdeep Tower,
Shop No. A-28, Ground Floor, P.B. Marg, Near Navjivan Society,
Mumbai– 400 008 (India).


Telephone & Fax No.

Tel Number : +91 - 22 - 6743 7342,
+91 - 22 - 6659 5135
Fax Number : +91 - 22 - 66595135

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