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12-07-2017

ASTM A193 Grade B7 Bolts

 We have a newly stock of the stud bolts, material A193 B7 Bolts + A194 2H Nuts, surface with Hot Dip Galvanized. See attached inspection

pictures & price list, ready for shipment, please do not hesitate to let us know if you need or any part of this list.

HDG A193 B7 A194 2H  Stud bolt stock list on sale

Astm-a193-grade-B8-class-2-BoltsA193 Grade B7 Class Bolts are manufactured from AISI 4140/4142 low Carbon Alloy Steel Grades followed by quencing & tempering. We manufacture these Bolts with great precision & Quality. These grade bolts are also denoted as Grade 7 Bolts,B7 Bolts etc. We Also offer B7 Studs/B7 threaded bars/B7 Threaded rods.TorqBolt Stocks & Supply these Bolt Fasteners in various sizes & Coatings.

For quick Quote on A193 Grade B7 Bolts/Studs, please contact our Sales team.

Related keywords for ASTM A93 B7 Bolts : A193 B7 Bolts,Grade B7 Bolts,A193 Grade B7,SA 193 B7 bolts,B7 Studs,B7 Studs Material,B7 Threaded Rod,B7 Threaded Bar etc

B7
 Alloy steel, AISI 4140/4142 quenched and tempered
B8
 Class 1 Stainless steel, AISI 304, carbide solution treated.
B8M
 Class 1 Stainless steel, AISI 316, carbide solution treated.
B8
 Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened
B8M
Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened
B16
 A heat-treated chromium-molybdenum-vanadium steel for high-pressure, high-temperature service.

Mechanical Properties
Bolt -Grade Identification Markings

Grade Size Tensile ksi, min Yield, ksi, min Elong, %, min RA % min
B7 Up to 2-1/2 125 105 16 50
2-5/8 - 4 115 95 16 50
4-1/8 - 7 100 75 18 50
B8 Class 1 All 75 30 30 50
B8M Class 1 All 75 30 30 50
B8 Class 2 Up to 3/4 125 100 12 35
7/8 - 1 115 80 15 35
1-1/8 - 1-1/4 105 65 20 35
1-3/8 - 1-1/2 100 50 28 45
B8M Class 2 Up to 3/4 110 95 15 45
7/8 - 1 100 80 20 45
1-1/8 - 1-1/4 95 65 25 45
1-3/8 - 1-1/2 90 50 30 45
B16 Up to 2-1/2 125 105 18 50
2-5/8 - 4 110 95 17 45
4-1/8 - 7 100 85 16 45

Material Chemical Composition

Element B7 (AISI 4140) B8 (AISI 304) B8M (AISI 316) B16 (AISI 4140)
Carbon 0.37 - 0.49% 0.08% max 0.08% max 0.37 - 0.49%
Manganese 0.65 - 1.10% 2.00% max 2.00% max 0.65 - 1.10%
Phosphorus, max 0.035% 0.045% 0.045% 0.035%
Sulfur, max 0.040% 0.030% 0.030% 0.040%
Silicon 0.15 - 0.35% 1.00% max 1.00% max 0.15 - 0.35%
Chromium 0.75 - 1.20% 18.0 - 20.0% 16.0 - 18.0% 0.75 - 1.20%
Nickel 8.0 - 11.0% 10.0 - 14.0%
Molybdenum 0.15 - 0.25% 2.00 - 3.00% 0.15 - 0.25%

Recommended Nuts,Bolts & Washer

Bolt Grade Nuts Washers
B7 A194 Grade 2H F436
B8 Class 1 A194 Grade 8 SS304
B8M Class 1 A194 Grade 8M SS316
B8 Class 2 A194 Grade 8 SS304
B8M Class 2 A194 Grade 8M SS316

 

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