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1 3/4-8 X 11 3/4 A193 B7 Stud Bolt

Selected A193 Grade B7 Stud Bolt Black OxideB7 Stud Bolt
A193 Grade B7 Stud Bolt Black OxideB7 Stud Bolt

Product Specification

Diameter
1 3/4
Length
11 3/4
Grade
Grade B7
With Nut?
Bolt Only
Material
Steel
Finish
Black
Country of Origin
Unrestricted Origin
Weight
7.230167

Chemical Properties

Per ASTM A193/A193M-16
Grade Material Carbon Manganese Phosphorus Sulfur Silicon Chromium Molybdenum
% by weight % by weight % by weight % by weight % by weight % by weight % by weight
B7 Alloy Steel 0.38-0.48 (1) 0.75-1.00 0.035 max 0.040 max 0.15-0.35 0.80-1.10 0.15-0.25
  1. 1. For bar sizes over 3 1⁄2 in. [90 mm], inclusive, the carbon content may be 0.50 % max.

Stud Flange Charts

FLANGE NOMINAL PIPE DIAMETER
CLASS BOLTING 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 3-1/2 4
150# Number 4 4 4 4 4 4 4 4 8 8
Diameter 1/2 1/2 1/2 1/2 1/2 5/8 5/8 5/8 5/8 5/8
Stud Bolt Length 2-1/4 2-1/2 2-1/2 2-3/4 2-3/4 3-1/4 3-1/2 3-1/2 3-1/2 3-1/2
Mach Bolt Length 2 2 2-1/4 2-1/4 2-1/2 2-3/4 3 3 3 3
300# Number 4 4 4 4 4 8 8 8 8 8
Diameter 1/2 5/8 5/8 5/8 3/4 5/8 3/4 3/4 3/4 3/4
Stud Bolt Length 2-1/2 3 3 3-1/4 3-1/2 3-1/2 4 4-1/4 4-1/4 4-1/2
Mach Bolt Length 2-1/4 2-1/2 2-1/2 2-3/4 3 3 3-1/4 3-1/2 3-3/4 3-3/4
600# Number 4 4 4 4 4 8 8 8 8 8
Diameter 1/2 5/8 5/8 5/8 3/4 5/8 3/4 3/4 7/8 7/8
Stud Bolt Length 3 3-1/2 3-1/2 3-3/4 4-1/4 4-1/4 4-3/4 5 5-1/2 5-3/4
900# Number 4 4 4 4 4 8 8 8 - 8
Diameter 3/4 3/4 7/8 7/8 1 7/8 1 7/8 - 1-1/8
Stud Bolt Length 4-1/4 4-1/2 5 5 5-1/2 5-3/4 6-1/4 5-3/4 - 6-3/4
1500# Number 4 4 4 4 4 8 8 8 - 8
Diameter 3/4 3/4 7/8 7/8 1 7/8 1 1-1/8 - 1-1/4
Stud Bolt Length 4-1/4 4-1/2 5 5 5-1/2 5-3/4 6-1/4 7 - 7-3/4
2500# Number 4 4 4 4 4 8 8 8 - 8
Diameter 3/4 3/4 7/8 1 1-1/8 1 1-1/8 1-1/4 - 1-1/2
Stud Bolt Length 4-3/4 5 5-1/2 6 6-3/4 7 7-3/4 8-3/4 - 10
FLANGE NOMINAL PIPE DIAMETER
CLASS BOLTING 5 6 8 10 12 14 16 18 20 24
150# Number 8 8 8 12 12 12 16 16 20 20
Diameter 3/4 3/4 3/4 7/8 7/8 1 1 1-1/8 1-1/8 1-1/4
Stud Bolt Length 3-3/4 4 4-1/4 4-1/2 4-3/4 5-1/4 5-1/4 5-3/4 6-1/4 6-3/4
Mach Bolt Length 3-1/4 3-1/4 3-1/2 4 4 4-1/2 4-1/2 5 5-1/2 6
300# Number 8 12 12 16 16 20 20 24 24 24
Diameter 3/4 3/4 7/8 1 1-1/8 1-1/8 1-1/4 1-1/4 1-1/4 1-1/2
Stud Bolt Length 4-3/4 4-3/4 5-1/2 6-1/4 6-3/4 7 7-1/2 7-3/4 8 9
Mach Bolt Length 4-1/4 4-1/4 4-3/4 5-1/2 5-3/4 6-1/4 6-1/2 6-3/4 7-1/4 8
600# Number 8 12 12 16 20 20 20 20 24 24
Diameter 1 1 1-1/8 1-1/4 1-1/4 1-3/8 1-1/2 1-5/8 1-5/8 1-7/8
Stud Bolt Length 6-1/2 6-3/4 7-1/2 8-1/2 8-3/4 9-1/4 10 10-3/4 11-1/4 13
900# Number 8 12 12 16 20 20 20 20 20 20
Diameter 1-1/4 1-1/8 1-3/8 1-3/8 1-3/8 1-1/2 1-5/8 1-7/8 2 2-1/2
Stud Bolt Length 7-1/2 7-1/2 8-3/4 9-1/4 10 10-3/4 11-1/4 12-3/4 13-3/4 17-1/4
1500# Number 8 12 12 12 16 16 16 16 16 16
Diameter 1-1/2 1-3/8 1-5/8 1-7/8 2 2-1/4 2-1/2 2-3/4 3 3-1/2
Stud Bolt Length 9-3/4 10-1/4 11-1/2 13-1/4 14-3/4 16 17-1/2 19-1/2 21-1/4 24-1/4
2500# Number 8 8 12 12 12 - - - - -
Diameter 1-3/4 2 2 2-1/2 2-3/4 - - - - -
Stud Bolt Length 11-3/4 13-1/2 15 19-1/4 21-1/4 - - - - -
  1. All dimensions are in inches.

Mechanical Properties

Alloy Steel, Quenched & Tempered Per ASTM A193/A193M-16
Diameter Tempering
Temperature
Tensile
Strength
Yield Strength,
0.2% offset
Elongation
in 4D
Reduction
of Area
Hardness
Min ksi Min ksi Min % Min % Max
2 1/2" and under 1100F 125 105 16 50 321 HBW or 35 HRC
over 2 1/2 to 4" 1100F 115 95 16 50 321 HBW or 35 HRC
over 4 to 7" 1100F 100 75 18 50 321 HBW or 35 HRC

Governing Standards

ASTM A193 Covers alloy and stainless steel bolting materials and bolting components for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
ASME B18.31.2 Covers the complete dimensional and general data for continuous thread, flange studs (stud bolts), and double-end inch-dimensioned studs.
ASME B1.1 UNC & UNF Class 2A Specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads.

Grade B7 Head Marking
Grade B7 Material Marking

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