ASTM A193 B7M STUD BOLTS

ASTM A193 B7M STUD BOLTS

Why Lightning Bolt?

Lightning Bolt & Supply has been servicing North America’s industrial fastener needs for over 25 years.  Since then, our focus on the production of high quality parts at competitive pricing has allowed us to become an industry leader.  Our niche in exotic high nickel alloy fasteners include materials such as: hastelloy, Inconel, monel, A-286, 904L, Alloy-20, duplex stainless as well as many additional alloys.

Being centrally headquartered in Baton Rouge, Louisiana, we are capable of shipping to jobsites all over the world.  Many of our industrial projects that we supply material to include anchor bolts, and also stud bolts of many different ASTM grades.  These include B7, L7, B16, B8, B8M, stain hardened and many more.  In addition to being an ISO certified fastener manufacturer, we were awarded “Corporate Supplier of the Year” by WBENC.

ASTM A193 B7, B7M, B16

Identification

B7 & B7M B16 

Grade

Chromium - Molybdenum (C4140,4142,4145,4140 H, 4142 H, 4145H)Chromium - Molybdenum - Vanadium

Element

Range

Tolerance +/-

Range

Tolerance +/-

Carbon0.37 - 0.490.020.36 - 0.440.02
Manganese0.65 - 1.100.040.45 - 0.700.03
Phosphorus, max0.0350.005 over0.0350.005 over
Sulfur, max0.0400.005 over0.0400.005 over
Silicon0.15 - 0.350.020.15 - 0.350.02
Chromium0.75 - 1.200.050.8 - 1.150.05
Molybdenum0.15 - 0.250.020.50 - 0.650.03
Vanadium--0.25 - 0.350.03
Aluminum, max%--0.015-

ASTM A193 TENSILE STRENGTH / HARDNESS CHART

Grade and ClassDiameterTensile Strength Min KSIYield Strength 0.2% Offset KSIElongation in 4D, Min, %Reduction of Area Min, %Hardness Max BrinellHardness Max Rockwell
B5up to 4" incl100801650--
B6up to 4" incl110851550--
B6Xup to 4" incl90701650-C26
B7to 2-1/2"1251051650-C35
over 2-1/2 to 4"115951650-C35
over 4" to 7"100751850-C35
B7Mup to 4" incl100801850235B99
over 4" to 7"100751850235B99
B16to 2-1/2"1251051850321C35
over 2-1/2" to 4"110951745321C35
over 4" to 7"100851645321C35
Classes 1 and 1D: B8, B8M, B8P, B8LN, B8MLALL75303050223B96
Class 1: B8C, B8TALL75303050223B96
Class 1A: B8A, B8CA, B8MA, B8PA, B8TA, B8LNA, B8MLNA, B8NA, B8MNA, B8MLCuNAALL75303050192B90
Classes 1B & 1D: B8N, B8MN, B8MLCuNALL80353040223B96
Class 1C and 1D: B8RALL100553555271C28
Class 1C: B8RAALL100553555271C28
Classes 1C and 1D: B8SALL95503555271C28
Classes 1C: B8SAALL95503555271C28
Class 2: B8, B8C, B8P, B8T, B8Nto 3/4"1251001235321C35
over 3/4" to 1"115801535321C35
over 1" to 1-1/4"105652045321C35
over 1-1/4 to 1-1/2" incl100502845321C35
Class 2 B8M, B8MN, B8MLCuNto 3/4"110961545321C35
over 3/4" to 1"100802045321C35
over 1" to 1-1/4"95652545321C35
over 1-1/4 to 1-1/2" incl90503045321C35
Class 2B: B8, B8M2to 2" incl95752540321C35
over 2" to 2-1/2" incl90653040321C35
over 2-1/2 " to 3" incl80553040321C35
Class 2C: B8M3to 2" incl85653060321C35
over2"85603060321C35

 

CALL: 225-272-6200 24/7

Lightning Bolt & Supply, INc

CALL: 225-272-6200 24/7