What is 150 ksi steel?

Strength Requirements by Grades

Yield strength , or working load limit, is the amount of stress a material can withstand without permanent deformation.

Tensile strength is the maximum amount of axial stress that a material can take before breaking.

All strength measurements are in ksi (kilo-pound per square inch). To find the actual weight a bolt can withstand you would have to multiply by the area of the cross section of the bolt. 1 ksi = 1000psi

SAE Bolts / Sockets

SAE J429

Grade Material Size Range Yield (ksi) Tensile (ksi) Hardness Grade 2 Carbon Steel 1/4 - 3/4 (7/8 - 1 1/2) 57 (36) 74 (60) B80-B100 Grade 5 Carbon Steel 1/4 - 1 (1 1/8 - 1 1/2) 92 (81) 120 (105) C25-C34 Grade 8 Alloy Steel 1/4 - 1 1/2 130 150 C33-C39 Sockets Alloy Steel < 1/2 (1/2 - 2) 162(153) 180 (170) C38-C45

Common Stainless Grades

More Grades

Grade Material Size Range Yield (ksi) Tensile (ksi) Hardness 304 S/S 304 1/4 - 1 1/2 40 85-150 B85-B95 316 S/S 316 1/4 - 1 1/2 40 85-140 B85-B95

ASTM

Metric

Grade Material Yield (ksi) Tensile (ksi) Hardness 4.6 Low Carbon Steel 35 58 B67-B95 5.8 Low Carbon Steel 60 75 B82-B95 8.8 Medium Carbon Steel 92 120 C22-C34 10.9 Alloy Steel 136 150 C32-C39 12.9 Alloy Steel 159 176 C39-C44

Alloy Steel Grade: AISI 4130

Product Forms: Steel Bars Hardened and Tempered | Tensile Strength

Scope: This specification covers an aircraft-quality, low-alloy steel in the form of heat treated bars 1.50 inches (38.1 mm) and less in diameter or least distance between parallel sides.

Product availability:

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