A-434 Steel Bas, Alloy, Hot-Wrought or Cold Finished, Quenched & Tempered

Description

This specification covers hot-wrought and cold-finished quenched and tempered alloy steel bars. The steel materials shall be melt processed by using open-heart, basic oxygen, or electric furnace and shall conform to the austenitic grain size requirement. Tension tests shall be performed wherein the steel specimens shall conform to the required values of yield strength, tensile strength, and elongation.

Hot-wrought bars are available in three strength level classes designated BB, BC, and BD, and cold-finished bars in two strength level classes designated BB and BC.

Specifications

A-434 Steel Bas, Alloy, Hot-Wrought or Cold Finished, Quenched & Tempered

Grade BB : SAE or AISI Representative grade types, 3100, 4100, 8600, 8700
Tensile Strength : 110-90 ksi ranging from 1.50" and under to 9.50"
Yield Strength : 90-65 ksi ranging from 1.50" and under to 9.50"
Elongation : 20-18% in 2"
Reduction of Area min : 50-40

Grade BC : SAE or AISI Representative grade types, 3100, 4100, 6100, 8600, 8700
Tensile Strength : 130-105 ksi ranging from 1.50" and under to 9.50"
Yield Strength : 110-80 ksi ranging from 1.50" and under to 9.50"
Elongation : 16-15% in 2"
Reduction of Area min : 50-40

Grade BD : SAE or AISI Representative grade types, 4100, 4300, 8900
Tensile Strength : 155-130 ksi ranging from 1.50" and under to 9.50"
Yield Strength : 130-100 ksi ranging from 1.50" and under to 9.50"
Elongation : 15% in 2"
Reduction of Area min : 35

Available Forms

• Bar