ASTM A 36

ASTM A36 covers the chemical and mechanical requirements for carbon steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of bridges, buildings, and general structural purposes. Bolts manufactured from A36 steel include ASTM specifications A307 and F1554 Grade 36 as well as SAE J429 Grade 2.

A36 Mechanical Properties
Tensile, ksi 58 - 80
Yield, min ksi 36
Elongation, min % in 2” 20
Elongation, min % in 8” 23
A36 Chemical Properties

Thickness, inches

Up to 3/4"

Over 3/4" to 1-1/2"

Over 1-1/2" to 4"

Over 4"

Carbon, max %

0.26

0.27

0.28

0.29

Manganese, %

0.60 - 0.90

0.60 - 0.90

0.60 - 0.90

Phosphorous, max %

0.04

0.04

0.04

0.04

Sulfur, max %

0.05

0.05

0.05

0.05

Silicon, max %

0.40

0.40

0.40

0.40

Copper, min % when copper is specified

0.20

0.20

0.20

0.20

A36 Appurtenant Materials

Material

ASTM Designation

Bolts

A307 Grade A

High Strength Bolts

A325

Nuts

A563

Forgings

A668 Class D

Anchor Bolts

F1554 Grade 36