ASTM A36 steel is a widely accepted general purpose structural quality steel offering a constant 36 ksi min. yield point for all thicknesses of material. It is widely used in the construction of buildings, bridges and other structures by means of welding, bolting orriveting. This steel is useful because of its wide availability.

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NOTCH TOUGHNESS

While these steels are not normally recommended where low temperature notch toughness is critical, they have been used in many bridges and other dynamically loaded structures at temperatures at least as low as those found in the settled areas of Canada. Some improvement in the low temperature notch toughness can be obtained by specifying KILLED FINE GRAIN PRACTICE on all thicknesses, but no consistent minimum value can be expected unless impact testing has been specified by the purchaser.

CORROSION RESISTANCE

These steels have the same atmospheric corrosion resistance as plain carbon steels, however, this may be enhanced by specifying copper additions.

WELDABILITY

ASTM A36 steel can be easily welded, using good shop or field practices by all of the usual methods; shielded metal-arc, submerged-arc, gas metal-arc and resistance welding.

GAS CUTTING

This material can be gas cut using good shop or field practices. Cutting of this material generally does not require preheating, but the steel temperature should not normally be below 50°F during cutting.

MECHANICAL PROPERTIES

CHEMICAL REQUIREMENTS