ASTM-A992 SPECIFICATIONS

TABLE 1: CHEMICAL REQUIREMENTS(Heat Analysis)

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 Element

 Composition, %

Carbon, max

0.23

Manganese

0.50-1.50A

Silicon, max

0.40

Vanadium, max

0.11B,C

Columbium, max

0.05B

Phosphorus, max

0.055

Sulfur, max

0.045

Copper, max

0.60

Nickel, max

0.48

Chromium, max

0.35

Molybdenum, max

0.15

AProvided that the ratio of manganese to sulfur is not less that 20:1, the minimum limit for manganese for Group 1 shapes shall be 0.30%.

BThe sum of columbium and vanadium shall not exceed 0.15%.

CWhen vanadium is added as the only nitrogen-binding element, nitrogen shall be reported and the ratio of vanadium to nitrogen shall be 4:1 or higher if the nitrogen is greater than 0.012%

TABLE 2: TENSILE REQUIREMENTS

Tensile strength, min kal (MPa)

65

Yield point, ksi (Mpa)

50-65

Yield to tensile ratio, max

0.85

Elongation in 8 in. (200mm). min %*

18

Elongation in 2 in. (50mm). min %*

21

*See elongation requirements under the Tension Tests section of Specification A B/A 6M.

 

KEYWORDS

7.1 building framing; shapes; structural steel; welded construction.