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A709 Grade HPS 50W & 70W

ASTM A709 grade HPS steel plate is primarily used in the manufacture of bridges. The grades HPS 50W and HPS 70W are higher performing grades for extreme climates, where temperature fluctuations are a factor.

Please call Leeco Steel at 1-888-828-7897 to be connected to a member of our sales team who can share more information about A709 HPS plate steel.

ASTM A709 (Grades HPS 50W and 70W) Chemical Composition

A709 Steel Composition
  HPS 50W & 70W
Carbon 0.11% max
Manganese 1.1-1.5%
Phosphorus 0.02% max
Sulfur 0.006% max
Silicon 0.3-0.5%
Copper 0.25-0.4%
Nickel 0.25-0.4%
Chromium 0.45-0.7%
Molybdenum 0.02-0.08%
Vanadium 0.04-0.08%
Aluminum 0.01-0.04%
Nitrogen 0.015% max