ASTM A871/A871M TYPE IV weathering resistant structure steel 

ASTM A871 TYPE IV is a kind of high tensile low alloy weathering resistant steel . ASTM A871/A871M is divided into four levels (I, II, III, IV) according to it's property of the weathering resistance.ASTM A871/A871M belongs to high tensile low alloy steel material, which usually used in the construction, building, bridge

Standard: ASTM A871/A871M

Steel Grade : ASTM A871 IV

Dimension range : 1.2mm -200mm x 1000mm-4000mm x 1000mm-18000mm

ASTM A871 TYPE IV steel chemical composition

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