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ASTM A709 Grade 50 steel
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ASTM A709 Grade 50 steel

ASTM A709 Grade 50 steel is carbon and high-strength low alloy steel.

ASTM A709 Grade 50 steel Specification for Structural Steel for Bridges.

ASTM A709 Grade 50 material chemical composition,max %

C Mn P S Si
0.23 1.35 0.04 0.05 0.40

ASTM A709 Grade 50 structural steel mechanical properties

Grade Steel plate thickness,mm Section steel thickness,mm Yield strength [mpa] Tensile strength [mpa] Elongation min %
Steel plate Section steel
8in[200mm] 2in[50mm] 8in[200mm] 2in[50mm]
50 ≤100 all [345]min 450min 18 21 18 21

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