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  • A709Gr50W Type B
  • A709Gr50W Type B

A709Gr50W Type B

  • Steel Standard: ASTM A709/A709M
  • Rolling Type: High strength low alloy steel plate,Bridge steel plate
  • Thickness: 6mm-300mm
  • Width: 1500mm-4200mm
  • Length: 3000mm-18000mm
  • Heat Treatment: AR/Control-rolled/TMCP/QT
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■ Overview
High strength low alloy steel plate ASTM A709GR.50W also named as weathering steel plate A709 Grade 50W in advantage of its property in atmosphere corrosion resistance.According to the different main chemical elements contains,A709 Grade 50W was divided as A709Gr50w type A, A709Gr50w type B, A709Gr50w type C.These three steel grades are equivalent to specification ASTM A 588/A 588M A588 Grade A,A588 Grade B and A588 Grade C.Low alloy steel plate A709 Grade 50W also owned the same minimum limited yield strength at 345 Mpa as A709 Grade 50 steel plate.
■ Full Data
Technical Requirements & Additional Services:
♦ High tension test
♦ Low temperature impacting test
♦ Simulated post-welded heat treatment (PWHT)
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ When cooper steel is specified for A709Gr36,the content Cu≥0.20%
♦ Shot blasting and Painting,Cutting and welding as per end user’s demands 
■ Techicals

Mechnical property for A709 Grade 50W Type B low alloy steel:

Yield strength (≥Mpa) Tensile strength (≥Mpa) Elongation in ≥,%
345 485 200mm 50mm
18 21

Chemical composition for A709Gr50W Type B low alloy steel (Heat Analysis Max%)

Main chemical elements composition of A709Gr50W Type B
C Si Mn P S Ni Cr Cu V
0.20 0.15-0.50 0.75-1.35 0.04 0.05 0.50 0.40-0.70 0.20-0.40 0.01-0.10

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