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Australian low alloy AS3678-WR350 steel plate

1. Introduction of AS3678-WR350 steel plate:
AS3678-WR350 plate is Australian low alloy steel plate, AS3678 represents the Australian low alloy steel standard AS-NZS 3678, WR represents atmospheric corrosion resistance, and 350 represents the minimum yield strength value.

2. AS3678-WR350 steel plate executive standard: AS-NZS 3678-2011.

3. Mechanical properties of AS3678-WR350 steel plate:

Grade Yield Strength Rp0.2 MPa Tensile Strength Rm(Mpa) Elongation A%
Thickness (mm)
≤8 >8≤12 >12≤20 >20≤32 >32≤50 >50≤80 >80≤150
AS3678-WR350 340 340 340 340 340 - - 450 20

4. Melting analysis of chemical composition of AS3678-WR350 steel plate:

Grade C Si Mn P S Cr Ni Cu Mo Al Ti
AS3678-WR350 ≤0.14 0.15-0.75 ≤1.70 ≤0.160 ≤0.030 0.35-1.05 ≤0.55 0.15-0.50 ≤0.10 ≤0.100 ≤0.040

Note: (1) The grades listed allow the use of modified sulfide steelmaking techniques.
(2) The limit value applies to both acid-soluble aluminum and all-aluminum.
(3) The carbon equivalent CE is calculated based on the actual smelting composition or the composition of the finished product, and is calculated according to the following formula: CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15
(4) Ni+V≤0.030%
(5) V≤0.10%, Ni+V+Ti≤0.15%.

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