Steel Standard:EN 10025-4
Rolling Type:Structural steel plate,low alloy steel plate
Heat Treatment:Thermo-Mechanical Control Process (TMCP)

Steel plate S420M is low alloy steel plate which is mainly used to manufacture the plants of factory,the common constructure and construction machinery and equipment.For S420M structural steel,M is for heat treatment under TMCP.For the thickness equal and belows 16mm,the minimum yield strength of steel plate S420M shall be 420 Mpa,and tensile strength of steel plate S420M shall be within 520-680 Mpa.Now steel can offer the maximum thickness of S420M steel reach till 400mm and with the unit weight about 28 metic tons.

Technical Requirements & Additional Services:
Low temperature impacting test
Rolling under standard NACE MR-0175 (HIC+SSCC)
Ultrasonic test under EN 10160,ASTM A435,A577,A578
Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
Shot blasting and Painting,Cutting and welding as per end user’s demands

Mechnical property for S420ML Structural steel:

Thickness (mm)
S420ML ≤ 16 > 16 ≤ 40 > 40 ≤ 63 > 63 ≤ 80 > 80 ≤ 100 > 100
Yield strength (≥Mpa) 420 400 390 380 370 365
  ≤ 40 > 40 ≤ 63 > 63 ≤ 80 > 80 ≤ 100 > 100
Tensile strength (Mpa) 520-680 500-660 480-640 470-630 460-620

Chemical composition for S420ML Structural steel (Heat Analysis Max%)

Main chemical elements composition of S420ML
C Si Mn P S Nb V
0.16 0.50 1.70 0.025 0.020 0.05 0.12
Al(total) Ti Cr Ni Mo Cu N
≥0.02 0.05 0.30 0.80 0.20 0.55 0.025
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