The preparation of SA573 Grade 58 steel plate composition galvanized steel before welding is the same as that of ordinary low-carbon steel. It is necessary to carefully handle the groove size and nearby galvanized layer. In order to achieve penetration, the groove size shall be appropriate, generally 60 ~ 65 °, with a certain gap, generally 1.5 ~ 2.5mm; in order to reduce the penetration of zinc into the weld, the galvanized layer in the groove can be removed before welding. In the practical work, the centralized beveling, no blunt edge technology for SA573 Grade 58 steel plate composition centralized control, two-layer welding process, reducing the possibility of incomplete penetration.
Q370R Pressure vessel steel plate chemical composition(%)
C≤0.18 Si≤0.55 Mn:1.20-1.60 P≤0.025 S≤0.015 Nb:0.015-0.050
GB 713 Q370R steel mechanical property
Yield strength Mpa:340-370 Tensile strength Mpa:520-630
SA573 Grade 58 steel plate composition boiler plate specification
Thickness:6~150mm
Width:1500~4020mm
Length:3000~25000mm"
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The high strength SA573 Grade 58 steel plate composition low alloy steel, which is shorten as HSLA steel, is one of our main products. We have professional team to serve you. For any demands or questions about HSLA steel, for example, ASTM A572 grade 50 chemical composition, difference between S355JR and S355J2, mechanical properties of SA573 Grade 58 steel plate composition ST52 steel, Q345B tensile strength, Q345D steel ASTM equivalent, HSLA steel price etc. , please do not hesitate to contact us and consult.
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