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S355J2G1W steel plate,S355J2G1W steel Mechanical property
S355J2G1W steel plate would be used to build containers which can bear low temperature sea water. S355J2G1W steel plate is a structural steel grade which be used in riveted, bolted, or welded construction of bridges and buildings.
S355J2G1W steel Chemical composition:
C(%): ≤0.16
Si(%): ≤0.50
Mn(%): 0.50~1.50
P(%)≤: 0.035
S(%)≤: 0.035
Cr(%): 0.40~0.80
Ni(%): ≤0.65
Cu(%): 0.25~0.55
Other(%): Al≥0.020;Mo≤0.30;Nb0.015~0.060;Ti0.02~0.10;Zr≤0.15;V0.02~0.10;N0.02~0.10
S355J2G1W steel Mechanical property at different heat treatment practice:
(longitudinal test piece )|σb/MPa: 510~610
(longitudinal test piece)|σs≥/MPa|≤16mm: 355
(longitudinal test piece )|σs≥/MPa|>16~40mm: 345
(longitudinal test piece )|σs≥/MPa|>40~60mm: 335
(longitudinal test piece )|δ5≥(%)|≤150mm: 22
180° cold bending test, flexual centre dia (a—width of test piece| longitudinal : ≤16mm 2a;≤50mm 3a
180° cold bending test, flexual centre dia (a—width of test piece)|transversal : ≤16mm 2a;≤50mm 3a
S355J2G1W steel Manufacturing technique:
According to the steel grade and quality requirement, the melting of steel can adopt basic oxygen furnace, open- hearth furnace, electric arc furnace, electroslag remelting, vacuum degassing, and appropriate heat treatment.
S355J2G1W steel Finished goods condition::
hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering any other conditions based on the customer's requirement.
Surface conditions: scaled (hot working finished)/ground/rough machining/fine machining based on the customer's special requirements.
Furnaces for metallurgical processing: EAF + LF/ VD/ VOD/ AOD/ ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfection or based on the customer's requirement.
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