DIN 17155 19 Mn 6 gas cylinders and gas vessels tube Production Process

DIN 17155 19 Mn 6 gas cylinders and gas vessels tube high temperature structural steel of German standard number, equivalent to GB Q345R and European standard P355GH, according to DIN17155 standards of production, the physical quality reach and exceed the foreign advanced level . DIN 17155 19 Mn 6 gas cylinders and gas vessels tube forgings forging temperature: heating temperature of 1200 ℃, heat 1 min • mm-1, initial forging temperature 1100 ~ 1150 ℃, the final forging temperature ≥850 ℃, air cooling after forging, heat treatment after forging using positive, the heating temperature is 910 ~ 940 ℃, holding time of 1 min • mm-1 air-cooled .
DIN 17155 19 Mn 6 gas cylinders and gas vessels tube Production Process:
EAF --LF refining --VD vacuum - molded - steel ingot heating - rolling - normalizing - tempering - testing - steel cutting inspection - storage.
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