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Introduction of Q355NE low alloy high strength plate

Posted:2021-09-30 08:42:23

1. Introduction of Q355NE low alloy high strength plate:
Q355NE-Z15 / Z25 / Z35 is a kind of low alloy high strength structural steel. Q355NE is not only high strength steel, but also low carbon steel. Q355NE has high strength and good fatigue resistance; High toughness and low brittle transition temperature; Good cold formability and weldability. Q355NE low alloy high strength plate also has good corrosion resistance and certain wear resistance.

2. Q355NE low alloy high strength plate manufacturing method:
Steel is smelted by converter or electric furnace, and can be refined outside the furnace if necessary. Unless the demander has special requirements and notes in the contract, the smelting method is generally selected by the supplier.

3. Q355NE low alloy high strength plate executive standard:
Q355NE is a low-alloy high-strength structural steel, and the executive standard is GB / T1591-2018.

4. Q355NE low alloy high strength plate chemical composition:
C: Not more than 0.18, Si: not more than 0.5, Mn: 0.90-1.65, P: 0.025, S: 0.020, NB: 0.005-0.05, V: 0.01-0.12, Ti: 0.006-0.05, Cr: not more than 0.30, Ni: not more than 0.50, Cu: not more than 0.40, Mo: not more than 0.10, N: not more than 0.015, ALS: not less than 0.01.

5. Q355NE low alloy high strength plate delivery status:
The steel shall be delivered in hot rolling, normalizing, normalizing rolling or thermomechanical rolling (TMCP).
Note: normalizing state includes normalizing and tempering state, and thermomechanical rolling (TMCP) state includes thermomechanical rolling (TMCP) and tempering state.

6. Q355NE steel dimension, shape, weight and allowable deviation
The dimension, shape, weight and allowable deviation of Q355NE steel shall comply with the provisions of corresponding GB / T709 standard.