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Product Name: High-strength low-alloy structural steel
Grade: Q345
Size (mm): Thickness T :10-50; width W :1800-2700; length L :6000-12700
Executive Standard: GB / T 1591-2008
Product Scope:
Overall performance, good weldability and low temperature impact toughness, suitable for machining, fabrication and welding structural parts transportation vehicles, chemical equipment, pipe, structural engineering, construction steel, machinery and other substrates.
Mechanical Properties
Tensile strength :490-675Mpa Yield strength: ≥ 345Mpa Elongation: ≥ 22%
Chemical composition
Q345A: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.035, S ≤ 0.035;
Q345B: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.035, S ≤ 0.035;
Q345C: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.030, S ≤ 0.030, Al ≥ 0.015;
Q345D: C ≤ 0.18, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.030, S ≤ 0.025, Al ≥ 0.015;
Q345E: C ≤ 0.18, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.025, S ≤ 0.020, Al ≥ 0.015;
Q345A, B, C, D, E inclusive Nb ≤0.07, V ≤0.15, Ti ≤0.20, Cr ≤0.30, Ni ≤0.012, Mo ≤0.10.
Product Name: High-strength low-alloy structural steel
Grade: Q345
Size (mm): Thickness T :10-50; width W :1800-2700; length L :6000-12700
Executive Standard: GB / T 1591-2008
Product Scope:
Overall performance, good weldability and low temperature impact toughness, suitable for machining, fabrication and welding structural parts transportation vehicles, chemical equipment, pipe, structural engineering, construction steel, machinery and other substrates.
Mechanical Properties
Tensile strength :490-675Mpa Yield strength: ≥ 345Mpa Elongation: ≥ 22%
Chemical composition
Q345A: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.035, S ≤ 0.035;
Q345B: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.035, S ≤ 0.035;
Q345C: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.030, S ≤ 0.030, Al ≥ 0.015;
Q345D: C ≤ 0.18, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.030, S ≤ 0.025, Al ≥ 0.015;
Q345E: C ≤ 0.18, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.025, S ≤ 0.020, Al ≥ 0.015;
Q345A, B, C, D, E inclusive Nb ≤0.07, V ≤0.15, Ti ≤0.20, Cr ≤0.30, Ni ≤0.012, Mo ≤0.10.
Product Name: High-strength low-alloy structural steel
Grade: Q345
Size (mm): Thickness T :10-50; width W :1800-2700; length L :6000-12700
Executive Standard: GB / T 1591-2008
Product Scope:
Overall performance, good weldability and low temperature impact toughness, suitable for machining, fabrication and welding structural parts transportation vehicles, chemical equipment, pipe, structural engineering, construction steel, machinery and other substrates.
Mechanical Properties
Tensile strength :490-675Mpa Yield strength: ≥ 345Mpa Elongation: ≥ 22%
Chemical composition
Q345A: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.035, S ≤ 0.035;
Q345B: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.035, S ≤ 0.035;
Q345C: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.030, S ≤ 0.030, Al ≥ 0.015;
Q345D: C ≤ 0.18, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.030, S ≤ 0.025, Al ≥ 0.015;
Q345E: C ≤ 0.18, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.025, S ≤ 0.020, Al ≥ 0.015;
Q345A, B, C, D, E inclusive Nb ≤0.07, V ≤0.15, Ti ≤0.20, Cr ≤0.30, Ni ≤0.012, Mo ≤0.10.
Product Name: High-strength low-alloy structural steel
Grade: Q345
Size (mm): Thickness T :10-50; width W :1800-2700; length L :6000-12700
Executive Standard: GB / T 1591-2008
Product Scope:
Overall performance, good weldability and low temperature impact toughness, suitable for machining, fabrication and welding structural parts transportation vehicles, chemical equipment, pipe, structural engineering, construction steel, machinery and other substrates.
Mechanical Properties
Tensile strength :490-675Mpa Yield strength: ≥ 345Mpa Elongation: ≥ 22%
Chemical composition
Q345A: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.035, S ≤ 0.035;
Q345B: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.035, S ≤ 0.035;
Q345C: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.030, S ≤ 0.030, Al ≥ 0.015;
Q345D: C ≤ 0.18, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.030, S ≤ 0.025, Al ≥ 0.015;
Q345E: C ≤ 0.18, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.025, S ≤ 0.020, Al ≥ 0.015;
Q345A, B, C, D, E inclusive Nb ≤0.07, V ≤0.15, Ti ≤0.20, Cr ≤0.30, Ni ≤0.012, Mo ≤0.10.
Product Name: High-strength low-alloy structural steel
Grade: Q345
Size (mm): Thickness T :10-50; width W :1800-2700; length L :6000-12700
Executive Standard: GB / T 1591-2008
Product Scope:
Overall performance, good weldability and low temperature impact toughness, suitable for machining, fabrication and welding structural parts transportation vehicles, chemical equipment, pipe, structural engineering, construction steel, machinery and other substrates.
Mechanical Properties
Tensile strength :490-675Mpa Yield strength: ≥ 345Mpa Elongation: ≥ 22%
Chemical composition
Q345A: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.035, S ≤ 0.035;
Q345B: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.035, S ≤ 0.035;
Q345C: C ≤ 0.20, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.030, S ≤ 0.030, Al ≥ 0.015;
Q345D: C ≤ 0.18, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.030, S ≤ 0.025, Al ≥ 0.015;
Q345E: C ≤ 0.18, Mn ≤ 1.70, Si ≤ 0.50, P ≤ 0.025, S ≤ 0.020, Al ≥ 0.015;
Q345A, B, C, D, E inclusive Nb ≤0.07, V ≤0.15, Ti ≤0.20, Cr ≤0.30, Ni ≤0.012, Mo ≤0.10.
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