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Q345q E
Data Table for: Steel Grades : Structure Steel : Q345q E
Chemical composition(mass fraction)(wt.%)
- C
- Si
- Mn
- P
- S
- ≤0.17
- ≤0.50
- 1.20～1.60
- ≤0.020
- ≤0.015
Mechanical Properties
- Quantity
- Value
- Unit
- Young's modulus
- Tensile strength
- Elongation
- Fatigue
- Yield strength
- 200000 - 200000
- 650 - 880
- 8 - 25
- 275 - 275
- 350 - 550
- MPa
- MPa
- %
- MPa
- MPa
Physical Properties
- Quantity
- Value
- Unit
- Thermal expansion
- Thermal conductivity
- Specific heat
- Melting temperature
- Density
- Resistivity
- 10 - 10
- 25 - 25
- 460 - 460
- 1450 - 1510
- 7700 - 7700
- 0.55 - 0.55
- e-6/K
- W/m.K
- J/kg.K
- °C
- kg/m3
- Ohm.mm2/m
Heat Treatment:
Annealing |
Quenching |
Tempering |
Normalizing |
Q & T |
√ |
√ |
√ |
√ |
√ |
Can produce Q345q E specifications and size
- Steel grade
- Specification
- Processing range(mm)
- Q345q E
- Q345q E
- Q345q E
- Q345q E
- Q345q E
- Q345q E
- Φ1 to Φ2000
- 10 to 1000
- 0.08 to 800(T)*10 to 1500(W)*Long
- Pipe/tube/slugs/donuts/cubes/other shapes
- OD: Φ4-410; WT: 1-35 mm
- THK:0.1mm Width:1500mm
Description
Bridge structure with steel
Steel thickness/mm: more than 16
The yield point | σ s frequency/MPa: 235
Tensile depth | σ b frequency/MPa: 390
Elongation | δ frequency / (%) 5:26
Impact absorption power AKV/J | testing temperature / ℃ :-20
Impact absorption power AKV/J | longitudinal frequency/J | : 27
Impact absorption power AKV/J | time frequency/J | : 27
180 ° of cold bending test | d-apex diameter, a-the following steel thickness thickness when/mm | than 16: d = 1.5 a
180 ° of cold bending test | d-apex diameter, a-the following steel thickness thickness when/mm | > 16: d = 2.5 a
Mechanics performance
Steel thickness/mm: more than 16
The yield point | σ s frequency/MPa: 235
Tensile depth | σ b frequency/MPa: 390
Elongation | δ frequency / (%) 5:26
Impact absorption power AKV/J | testing temperature / ℃ :-20
Impact absorption power AKV/J | longitudinal frequency/J | : 27
Impact absorption power AKV/J | time frequency/J | : 27
180 ° of cold bending test | d-apex diameter, a-the following steel thickness thickness when/mm | than 16: d = 1.5 a
180 ° of cold bending test | d-apex diameter, a-the following steel thickness thickness when/mm | > 16: d = 2.5 a
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