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Q215 B
Data Table for: Steel Grades : Structure Steel : Q215 B
Chemical composition(mass fraction)(wt.%)
- C
- Si
- Mn
- P
- S
- Cr
- Ni
- 0.09～0.15
- ≤0.30
- 0.25～0.55
- ≤0.045
- ≤0.045
- ≤0.30
- ≤0.30
- Cu
- ≤0.30
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 Q215 B specifications and size
- Steel grade
- Specification
- Processing range(mm)
- Q215 B
- Q215 B
- Q215 B
- Q215 B
- Q215 B
- Q215 B
- 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
Mechanics performance
The yield point σ s/MPa (no less) than in steel different thickness or diameter/mm |≤ 16:215
The yield point σ s/MPa (no less) than in steel different thickness or diameter/mm | > 16 ~ 40:205
The yield point σ s/MPa (no less) than in steel different thickness or diameter/mm | > 40 to 60:195
The yield point σ s/MPa (no less) than in steel different thickness or diameter/mm | > 60 ~ 100:185
The yield point σ s/MPa (no less) than in steel different thickness or diameter/mm | > 100 ~ 150:175
The yield point σ s/MPa (no less) than in steel different thickness or diameter/mm | > 150:165
Cold bending property
Sample direction: horizontal
180 ° of cold bending test b = 2 a different thickness or in steel diameter/mm | than 60: d = a
180 ° of cold bending test b = 2 a different thickness or in steel diameter/mm | > 60 ~ 100: d = 2 a
180 ° of cold bending test b = 2 a different thickness or in steel diameter/mm | > 100 ~ 200: d = 2.5 a
Performance characteristics and applications
High plasticity and toughness and welding performance, good pressure processing performance, but low strength.
Load small parts, spacers, rivets, the anchor bolt, colter, funnel, roof, low carbon steel wire, plates, welded pipe, bars, split cotters, and stamping parts, components etc.
GB/T 700-1988 standard and GB 700-1979 standard steel grade comparison
GB/T 700-1988 standadr:
Regardless of rank, the chemical composition and mechanical properties (σ s, σ b, the delta and the cold bending) are to be guaranteed
Rolling plate and rod of products, the mechanical properties of the guarantee condition, can according to product characteristics and application requirements, in the standard separately
GB 700-1979 standard
A1 the mechanical properties of the steel guarantee (σ s, σ b, the delta and the cold bending), B1 steel guarantee the chemical composition of the same with Q195
A1 steel cold bending test is additional guarantee conditions
1 no special steel of steel
Standard download
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