CHINESE STANDARD JOINT BAR | ||
SIZE | STANDARD | MATERIAL |
43KG | TB/T 2345-2008 | 55# |
50KG | ||
60KG | ||
75KG |
Standard:
TB/T 2345-2008
Material:
Chinese steel grade 55#
ChemicalComposition
C | Mn | Si | S | P |
0.52-0.6 | 0.5-0.8 | 0.17-0.37 | ≤0.035 | ≤0.035 |
MechanicalProperty
- TensilestrengthRm:≥785Mpa
- Yield strength Rel / Rr0.2 : ≥520 Mpa ElongationA:≥9
- Reduction of Area Z: ≥20%
- Cold Bend d=3a: 30 degree, no crack