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1. The applicable scope
The technology conditions apply to thickness is no more than the 160 mm of TSTE 315 N-Z25 steel plates.
2. The size, shape, weight and allow deviation
The steel plate size and shape, weight and deviation should be allowed to meet the provisions of the DIN 1543.
3. Technical requirements
3.1 chemical composition
TSTE 315 N-Z25 steel smelting analysis should comply with the provisions of the table below:
|
C |
Si |
Mn |
P |
S |
V |
Nb |
Al总 |
Cr |
Cu |
Mo |
Ni |
|
≤0.18 |
0.10～0.50 |
0.90～1.65 |
≤0.025 |
≤0.010 |
≤0.05 |
≤0.05 |
≥0.020 |
≤0.30 |
≤0.20 |
≤0.10 |
≤0.60 |
3.2 carbon equivalent:
Cep ≤0.45%
1.3 mechanical properties:
sample after simulating welding heat treatment, mechanical properties should be consistent with the requirements of the table below:
|
thickness
|
σb |
σs |
δ5 |
Longitudinal-20℃AKV |
0℃ |
|
mm |
MPa |
MPa |
% |
J/cm2 |
J/cm2 |
|
≤160 |
≥450 |
≥260 |
≥20 |
1/4Thick plate≥35 |
≥40 |
|
cores ≥18 |
≥24 |
1.3 Z to performance according to the requirements ofGB 5313-85 Z25.
3.4 steel plate delivery status: normalized
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