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GB/T 700 Q275 Carbon Steel Precision Casting
Symbol |
Chemical composition |
||||
|
C max |
Si max |
Mn max |
P max |
S max |
Q275 |
0.28~0.38 |
≤0.30 |
0.50~0.80 |
≤0.045 |
≤0.050 |
GB/T 700 Q275 precision castings Mechanical properties
Symbol |
Yield point or proof stress N/mm2 (min) |
Tensile strength N/mm2 min |
Elongation % min |
According to the contract |
||
Transverse Shrinkage Z/% |
Impact Toughness KU2/J |
|
||||
Q275 |
245 |
410-550 |
23 |
- |
27 |
|