ASTM | DIN | |
Carbon Steel | A216 - WCB | 1.0619 |
A216 - WCC | ||
A352 - LCC | 1.1138 | |
A352 - LCB | ||
Martensitic Steels | A743 - CA15 | 1.4008 |
A743 - CA40 | 1.4028 | |
A743 CA-6NM | 1.4313 | |
Heat Resisting Steel | A297 - HF | 1.4825 |
A297 - HH | 1.4837 | |
A297 - HI | 1.4846 | |
A297 - HK | 1.4848 | |
1.4749 | ||
A297 - HD | 1.4823 | |
Austenitic Stainless Steel | A351 - CF8 | 1.4308 |
A351 - CF8M | 1.4408 | |
A351 - CF3 | 1.4306 | |
A351 - CF3M | 1.4404 / 1.4409 | |
A351 - CF8C | 1.4827 | |
A351 - CF10 | 1.4308 | |
A351 - CK20 | 1.4843 | |
A351 - CH20 | ||
A351 - CN7M | 1.45 | |
A351 - CG8M | 1.4431 | |
A351 - CG3M | ||
ASTM | DIN | |
Nickle Based Super Alloys | A494 - M-35-1 | 2.4365 |
A494 - M-35-2 | ||
A494 - M 30 C | ||
A494 - N-12MV | ||
A494 - N-7M | ||
A494 - CY40 | 2.4816 | |
A494 - CW12MW | 2.4686 | |
A494 - CW6M | ||
A494 - CW2M | 2.461 | |
A494 - CW6MC | 2.4856 | |
A494 - CX2MW | 2.4602 | |
A494 - Cu5MCuC | 2.4858 | |
A560 - 50Cr50Ni | ||
A560 - 50Cr50Ni-Nb | 2.4813 | |
A560 - 60Cr40Ni | ||
Castings can be supplied as per equipment DIN, JIS, BS and GOST standards.
Other than above, in general we can cast any material compositions as per customers specifications meeting international standards.
INVESTMENT CASTINGS TOLERANCES
REFERENCE INTERNATIONAL STANDARD: VDG P690
LINEAR TOLERANCES :
Nominal size mm | D1 Tolerance (general dimensions) | D2 Tolerance (some functional dimensions) |
0 to 6 | ±0.15 | ±0.12 |
6 to 10 | ±0.18 | ±0.14 |
10 to 18 | ±0.22 | ±0.17 |
18 to 30 | ±0.26 | ±0.20 |
30 to 50 | ±0.40 | ±0.31 |
50 to 80 | ±0.45 | ±0.37 |
80 to 120 | ±0.55 | ±0.44 |
120 to 180 | ±0.8 | 0±0.65 |
180 to 250 | ±1.20 | ±0.95 |
250 to 315 | ±1.30 | ±1.10 |
315 to 400 | ±1.80 | ±1.40 |
Precision class | Length of the tolerated element | ||
to 25 mm | 25 to 50 mm | up to 50 mm | |
allowed difference | |||
D1 | 0.15 mm | 0.25 mm | 0.6% |
D2 | 0.10 mm | 0.20 mm | 0.4% |
Precision class | Nominal dimensions | |||
to 30 mm | 30 to 100 mm | 100 to 200mm | up to 200mm | |
D1 | allowed deviation | |||
minute degree | 30 | 30 | 30 | 20 |
mm / 100 mm | 0.87 | 0.87 | 0.87 | 0.58 |
D2 | allowed deviation | |||
minute degree | 30 | 20 | 15 | 15 |
mm / 100 mm | 0.87 | 0.58 | 0.44 | 0.44 |
Ra | Rz | Rt | |
N9 | 6.3 | 23-32 | 25-38 |
CHANGZHOU MT FOUNDRY VR
