| GROUP |
ASTM |
DIN /AISI |
| Cobart Steel |
A216 – WCB |
1.0619 / 1030/1020 |
| A216 – WCC |
1.0619+N / 1020 |
| A352 – LCC |
1.0619+QT , 1.1138 |
| A352 – LCB |
1.0619+QT |
| Low Alloys Steels |
A217 – WC1 |
1.5419 |
| A217 – WC4 |
|
| A217 – WC5 |
|
| A217 – WC6 |
1.7356 |
| A217 – WC9 |
1.7379 |
| A217 – WC11 |
|
| A217 – C5 |
1.7363 |
| A217 – C12 |
|
| A217 – C12A |
|
| Martensitic Steels |
A743 – CA15 |
1.4008 / SS 410 |
| A743 – CA40 |
1.4028 / SS 420 |
| A743 CA-6NM |
1.4313 |
| Heat Resisting Steel |
A297 – HF |
1.4825 |
| A297 – HH |
1.4837 / SS 309 |
| A297 – HI |
1.4846 |
| A297 – HK |
1.4848 / SS 310 |
|
1.4749 |
| A297 – HD |
1.4823 |
| Austenitic Stainless Steel |
A351 – CF8 |
1.4308 / SS 304 |
| A351 – CF8M |
1.4408 / SS 316 |
| A351 – CF3 |
1.4306 / SS 304L |
| A351 – CF3M |
1.4404 / 1.4409 / SS 316L |
| A351 – CF8C |
1.4827 |
| A351 – CF10 |
1.4308 / SS 304 |
| A351 – CK20 |
1.4843 |
| A351 – CH20 |
|
| A351 – CN7M |
1.4500 / Alloy 20 |
| A351 – CG8M |
1.4431 |
| A351 – CG3M |
|
| Austenitic Ferrite Duplex Steels |
A351 – CF3MN |
1.4435 |
| A351 – CD4MCu |
1.4460 / SS 2205 |
| A351 – CG6MMN |
1.3964 |
| A351 – CK3MCuN |
|
| Super Duplex Stainless Steel |
A890 – GR1A |
|
| A890 – GR2A |
|
| A890 – GR3A |
|
| A890 – GR4A |
1.4460 |
| A890 – GR5A |
|
| A890 – GR6A |
1.4469 / SS 2507 |
| Precipitation Hardened Stainless Steel |
CB7Cu1 |
1.4462 / SS 17-4 PH |
| CB7Cu2 |
|
| Nickle Based Super Alloys |
A494 – M-35-1 |
2.4365 / Monel |
| A494 – M-35-2 |
|
| A494 – M 30 C |
|
| A494 – N-12MV |
Hast Alloy – B |
| A494 – N-7M |
|
| A494 – CY40 |
2.4816 |
| A494 – CW12MW |
2.4686 / Hast alloy C |
| A494 – CW6M |
|
| A494 – CW2M |
2.4610 |
| A494 – CW6MC |
2.4856 / Inconel 625 |
| A494 – CX2MW |
2.4602 |
| A494 – Cu5MCuC |
2.4858 / Inconel 825 |
| A560 – 50Cr50Ni |
|
| A560 – 50Cr50Ni-Nb |
2.4813 |
| A560 – 60Cr40Ni |
|
| Cobalt Based Alloys |
STELLITE 3 |
|
| STELLITE 6 |
|
| STELLITE 21 |
|
| STELLITE 23 |
|
| Triballoy T 400 |
|
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 |
±0.26 |
±0.20 |
| 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 |
±0.10 |
| 315 to 400 |
±1.80 |
±1.40 |
Tolerance for straightness, flatness, parallelism, shape:
| 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% |
Tolerance for angle values and right angles:
| Precision class |
Nominal dimensions |
| to 30 mm |
30 to 100 mm |
100 to 200 mm |
up to 200 mm |
|
| D1 |
allowed deviation |
| minute degree |
30 |
30 |
30 |
20 |
| mm / 100 mm |
0.87 |
0.87 |
0.87 |
0.58 |
| D1 |
allowed deviation |
| minute degree |
30 |
20 |
15 |
15 |
| mm / 100 mm |
0.87 |
0.58 |
0.44 |
0.44 |
Surface quality according to ISO R 468, DIN 4769 and VSM10321 :
|
RA |
RZ |
RT |
| N9 |
6.3 |
23-32 |
25-38 |
