Technical Capabilities

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