Technical Capabilities
Material poured at Dharpat Casting
Material – Ferrous as well as non-ferrous materials can be cast by the lost wax process casting. Nickel and Cobalt based materials are difficult to cast otherwise, specifically in tight tolerances in dimensions and in exactly mixed alloy forms. We have the capacity to manufacture these challenging alloys.
We can cast any material compositions as per customer’s specifications meeting to any of international standards specifications like is ASTM,AISI,DIN,EN,SAE Some of the general alloys that we handle regularly are listed below.
STAINLESS STEELS : CF8, CF8M, CF3, CF3M, CG3M, CG8M, CA-15, CA-40, CF3MN, CA6MN, CK-20, CN7M, CF8C, CE30, HK30, HK40, HF30, CG6MMN, Others.
NICKEL BASED STEELS : CW12MW, CX2MW, CW2M, CW6M, CW6MC, CZ100, CY40, N7M, N12MV, M35-1, M35-2, M30-C, M35-B, 50Cr-50Ni, 60Cr-40Ni ,Others.
STAINLESS STEELS : CF8, CF8M, CF3, CF3M, CG3M, CG8M, CA-15, CA-40, CF3MN, CA6MN, CK-20, CN7M, CF8C, CE30, HK30, HK40, HF30, CG6MMN, Others.
NICKEL BASED STEELS : CW12MW, CX2MW, CW2M, CW6M, CW6MC, CZ100, CY40, N7M, N12MV, M35-1, M35-2, M30-C, M35-B, 50Cr-50Ni, 60Cr-40Ni ,Others.
CARBON STEELS : WCB, LCC, LCB, WCC ,Others.
COBALT BASED ALLOYS : Stellite 6, Stellite 3, Stellite 21, Stellite 31 ,Others.
DUPLEX STAINLESS STEELS : CD4Mcu (Gr.1A), CE8MN (Gr.2A), CD6MN (Gr.3A), CD3MN (Gr.4A) ,CE3MN (Gr.5A) ,Others.
WEIGHT RANGE : Few Grams To 100 Kilograms Per Pieces.
MAXIMUM CASTING SIZE : 650mm x640mm x450mm.
STRAIGHTNESS : Flatness & straightness are 0.076 To 0.127Tir per linear 25.00 Millie Meter.
ANGLES : Angular Tolerance To ± 1/2° (Closer By Mechanical Corrections.
CAST LETTERS : Symbol,Alphabets,Numbers cam be possible its depend upon size of space Size of lettering. Splines and gear teeth may be cast in certain instances subject to prior agreement.
Tolerances & Dimensions
| Dimension | Maximum | Minimum. |
|---|---|---|
| Up To 12.70 | ±0.178 | ± 0.076 |
| 25.40 To 76.20 | ±0.254 | ±0.127 |
| 76.20 To 127.00 | ±0.508 | ±0.254 |
| 127.00 To 177.80 | ±0.635 | ±0.305 |
| Per 177.80 | ±0.889 | ±0.381 |
Roudness
| O.D.(mm) | Tolerance (mm) | I.D.(mm) | Tolerance (mm) |
|---|---|---|---|
| 12.50 | ±0.25 | upto 6.25 | ±0.30 |
| 25.00 | ±0.50 | 6.25-12.50 | ±0.40 |
| 37.5 | ±0.60 | 12.50-25.00 | ±0.50 |
| 50.00 | ±0.75 | Above 25.00 | ±0.50(Per 25mm) |
Flatness
| Casting Length | As Cast | Corrected |
|---|---|---|
| 25mm | ±0.20mm | ±0.10mm |
| 50mm | ±0.30mm | ±0.15mm |
| 75mm | ±0.50mm | ±0.25mm |
| 100mm | ±0.70mm | ±0.30mm |
Cast Holes
| Diameter mm | Depth mm |
|---|---|
| 3.00 – 6.00 | 10.00 – 20.00 |
| 6.00 -12.00 | 20.00 – 30.00 |
| Above 12.00 | 30.00 – Above 60.00 |
Thickness
| Material | Thickness |
|---|---|
| 18/8 Stainless Steels | 2.50mm |
| 25/12 Stainless Steels | 3.00mm |
| Carbon steels | 2.50mm |
| Cobalt-Chrome alloy | 1.00mm |
Surface Finish
| Metal l | C.I.A. Value Micro – Inches As-Cast |
|---|---|
| Stainless Steels | 90-126 |
| Cobalt Chrome Alloys | 80-100 |
| Carbon Steels | 90-125 |
Concentrically
| O.D.(mm) | I.D.(mm) | As Cast | Corrected |
|---|---|---|---|
| 18.75 | 6.25 | ±0.200 | ±0.100 |
| 25.00 | 12.50 | ±0.250 | ±0.125 |
| 37.50 | 18.45 | ±0.400 | ±0.200 |
| 50.00 | 25.00 | ±0.500 | ±0.250 |