China OEM custom carbon steel castings by lost wax investment casting process. We could provide 3.1 Material Certificate of the casting metal according to EN 10204 if you need. Available inspection methods: dimension testing by CMM, non-destructive testing, chemical composition, mechanical properties, hardness testing, static balancing, dynamic balancing, air pressure and water pressure.
According to the level of carbon content, carbon steel for casting is generally divided into low carbon steel, medium carbon steel and high carbon steel. The cast carbon steels of all countries in the world are generally classified according to their strength, and corresponding grades are formulated.
Regarding the chemical composition of carbon steel, except for phosphorus and sulfur, there are no restrictions or only upper limits on other chemical elements. Under the above premise, the chemical composition of cast carbon steel is determined by the foundry according to the required mechanical properties.
The heat treatment methods of carbon steel castings are usually annealing, normalizing or normalizing + tempering. For some high carbon steel castings, quenching and tempering can also be used, that is, quenching + high temperature tempering, so as to improve the comprehensive mechanical properties of carbon steel castings. Small carbon steel castings can be directly quenched and tempered from the as-cast state. For large-scale or complex-shaped carbon steel castings, it is appropriate to perform quenching and tempering treatment after normalizing treatment.
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Cast Carbon Steel Grade Comparison
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| No. | China | Japan | U.S.A. | ISO | Germany | France | Russia гост | Sweden SS | Britain | ||
| GB | JIS | ASTM | UNS | DIN | W-Nr. | NF | BS | ||||
| 1 | ZG200-400 (ZG15) | SC410 (SC42) | 415-205 (60-30) | J03000 | 200-400 | GS-38 | 1.0416 | - | 15л | 1306 | - |
| 2 | ZG230-450 (ZG25) | SC450 (SC46) | 450-240 965-35) | J03101 | 230-450 | GS-45 | 1.0446 | GE230 | 25л | 1305 | A1 |
| 3 | ZG270-500 (ZG35) | SC480 (SC49) | 485-275 (70-40) | J02501 | 270-480 | GS-52 | 1.0552 | GE280 | 35л | 1505 | A2 |
| 4 | ZG310-570 (ZG45) | SCC5 | (80-40) | J05002 | - | GS-60 | 1.0558 | GE320 | 45л | 1606 | - |
| 5 | ZG340-640 (ZG55) | - | - | J05000 | 340-550 | - | - | GE370 | - | - | A5 |
Capabilities of Investment Casting Foundry:
• Max Size: 1,000 mm × 800 mm × 500 mm
• Weight Range: 0.5 kg - 100 kg
• Annual Capacity: 2,000 tons
• Bond Materials for Shell Building: Silica Sol, Water Glass and their mixtures.
• Tolerances: On Request.
Advantages of Investment Casting Components:
- Excellent and smooth surface finish
- Tight dimensional tolerances.
- Complex and intricate shapes with design flexibility
- Capability to cast thin walls therefore a lighter casting component
- Wide selection of cast metals and alloys (ferrous and non-ferrous)
- Draft is not required in the molds design.
- Reduce the need for secondary machining.
- Low material waste.
| Materials for Investment Casting Process at RMC Foundry | |||
| Category | China Grade | US Grade | Germany Grade |
| Ferritic Stainless Steel | 1Cr17, 022Cr12, 10Cr17, | 430, 431, 446, CA-15, CA6N, CA6NM | 1.4000, 1.4005, 1.4008, 1.4016, GX22CrNi17, GX4CrNi13-4 |
| Martensitic Stainless Steel | 1Cr13, 2Cr13, 3Cr13, 4Cr13, | 410, 420, 430, 440B, 440C | 1.4021, 1.4027, 1.4028, 1.4057, 1.4059, 1.4104, 1.4112, 1.4116, 1.4120, 1.4122, 1.4125 |
| Austenitic stainless steel | 06Cr19Ni10, 022Cr19Ni10, 06Cr25Ni20, 022Cr17Ni12Mo2, 03Cr18Ni16Mo5 |
302, 303, 304, 304L, 316, 316L, 329, CF3, CF3M, CF8, CF8M, CN7M, CN3MN | 1.3960, 1.4301, 1.4305, 1.4306, 1.4308, 1.4313, 1.4321, 1.4401, 1.4403, 1.4404, 1.4405, 1.4406, 1.4408, 1.4409, 1.4435, 1.4436, 1.4539, 1.4550, 1.4552, 1.4581, 1.4582, 1.4584, |
| Precipitation Hardening Stainless Steel | 05Cr15Ni5Cu4Nb, 05Cr17Ni4Cu4Nb | 630, 634, 17-4PH, 15-5PH, CB7Cu-1 | 1.4542 |
| Duplex Stainless Steel | 022Cr22Ni5Mo3N, 022Cr25Ni6Mo2N | A 890 1C, A 890 1A, A 890 3A, A 890 4A, A 890 5A, A 995 1B, A 995 4A, A 995 5A, 2205, 2507 |
1.4460, 1.4462, 1.4468, 1.4469, 1.4517, 1.4770 |
| High Mn Steel | ZGMn13-1, ZGMn13-3, ZGMn13-5 | B2, B3, B4 | 1.3802, 1.3966, 1.3301, 1.3302 |
| Tool Steel | Cr12 | A5, H12, S5 | 1.2344, 1.3343, 1.4528, GXCrMo17, X210Cr13, GX162CrMoV12 |
| Heat Resistant Steel | 20Cr25Ni20, 16Cr23Ni13, 45Cr14Ni14W2Mo |
309, 310, CK20, CH20, HK30 | 1.4826, 1.4828, 1.4855, 1.4865 |
| Nickle-base Alloy | HASTELLY-C, HASTELLY-X, SUPPER22H, CW-2M, CW-6M, CW-12MW, CX-2MW, HX(66Ni-17Cr), MRE-2, NA-22H, NW-22, M30C, M-35-1, INCOLOY600, INCOLOY625 |
2.4815, 2.4879, 2.4680 | |
| Aluminum Alloy |
ZL101, ZL102, ZL104 | ASTM A356, ASTM A413, ASTM A360 | G-AlSi7Mg, G-Al12 |
| Copper Alloy | H96, H85, H65, HPb63-3, HPb59-1, QSn6.5-0.1, QSn7-0.2 |
C21000, C23000, C27000, C34500, C37710, C86500, C87600, C87400, C87800, C52100, C51100 | CuZn5, CuZn15, CuZn35, CuZn36Pb3, CuZn40Pb2, CuSn10P1, CuSn5ZnPb, CuSn5Zn5Pb5 |
| Cobalt-base Alloy | UMC50, 670, Grade 31 | 2.4778 | |
| INVESTMENT CASTING TOLERANCES | |||
| Inches | Millimeters | ||
| Dimension | Tolerance | Dimension | Tolerance |
| Up to 0.500 | ±.004" | Up to 12.0 | ± 0.10mm |
| 0.500 to 1.000” | ±.006" | 12.0 to 25.0 | ± 0.15mm |
| 1.000 to 1.500” | ±.008" | 25.0 to 37.0 | ± 0.20mm |
| 1.500 to 2.000” | ±.010" | 37.0 to 50.0 | ± 0.25mm |
| 2.000 to 2.500” | ±.012" | 50.0 to 62.0 | ± 0.30mm |
| 2.500 to 3.500” | ±.014" | 62.0 to 87.0 | ± 0.35mm |
| 3.500 to 5.000” | ±.017" | 87.0 to 125.0 | ± 0.40mm |
| 5.000 to 7.500” | ±.020" | 125.0 to190.0 | ± 0.50mm |
| 7.500 to 10.000” | ±.022" | 190.0 to 250.0 | ± 0.57mm |
| 10.000 to 12.500” | ±.025" | 250.0 to 312.0 | ± 0.60mm |
| 12.500 to 15.000 | ±.028" | 312.0 to 375.0 | ± 0.70mm |
