Available Materials for Investment Casting at RMC


Investment casting, or lost wax casting, refers to the formation of ceramic around the wax patterns to create a multi or single part mold to receive molten metal. This process utilizes an expendable injection molded wax pattern process to achieve complex forms with exceptional surface qualities. Because the investment castings can achieve exceptional dimension accuracy for both small and large casting parts, the investment casting is also called precision casting.


To create a mold, a wax pattern, or cluster of patterns, is dipped into ceramic material several times to build a thick shell. De-wax process is then followed by the shell dry process. The wax-less ceramic shell is then produced. Molten metal is then poured into the ceramic shell cavities or cluster, and once solid and cooled, the ceramic shell is broken off to reveal the final cast metal object.

Silica sol casting process is the main steel investment casting process of RMC investment casting foundry. We have been developing new technology of adhesive material to achieve much more economical and effective adhesive material for investment casting industry.

It is a overwhelming trend that Silica sol casting process replaces the rough inferior water glass process in whole precision casting industry, especially for stainless steel casting and alloy steel casting. Besides the innovated molding material, the silica sol casting process has also being innovated to much steadier and less heat expanding.

RMC manufactures precision cast metal parts that consistently meet or exceed customer expectations. Lost wax investment casting allows us to produce metal parts as small as tens of grams and as large as tens of kilograms, in a wide range of ferrous and non-ferrous alloys. We could use a wide range of materials for investment casting process. Here in the following are the main alloys we can use for your usage. Of course, we can also cast more metal if you have special need.


Materials for Investment Casting Process at RMC
Category China Grade UK Grade US Grade Japan Grade Germany Grade
Carbon Steel ZG15, ZG20, ZG25, ZG35, ZG45, ZG55, Q235, Q345, Q420 A1, A3, A5, CLA1A, CLA1C, AM1 1008, 1015, 1018, 1020,
1025, 1030, 1035, 1040,
1045, 1050, 1060, 1070, WC6, WCC, WCB, WCA, LCB
SC360, SC450, SC480, SCW410, SCW450, SCW550, SCW620, SCC5, S15C, S20C, S25C, S45C, S50C 1.0570, 1.0558, 1.1191, 1.0619, 1.0446, GS38, GS45, GS52, GS60, 1.0601, C20, C25, C30, C45
Low Alloy Steel 20Mn, 45Mn, ZG20Cr, 40Cr, 20Mn5, 16CrMo4, 42CrMo,
40CrV, 20CrNiMo, GCr15, 9Mn2V
CLA2, CLA3, CLA4, CLA8, CLA5A, CLA5B, CLA9, CLA11, CLA12B, CLA12C, CLA13, CLA1B, EN1A, EN8, EN9, EN14, EN19, EN24, EN32B, PD100A, NCM3, NCM5, NCM8, NCM32 1117, 4130, 4140, 4340, 6150, 5140, WC6, LCB, Gr.13Q, 8620, 8625, 8630, 8640, H13 SCM415, SCM435, SCM440, SCM445, SKS3 GS20Mn5, GS15CrNi6, GS16MnCr5, GS25CrMo4V, GS42CrMo4, S50CrV4,
34CrNiMo6, 50CrMo4, G-X35CrMo17, 1.1131, 1.0037, 1.0122, 1.2162, 1.2542, 1.6511, 1.6523, 1.6580, 1.7131, 1.7132, 1.7218, 1.7225, 1.7227, 1.7228, 1.7231, 1.7321, 1.8519, ST37, ST52
Ferritic Stainless Steel 1Cr17, 022Cr12, 10Cr17, ANC1B 430, 431, 446, CA-15, CA6N, CA6NM SCS1, SCS1X, SCS3, CS3X, SCS4, SCS5, SCS6 1.4000, 1.4005, 1.4008, 1.4016, GX22CrNi17, GX4CrNi13-4
Martensitic Stainless Steel
1Cr13, 2Cr13, 3Cr13, 4Cr13, ANC1C, ANC2 410, 420, 430, 440B, 440C SCS2, SCS2A 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
ANC3A, ANC3B, ANC3ALC, ANC3AFC, ANC3BFC, ANC4B, ANC4BFC, ANC20, 316C12, 316S16, 316C16, 347C17 302, 303, 304, 304L, 316, 316L, 329, CF3, CF3M, CF8, CF8M, CN7M, CN3MN SCS11, SCS13, SCS14, SCS14A, SCS16, SCS16A, SCS18, SCS21, SCS35 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 SS 05Cr15Ni5Cu4Nb, 05Cr17Ni4Cu4Nb ANC20, ANC21, ANC22 630, 634, 17-4PH, 15-5PH, CB7Cu-1 SCS24, SCS32 1.4542
High Mn Steel ZGMn13-1, ZGMn13-3, ZGMn13-5 BW10 B2, B3, B4 SCMnH1, SCMnH11, SCMnH21 1.3802, 1.3966, 1.3301, 1.3302
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
SCS10, SCS11 1.4460, 1.4462, 1.4468, 1.4469, 1.4517, 1.4770
Tool Steel Cr12 A5, H12, S5 SKD11, SKH9, SKH51 1.2344, 1.3343, 1.4528, GXCrMo17, X210Cr13, GX162CrMoV12
Heat Resistant Steel 20Cr25Ni20, 16Cr23Ni13,
45Cr14Ni14W2Mo
ANC5A 309, 310, CK20, CH20, HK30 SCH1, SCH2, SCH11, SCH13, SCH15, SCH21, SCH22, SCH24, SCH41, 1.4826, 1.4828, 1.4855, 1.4865
Nickle-base Alloy ANC19 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
SCH43, SCH44, SCH45, 2.4815, 2.4879, 2.4680
Aluminum Alloy ZL101, ZL102, ZL104 ASTM A356, ASTM A413, ASTM A360 AC3A, AC4A, AC4C G-AlSi7Mg, G-Al12
Copper Alloy H96, H85, H65, HPb63-3,
HPb59-1, QSn6.5-0.1, QSn7-0.2
CZ125, CZ102, CZ107, CZ124, CZ122 C21000, C23000, C27000, C34500, C37710, C86500, C87600, C87400, C87800, C52100, C51100 C2100, C2300, C2700, C3560, C3771, C5212, C5111 CuZn5, CuZn15, CuZn35, CuZn36Pb3, CuZn40Pb2, CuSn10P1, CuSn5ZnPb, CuSn5Zn5Pb5
Cobalt-base Alloy UMC50, 670, Grade 31 2.4778



The lost wax casting process produces near-net-shape precision metal parts that often require little or no additional machining. The resulting finish is also much better than what is achievable through other processes. The strength and durability of the casting parts make themselves ideal for high wear-resistance applications requiring millions of cycles.

Whether we're casting small metal parts in carbon steel or large, intricate shapes in specialty non-ferrous alloys, RMC can deliver precision metal cast parts that perfectly match your designs and usage. We offer design assistance, as needed, to help improve both your part's function and its manufacturability. From the simplest shape to the most complex geometry, we can turn your designs into reality.




Contact Us

Add: No. 58, Lingshanwan Road, Huangdao, Qingdao, China

Phone: +86 186 6184 7678

Fax: +86 532 8687 1520

Email: info@rinborn.com


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