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2020 Good Quality Stainless Steel Investment Casting Products - Custom Alloy Steel Casting Product by Sodium Silicate Investment Casting – RMC Foundry

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2020 Good Quality Stainless Steel Investment Casting Products - Custom Alloy Steel Casting Product by Sodium Silicate Investment Casting – RMC Foundry Detail:

Investment casting (lost wax casting) is a method of precision casting process which can product complex near-net-shape details using replication of wax patterns. Investment casting or lost wax is a metal forming process that typically uses a wax pattern surrounded by a ceramic shell to make a ceramic mold. When the shell dries, the wax is melted away, leaving only the mold. Then the casting component is formed by pouring molten metal into the ceramic mold.

According to the different binders for shell building, the investment casting could be divided into silica sol binder investment casting, water glass binder investment casting and the investment casting with their mixtures as binder materials.

Water glass, also known as Sodium Silicate, is a kind of soluble alkali metal silicate, which is glassy in solid state and forms a water glass solution when dissolved in water. According to the difference of the alkali metals contained, there are two types of potassium water glass and soda water glass. The latter is easily soluble in water, contains less impurities, and has stable performance. Therefore, the water glass for investment casting is sodium water glass, namely Na20·mSiO2, A transparent or translucent colloidal aqueous solution formed after hydrolysis. The main chemical components of water glass are silicon oxide and sodium oxide. In addition, it also contains a small amount of impurities. Water glass is not a single compound, but a mixture of multiple compounds.

In the investment casting process, the water glass binder and coating have stable performance, low price, short shell-making cycle and convenient application. The water glass shell making process is suitable for the production of investment castings such as carbon steel, low-alloy steel, cast iron, copper and aluminum alloys that require less surface quality.

Custom alloy steel casting machinery spare parts by lost wax investment casting process with water glass (the aqueous solution of sodium silicate) as the binder materials for shell making. The quality of shell making influent the accuracy of the final castings and therefore is a very critical process during investment casting. The quality of the shell is directly related to the roughness and dimensional tolerance of the final casting. Therefore, it is an important task for the investment casting foundry to choose a suitable manufacturing method for the mold shell. According to different adhesives or binder materials for making the mold shell, investment casting molds can be divided into water glass adhesive shells, silica sol adhesive shells, ethyl silicate adhesive shells and ethyl silicate-silica sol composite shells. These modeling methods are the most commonly used methods in investment casting.

Mold Shell by Water Glass (aqueous solution of sodium silicate)
The investment casting produced by the water glass shell casting has high surface roughness, low dimensional accuracy, short shell-making cycle and low price. This process is widely used in casting carbon steel, low alloy steel, aluminum alloy and copper alloy.

Mold Shell by Silica Sol Shell (a dispersion of nano-scale silica particles in water or solvent)
The silica sol investment casting has low roughness, high dimensional accuracy, and long shell-making cycle. This process is widely used in high-temperature heat-resistant alloy castings, heat-resistant steel castings, stainless steel castings, carbon steel castings, low alloy castings, aluminum alloy castings and copper alloy castings.

Mold Shell by Ethyl Silicate Shell
In investment casting, castings made by using ethyl silicate as a binder to make the shell have low surface roughness, high dimensional accuracy, and a long shell-making cycle. This process is widely used in heat-resistant alloy castings, heat-resistant steel castings, stainless steel castings, carbon steel castings, low alloy castings, aluminum alloy castings and copper alloy castings.

Carbon steel, low alloy steel, and tool steel castings are used in several industrial applications and environments. With their numerous grades, steel and their alloys can be heat-treated to improve its yield and tensile strength; and, adjust hardness or ductility to the engineer’s application needs or desired mechanical properties.

Wear-resistant alloy steel investment castings are the casting parts produced by lost wax investment casting process made of wear-resistant alloy steel. At RMC Foundry, the main sand casting processes we could use for wear-resistant alloy steel are green sand casting, resin coated sand casting, no-bake sand mold casting, lost foam casting, vacuum casting and investment casting. The heat treatment, surface treatment and CNC machining are also available at our factory as per your drawings and requirements.

Among a wide variety of casting alloys, wear-resistant cast steel is a very widely used alloy steel. Wear-resistant cast steel mainly improves the wear resistance of steel castings by adding different content of alloying elements, such as manganese, chromium, carbon, etc., to the alloy. At the same time, the wear resistance of wear-resistant steel castings also depends on the heat treatment method used by the foundry and the structure of the casting.

According to different wear characteristics, the wear of steel castings can be divided into abrasive wear, adhesive wear, fatigue wear, corrosion wear and fretting wear. Wear-resistant steel castings are mainly used in industrial fields with complex working conditions and high mechanical performance requirements, such as mining, metallurgy, construction, power, petrochemical, water conservancy, agriculture and transportation industries. Wear-resistant steel castings are mostly used in abrasion conditions with a certain impact load, such as grinding equipment, excavators, crushers, tractors, etc.

Equivalent Grade of Cast Alloy Steel from Different Markets
GROUPS AISI W-stoff DIN BS SS AFNOR U.N.E. / I.H.A. JIS UNI
Low Alloy Steel 9255 1.0904 55 Si 7 250 A 53 2090 55 S 7 56Si7 - 5SSi8
1335 1.1167 36 Mn 5 150 M 36 2120 40 M 5 36Mn5 SMn 438(H) -
1330 1.1170 28 Mn 6 150 M 28 - 20 M 5 - SCMn1 C28MN
P4 1.2341 X6 CrMo 4 - - - - - -
52100 1.3505 100 Cr 6 534 A 99 2258 100 C 6 F.131 SUJ 2 100Cr6
A204A 1.5415 15 Mo 3 1501 240 2912 15 D 3 16 Mo3 STBA 12 16Mo3 KW
8620 1.6523 21 NiCrMo 2 805 M 20 2506 20 NCD 2 F.1522 SNCM 220(H) 20NiCrMo2
8740 1.6546 40NiCrMo22 311-Type 7 - 40 NCD 2 F.129 SNCM 240 40NiCrMo2(KB)
- 1.6587 17CrNiMo6 820 A 16 - 18 NCD 6 14NiCrMo13 - -
5132 1.7033 34 Cr 4 530 A 32 - 32 C 4 35Cr4 SCr430(H) 34Cr4(KB)
5140 1.7035 41 Cr 4 530 A 40 - 42 C 2 42 Cr 4 SCr 440 (H) 40Cr4
5140 1.7035 41 Cr 4 530 A 40 - 42 C 2 42 Cr 4 SCr 440 (H) 41Cr4 KB
5140 1.7045 42 Cr 4 530 A 40 2245 42 C 4 TS F.1207 SCr 440 -
5115 1.7131 16 MnCr 5 (527 M 20) 2511 16 MC 5 F.1516 - 16MnCr5
5155 1.7176 55 Cr 3 527 A 60 2253 55 C 3 - SUP 9(A) 55Cr3
4130 1.7218 25 CrMo 4 1717CDS 110 2225 25 CD 4 F.1251/55Cr3 SCM 420 / SCM430 25CrMo4(KB)
4135 (4137) 1.7220 35 CrMo 4 708 A 37 2234 35 CD 4 34 CrMo 4 SCM 432 34CrMo4KB
4142 1.7223 41 CrMo 4 708 M 40 2244 42 CD 4 TS 42 CrMo 4 SCM 440 41 CrMo 4
4140 1.7225 42 CrMo 4 708 M 40 2244 40 CD 4 F.1252 SCM 440 40CrMo4
4137 1.7225 42 CrMo 4 708 M 40 2244 42 CD 4 F.1252 SCM 440 42CrMo4
A387 12-2 1.7337 16 CrMo 4 4 1501 620 2216 15 CD 4.5 - - 12CrMo910
- 1.7361 32CrMo12 722 M 24 2240 30 CD 12 F.124.A - 30CrMo12
A182 F-22 1.7380 10 CrMo9  10 1501 622 2218 12 CD 9, 10 F.155 / TU.H - 12CrMo9 10
6150 1.8159 50 CrV 4 735 A 50 2230 50 CV 4 F.143 SUP 10 50CrV4
- 1.8515 31 CrMo 12 722 M 24 2240 30 CD 12 F.1712 - 30CrMo12
- - - - - - - - -
Medium Alloy Steel W1 1.1545 C105W1 BW1A 1880 Y 105 F.5118 SK 3 C100 KU
L3 1.2067 100Cr6 BL 3 (2140) Y 100 C 6 F.520 L - -
L2 1.2210 115 CrV 3 - - - - - -
P20 + S 1.2312 40 CrMnMoS 8 6 - - 40 CMD 8 +S X210CrW12 - -
- 1.2419 105WCr6 - 2140 105W C 13 F.5233 SKS 31 107WCr5KU
O1 1.2510 100 MnCrW 4 BO1 - 90MnWCrV5 F.5220 (SK53) 95MnWCr5KU
S1 1.2542 45 WCrV 7 BS1 2710 55W20 F.5241 - 45WCrV8KU
4340 1.6582 34 CrNiMo 6 817 M 40 2541 35 NCD 6 F.1280 SNCM 447 35NiCrMo6KB
5120 1.7147 20 MnCr 5 - - 20 MC 5 - - -
- - - - - - - - -
Tool and High Alloy Steel D3 1.2080 X210 Cr 12 BD3 2710 Z200 C 12 F.5212 SKD 1 X210Cr13KU
P20 1.2311 40 CrMnMo 7 - - 40 CMD 8 F.5263 - -
H13 1.2344 X40CrMoV 5 1 BH13 2242 Z 40 CDV 5 F.5318 SKD 61 X40CrMoV511KU
A2 1.2363 X100 CrMoV 5 1 BA2 2260 Z 100 CDV 5 F.5227 SKD 12 X100CrMoV51KU
D2 1.2379 X155 CrMoV 12 1 BD2 2310 Z 160 CDV 12 F.520.A SKD11 X155CrVMo121KU
D4 (D6) 1.2436 X210 CrW 12 BD6 2312 Z 200 CD 12 F.5213 SKD 2 X215CrW121KU
H21 1.2581 X30WCrV9 3 BH21 - Z 30 WCV 9 F.526 SKD5 X30WCrV 9 3 KU
L6 1.2713 55NiCrMoV 6 - - 55 NCDV 7 F.520.S SKT4 -
M 35 1.3243 S6/5/2/5 BM 35 2723 6-5-2-5 F.5613 SKH 55 HS6-5-5
M 2 1.3343 S6/5/2 BM2 2722 Z 85 WDCV F.5603 SKH 51 HS6-5-2-2
M 7 1.3348 S2/9/2 - 2782 2 9 2 - - HS2-9-2
HW 3 1.4718 X45CrSi 9 3 401 S 45 - Z 45 CS 9 F.3220 SUH1 X45CrSi8
- 1.7321 20 MoCr 4 - 2625 - F.1523 - 30CrMo4
High Tensile Strength Steel A128 (A) 1.3401 G-X120 Mn 12 BW10 2183 Z 120 M 12 F.8251 SCMnH 1 GX120Mn12

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

precision lost wax casting foundry

 

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

 

Investment Casting Technical Data

investment casting process-1
investment casting process-2
Precision Investment Casting Products

OEM Custom Investment Casting Products


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2020 Good Quality Stainless Steel Investment Casting Products -
 Custom Alloy Steel Casting Product by Sodium Silicate Investment Casting – RMC Foundry detail pictures


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Now we have superior devices. Our solutions are exported to your USA, the UK and so on, enjoying a superb name between customers for 2020 Good Quality Stainless Steel Investment Casting Products - Custom Alloy Steel Casting Product by Sodium Silicate Investment Casting – RMC Foundry, The product will supply to all over the world, such as: Indonesia , Palestine , Austria , With excellent solutions, high quality service and sincere attitude of service, we ensure customer satisfaction and help customers create value for mutual benefit and create a win-win situation. Welcome customers all over the world to contact us or visit our company. We'll satisfy you with our qualified service!
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