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Tailor-made Gray Cast Iron Sand Casting

Tailor-made Gray Cast Iron Sand Casting

Material: HT-250, GG-25 Cast Gray Iron
Process: Green Sand Casting or Pre-Coated Shell Casting
Weight: 25 kg
Application: Truck

OEM Custom Gray Iron Sand Casting Part with Green Sand Casting or Resin-Sand Pre-Coated Shell Molding Casting Processes. Main available materials: Cast Gray Iron, Cast Nodular Iron, Carbon Steel and Alloy Steel.

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Description

OEM Custom Gray Cast Iron Sand Casting Part from China Iron Foundry with Green Sand Casting and Shell Mold Casting Processes

Grey cast iron (also called grey cast iron) is a group of cast iron including several kinds of grade according to different designation of diverse standards. Gray cast iron is a kind of iron-carbon alloy and it gets its name "grey" from the fact that their cutting sections looks grey. The metallographic structure of gray cast iron is mainly composed of flake graphite, metal matrix and grain boundary eutectic. During the grey iron, the Carbon is in the flake graphite. As one of the widely used casting metals, cast gray iron has many advangates in costs, castability and machinablity.


Mechanical Properties of Gray Cast Iron

Item according to DIN EN 1561 Measure Unit EN-GJL-150 EN-GJL-200 EN-GJL-250 EN-GJL-300 EN-GJL-350
EN-JL 1020 EN-JL 1030 EN-JL 1040 EN-JL 1050 EN-JL 1060
Tensile Strength Rm MPA 150-250 200-300 250-350 300-400 350-450
0.1% Yield Strength Rp0,1 MPA 98-165 130-195 165-228 195-260 228-285
Elongation Strength A % 0,3 – 0,8 0,3 – 0,8 0,3 – 0,8 0,3 – 0,8 0,3 – 0,8
Compressive Strength σdB MPa 600 720 840 960 1080
0,1% Compressive Strength σd0,1 MPa 195 260 325 390 455
Flexural Strength σbB MPa 250 290 340 390 490
Schuifspanning σaB MPa 170 230 290 345 400
Shear Stress TtB MPa 170 230 290 345 400
Modules of elasticity E GPa 78 – 103 88 – 113 103 – 118 108 – 137 123 – 143
Poisson number v – 0,26 0,26 0,26 0,26 0,26
Brinell hardness HB 160 – 190 180 – 220 190 – 230 200 – 240 210 – 250
Ductility σbW MPa 70 90 120 140 145
Tension and pressure change σzdW MPa 40 50 60 75 85
Breaking Strength Klc N/mm3/2 320 400 480 560 650
Density g/cm3 7,10 7,15 7,20 7,25 7,30

▶ Raw Materials Available for Sand Casting

  • Gray Iron: GG-10 ~ GG-35, GJL-100, GJL-150, GJL-200, GJL-250, GJL-300, GJL-350, HT100 ~ HT350.
  • Ductile Iron: GJS-400-18, GJS-40-15, GJS-450-10, GJS-500-7, GJS-600-3, GJS-700-2, GJS-800-2
  • Aluminium and Their Alloys
  • Carbon Steel, Alloy Steel, Stainless Steel or other Materials and Standards on request

▶ Capabilities of Sand Casting moulded by hand at RMC's Iron Foundry

  • Sand Casting Max Size: 1,500 mm × 1000 mm × 500 mm
  • Weight Range: 0.5 kg - 500 kg
  • Annual Capacity: 5,000 tons - 6,000 tons
  • Tolerances: On Request.

▶ Capabilities of Sand Casting by Automatic Molding Machines at RMC's Sand Foundry

  • Max Size: 1,000 mm × 800 mm × 500 mm
  • Weight Range of Sand Castings: 0.5 kg - 500 kg
  • Annual Capacity: 8,000 tons - 10,000 tons
  • Tolerances: On Request.

▶ Main Production Procedure of Sand Casting

  • Patterns & Tooling Design → Making Patterns → Moulding Process → Chemical Composition Analysis → Melting & Pouring → Cleaning, Grinding & Shot Blasting → Post Processing or Packing for Shipment

▶ Sand Casting Inspection Capabilities

  • Spectrographic and manual quantitative analysis
  • Metallographic analysis
  • Brinell, Rockwell and Vickers hardness inspection
  • Mechanical property analysis
  • Low and normal temperature impact testing
  • Cleanliness inspection
  • UT, MT and RT inspection

▶ Post-Casting Process

  • Deburring & Cleaning
  • Shot Blasting / Sand Peening
  • Heat Treatment: Normalization, Quench, Tempering, Carburization, Nitriding
  • Surface Treatment: Passivation, Andonizing, Electroplating, Hot Zinc Plating, Zinc Plating, Nickel Plating, Polishing, Electro-Polishing, Painting, GeoMet, Zintec
  • Machining: Turning, Milling, Lathing, Drilling, Honing, Grinding,

▶ General Commerial Terms

  • Main workflow: Inquiry & Quotation → Confirming Details / Cost Reduction Proposals → Tooling Development → Trial Casting → Samples Approval → Trial Order → Mass Production → Continuous Order Proceeding
  • Leadtime: Estimatedly 15-25 days for tooling development and estimatedly 20 days for mass production.
  • Payment Terms: To be negotiated.
  • Payment methods: T/T, L/C, West Union, Paypal.


Advantages of Sand Casting Process

  • Low Cost due to its cheap and recyclable mold materials and simple production equipment.
  • Wide range of unit weight from 0.10 kg to 500 kgs or even bigger.
  • Various Structure from simple type to complex type.
  • Suitable for production requirements of various quantity.

cast iron foundry in China


Capabilities for Casting at RMC
Casting Process Annual Capacity / Tons Main Materials Casting Weights Dimensional Tolerance Grade of Castings (ISO 8062) Heat Treatment
Green Sand Casting 6000 Cast Gray Iron, Cast Ductile Iron, Cast Aluminium, Brass, Cast Steel, Stainless Steel 0.3 kg to 200 kg CT11~CT14 Normalization, Quenching, Tempering, Annealing, Carburization
Shell Mold Casting 0.66 lbs to 440 lbs CT8~CT12
Lost Wax Investment Casting Water Glass Casting 3000 Stainless Steel, Carbon Steel, Steel Alloys, Brass, Cast Aluminium, Duplex Stainless Steel 0.1 kg to 50 kg CT5~CT9
0.22 lbs to 110 lbs
Silica Sol Casting 1000 0.05 kg to 50 kg CT4~CT6
0.11 lbs to 110 lbs
Lost Foam Casting 4000 Gray Iron, Ductile Iron, Steel Alloys, Carbon Steel, Stainless Steel 10 kg to 300 kg CT8~CT12
22 lbs to 660 lbs
Vacuum Casting 3000 Gray Iron, Ductile Iron, Steel Alloys, Carbon Steel, Stainless Steel 10 kg to 300 kg CT8~CT12
22 lbs to 660 lbs
High Pressure Die Casting 500 Aluminium Alloys, Zinc Alloys 0.1 kg to 50 kg CT4~CT7
0.22 lbs to 110 lbs