Cast Iron Parts: Resin Sand Casting
Product Description
Ductile iron is a high-strength cast iron material that is widely used in many mechanical parts that require strength, wear resistance and toughness. It has now become the most widely used cast iron material after gray iron, and its overall performance is close to that of steel. Our custom-made cast iron parts are designed specifically for industrial machinery parts, ensuring high strength and durability under heavy load conditions, and providing robust performance in various demanding environments.
Material Specifications and chemical composition
Grade | Casting thickness | Minimum tensile strength | Hardness HBW | Applications | |
Min | Max | ||||
HT200 | 2.5 | 220 | 157~236 | 170~220 | cylinders, gears, chassis, body, flywheel, rack, bushing, etc. |
10 | 195 | 148~222 | |||
20 | 170 | 134~200 | |||
HT250 | 4.0 | 270 | 175~262 | 190~240 | valve shell, oil cylinder, air cylinder, coupling, machine body, gear, gearbox housing, flywheel, bushing, cam bearing seat |
10 | 240 | 164~246 | |||
20 | 220 | 157~236 | |||
HT300 | 10 | 290 | 182~272 | 210~260 | gears, cams, shearing machines, high-pressure cylinders, hydraulic pumps, press bodies, etc. |
20 | 250 | 168~251 | |||
30 | 230 | 161~241 | |||
HT350 | 10 | 340 | 199~299 | 230~280 | |
20 | 290 | 182~272 | |||
30 | 260 | 171~257 | |||
Grade | Casting thickness | Chemical composition | ||||
C | Si | Mn | P | S | ||
HT200 | ＜15 15~30 30~50 | 3.2~3.6 3.1~3.5 3.0~3.4 | 1.9~2.2 1.8~2.1 1.5~1.8 | 0.6~0.9 0.7~0.9 0.8~1.0 | ＜0.15 | ≤0.12 |
＞50 | 3.0~3.2 | 1.4~1.7 | 0.8~1.0 | |||
HT250 | ＜15 15~30 30~50 ＞50 | 3.2~3.5 3.1~3.4 3.0~3.3 2.9~3.2 | 1.8~2.1 1.6~1.9 1.5~1.8 1.4~1.7 | 0.7~0.9 0.8~1.0 0.8~1.0 0.9~1.1 | ＜0.15 | ≤0.12 |
HT300 | ＜15 15~30 30~50 ＞50 | 3.1~3.4 3.0~3.3 2.9~3.2 2.8~3.1 | 1.5~1.8 1.4~1.7 1.4~1.7 1.3~1.6 | 0.8~1.0 0.9~1.1 0.8~1.0 1.0~1.2 | ＜0.15 | ≤0.12 |
Grade | C% | Si% | Mn% | P% | S% | Mg% | Cu% | Sn% |
400-18 | 3.50-3.78 | 2.80-2.85 | 0.20-0.50 | 0.03-0.06 | 0.02-0.35 | 0.02-0.06 | ||
450-10 | 3.30-3.80 | 2.40-2.90 | 0.2-0.5 | 0.03-0.06 | 0.02-0.04 | 0.02-0.06 | ||
500-7 | 3.20-3.60 | 2.30-2.90 | 0.40-0.60 | 0.03-0.06 | 0.02-0.40 | 0.03-0.055 | ＜0.4 | |
600-3 | 3.0-3.50 | 2.40-2.80 | 0.30-0.50 | 0.03-0.06 | 0.02-0.40 | 0.035-0.05 | 0.30-0.40 | |
700-2 | 3.65-3.90 | 1.70-1.90 | 0.30-0.50 | ＜0.06 | ＜0.03 | 0.035-0.05 | 0.30-0.40 | 0.03-0.06 |
Grade | Tensile strength | Elongation | HBW | Microstructure |
400-18 | 400 | 18 | 130-180 | Ferrite |
450-10 | 450 | 10 | 160-120 | Ferrite |
500-7 | 500 | 7 | 170-230 | Ferrite+Pearlite |
600-3 | 600 | 3 | 190-270 | Pearlite |
700-2 | 700 | 2 | 225-305 | Pearlite |
Application of cast iron parts
Our gray iron and ductile iron castings are extensively used in various parts:
Automobile and transmission parts: engine block, crankshaft, gears,gearbox housing, etc.
Agricultural and construction machinery: parts of equipment such as bulldozers and cranes, building structural parts, bridge supports, hydraulic engineering parts,etc.
Mining machinery parts: mining wheels, mining machinery chassis, mining machinery gears, etc.
Mechanical manufacturing: mainly used to manufacture various mechanical parts, such as machine tool beds, robot parts, reducer housings, etc.
Manufacturing Equipment
Our workshop has sand cooler, sand mixer, automatic sand systems, automatic moulding lines, clay sand department, coated sand department, resin sand department, CNC lathe, CNC machining center, automatic grinding lines, polishing machines, etc.
Quality Control
To ensure that every product meets the highest standards, we use various testing equipment, including:
• C/S Detectors
• Spectrometers
• Metallographic Microscopes
• Brinell Hardness Testers
• Carbon Silicon Analyzers
• Moisture Detectors
• Air Permeability Detectors
Why Choose Our Cast Iron Parts?
1. High Strength and Durability: Made from HT250 material, ensuring stable performance under heavy load conditions.
2. Precise Chemical Composition Control: Guaranteeing consistency and high quality in every batch.
3. Wide Application Range: Suitable for various parts of grain machines, meeting diverse customer needs.
4. Advanced Manufacturing and Testing Facilities: Ensuring that our products meet the highest quality standards.
