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Iron Cast

Common cast irons include ductile iron, gray cast iron, white cast iron, malleable cast iron, vermicular graphite cast iron and alloy cast iron.
Cast iron material is a common industrial material and is widely used in many fields. Cast iron materials have the characteristics of high strength, good wear resistance, strong corrosion resistance, and good thermal conductivity.
If you have any needs for cast iron castings, please feel free to contact us, Jinhong will provide you with the best solution and the highest quality service.
Ductile cast iron is a high-strength cast iron material whose comprehensive performance is close to that of steel. Based on its excellent performance, it has been successfully used to cast parts with complex stresses and high requirements for strength, toughness, and wear resistance.
Many industries require castings to meet high strength, plasticity, toughness, wear resistance, resistance to severe thermal and mechanical impact, resistance to high or low temperatures, corrosion resistance and dimensional stability. In order to meet these changes in usage conditions, ductile iron has many grades which can offer a wide range of mechanical and physical properties.

Ductile Cast Iron Grade And Mechanical Property

Grade
QT900-2
QT800-2
QT700-2
QT600-3
QT500-7
QT450-10
QT400-15
QT400-18
Tensile Strength σb/MPa
≥900
≥800
≥700
≥600
≥500
≥450
≥400
≥400
Yield Strength σ0.2/MPa
≥600
≥480
≥420
≥370
≥320
≥310
≥250
≥250
Elongation δ(%)
≥2
≥2
≥2
≥3
≥7
≥10
≥15
≥18
Hardness HBS
280-360
245-335
225-305
190-270
170-230
160-210
130-180
130-180

Ductile Iron Casting Samples

Gray cast iron is the most widely used cast iron, and its output accounts for more than 80% of the total cast iron output. Gray cast iron has good casting and cutting properties and good wear resistance. Used for manufacturing racks, boxes, etc. Although gray cast iron has lower strength, plasticity, and toughness than other cast irons, it has excellent vibration damping, low notch sensitivity, and high wear resistance.
In order to meet the requirements from different customers, gray cast iron has many grades which can offer a wide range of mechanical and physical properties.

Gray Cast Iron Grade And Mechanical Property

Grade
Casting Section Thickness/mm
Mechanical property
σb/MPa
HBS
HT100
2.5-10
10-20
20-30
30-50
≥130
≥100
≥90
≥80
10-166
93-140
87-131
82-122
HT150
2.5-10
10-20
20-30
30-50
≥175
≥145
≥130
≥120
137-205
119-179
110-166
105-157
HT200
2.5-10
10-20
20-30
30-50
≥220
≥195
≥170
≥160
157-236
148-222
134-200
129-192
HT250
4.0-10
10-20
20-30
30-50
≥270
≥240
≥220
≥200
175-262
164-247
157-236
150-225
HT300
10-20
20-30
30-50
≥290
≥250
≥230
182-272
168-251
161-241
HT350
10-20
20-30
30-50
≥340
≥290
≥260
199-298
182-272
171-257

Gray Iron Casting Samples

Jinhong Shukong Machinery Casting Co., Ltd. is a parts manufacturer integrating casting and machining. With decades of casting experience, it is committed to providing customers with the best service.

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Email:info@jhskcasting.com
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