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Ductile Iron Casting Manufacturer in China

 

Dandong Foundry supply a full range of ductile iron castings from 0.50kg up to 1,000kg.

  • Engineered castings with structural functions.
  • Full range of materials available.
  • High tensile strength.
  • Equipment to ensure precision products.

 

Product Material and Uses:
The ductile iron casting products are widely used for Auto-cars, trains, trucks, vehicle components, mining machinery components, agricultural machinery parts, textile machinery parts, construction machinery parts, valves and pump parts, etc.

The followings are Ductile Iron Grade Charts:

ASTM A536 1993 (USA)

Grade

Tensile Strength
σ≥/Mpa

Yield Strength
σ≥/Mpa

Elongation
δ≥(%)

ANSI/ASTM

UNS

60-40-18

F32800

414

276

18

65-45-12

F33100

448

310

12

80-55-06

F33800

552

379

6.0

100-70-03

F34800

689

483

3.0

120-90-02

F36200

827

621

2.0

Special Purpose

60-42-10

415

290

10

70-50-05

485

345

5.0

80-60-03

555

415

3.0

GB/T 1348 1998 (China)

Grade

Tensile strength
σb≥/MPa

Yield strength
σ0.2≥/MPa

Elongation
δ5≥(%)

Hardness
HBS

QT400-18
QT400-18-LT*

400

250

18

130~180

QT400-15

400

250

15

130~180

QT450-10

450

310

10

160~210

QT500-7

500

320

7

170~230

QT600-3

600

370

3

190~270

QT700-2

700

420

2

225~305

QT800-2

800

480

2

245~335

QT900-2

900

600

2

280~360

Low temperature V notch impact tested (-20±2℃)

EN 1563 1997 (European Standard)

Grade

Tensile Strength
σ≥/Mpa

Yield Strength
σ≥/Mpa

Elongation
δ≥(%)

Symbol

Number

EN GJS 350-22

EN JS1010

350

220

22

EN GJS 350-22-LT*

EN JS1015

350

220

22

EN GJS 400-18

EN JS1020

400

250

18

EN GJS 400-18-LT*

EN JS1025

400

240

18

EN GJS 400-15

EN JS1030

400

250

15

EN GJS 450-10

EN JS1040

450

310

10

EN GJS 500-7

EN JS1050

500

320

7

EN GJS 600-3

EN JS1060

600

370

3

EN GJS 700-2

EN JS1070

700

420

2

EN GJS 800-2

EN JS1080

800

480

2

EN GJS 900-2

EN JS1090

900

600

2


Low temperature V notch impact tested (-20±2℃)

Common Ductile Iron Grades

While there are many different ductile iron specifications, foundries routinely offer 3 common grades;

Physical and Mechanical Properties

ASTM A536, Grade 60-40-18

ASTM A536, Grade 65-45-12

ASTM A536, Grade 80-55-06

Tensile Strength, min, psi

60,000

65,000

80,000

Tensile Strength, min, MPa

414

448

552

Yield Strength, min, psi

40,000

45,000

55,000

Yield Strength, min, MPa

276

310

379

Elongation in 2 in. or 50 mm, min %

18

12

6

Density lb/in3

0.256

0.256

0.256

Density g/cm3

7.1

7.1

7.1

Melting Temperature (Degrees F)

2,100 – 2,190

2,100 – 2,190

2,100 – 2,190

Melting Temperature (Degrees C)

1,150 - 1,200

1,150 - 1,200

1,150 - 1,200

Compressive Strength Ksi

429

429

429

Compressive Strength MPa

2960

2960

2960

UNS

F32800

F33100

F33800

 

 

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