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Ductile iron casting
Ductile iron casting
Model No.︰-
Brand Name︰-
Country of Origin︰China
Unit Price︰-
Minimum Order︰-

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Product Description
Product Name: Ductile iron casting (automobile& machine tool fittings )
Material:
No: GB UNS Din NF
1 QT400-15 -- GGG-40 FGS400-15
2 QT400-18 F32800 ---- FGS400-18
3 QT450-10 F33100 ---- FGS450-10
4 QT500-7 F33800 GGG-50 FGS500-7
5 QT600-3 F3300,F34800 GGG-60 FGS600-3
6 QT700-2 F34800 GGG-70 FGS700-2
7 QT800-2 F36200 GGG-80 FGS800-2
8 QT900-2 F36200 ---- FGS900-2

Casting Tolerance & Linear Tolerance

Dimensions(mm)

Normal(mm)

Premium(mm)

3----10 0.36 0.26
11-----25 0.42 0.30
26-----63 0.50 0.36
64-----100 0.56 0.40
101-----160 0.62 0.44
161------250 0.70 0.50
251-----400 0.78 0.56

Acceptance at the base of Mechanical character

Casting Code Tensile Strength MPa(Kgf/mm2) Yield Strength MPa(Kgf/mm2) Percentage Elongation ¦Ä(%) Brinell Hardness

(HBS)
Major Metallurgic al Structure (For reference)
Minimum
QT400-15 400(40.80) 250(25.50) 15 130-180 Ferrite
QT450-10 450(45.80) 310(31.60) 10 160-210 Ferrite
QT500-7 500(51.00) 320(32.65) 7 170-230 Ferrite&Pearlite
QT600-3 600(61.20) 370(37.75) 3 190-270 Ferrite&Pearlite
QT700-2 700(71.40) 420(42.85) 2 225-335 Pearlite
QT800-2 800(81.60) 480(48.95) 2 245-335 Pearlite(or four
major
structures)
>QT900-2 900(91.80) 600(61.20) 2 280-360 Pearlite(or four
major

 
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Ductile iron casting
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