flange ductile iron pipes from China manufacturer

Payment Terms:	L/C
Place of Origin:	Henan, China (Mainland)


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Product Detail

Means of Transport: Ocean

Production range: DN75MM-DN1000MM

Accuracy: 0.1mm

Technique: Others

Material: 21CrMo10

Ductile iron pipe mould
Accuracy: 0.1mm
Concentricity: 1.1-1.9mm
Draft Taper: 0-0.9mm
Hardness: HB 230-270

General Technical Information of Ductile iron pipe mould

1)Production range:DN75MM-DN1000MM Ductile iron pipe mould

2) Material: 21CrMo10

Chemical Composition of Ductile iron pipe mould

C	Si	Mn	P	S	Cr	Mo	Cu
0.16~0.23	0.20~0.40	0.20~0.40	≤0.015	≤0.009	2.20~2.60	0.30~0.50	≤0.20

3)Mechanical Properties of Ductile iron pipe mould

Tensile Strength σb Mpa	Yield Strength σs Mpa	Elongation δ %	Reduction Area ψ %
750~850	≥650	≥16	≥60

4) Ultrasonic Test of Ductile iron pipe mould

The forging of the mould will be ultrasonically tested as per JB/T1581-1996 or equivalent standard, details as follows:

A Without bursts, crack, shrinking hole and other defects.

B The defect with size within ￠2mm can be ignored.

C Individual defect with diameter of φ2~φ4mm is permitted, and the distance of the neighboring defects should be more than the 10 times of the bigger one's. For 100cm2' s area, the quantities of the defects with diameter of φ2~φ4mm should not exceed 3.

D There should not have compact district.
Ductile iron pipe mould

5) Other items of Ductile iron pipe mould

Finish: Ra1.6

Accuracy: 0.1mm

Concentricity: 1.1-1.9mm

Draft Taper: 0-0.9mm

Hardness: HB 230-270