Shandong Laiduan Machinery Co.,ltd

Shandong Laiduan Machinery Co.,ltd  

Add:ZHAILI, LAIWU CITY-SHANDONG PROVINCE – CHINA

Con:Jun Li

Pho:(86)18606349977

Tel:(86)634 6512388

Fax:(86)634 6512388

Email:felix@laiwuforging.com

Forging Centrifugal Tube Pipe Mould

Pipe Mould is a tool for casting iron pipes with different sizes. Our pipe mould, which was made from 21CrMo10 or 20-30CrMo, is the most important tool in the process of spheroidal cast iron pipe dies. We provide all kinds of pipe mould from DN60 to DN1800. Whatever finished, half finished or...

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Details

Pipe Mould is a tool for casting iron pipes with different sizes. Our pipe mould, which was made from 21CrMo10 or 20-30CrMo, is the most important tool in the process of spheroidal cast iron pipe dies. We provide all kinds of pipe mould from DN60 to DN1800.

Whatever finished, half finished or just forgings, we ensure all of them with the highest quality at home through refined process of steel making, forging and heat treatment. We bored them with the same quality as the imported one from USA or Germany.

The capacity of produce of this products is 8000MT. It has been widely used in the every big spheroidal cast iron pipe enterprise and export a lot all over the world.

Service Life according to YB/Y4179 (pc)

SpecificationService life
SpecificationService life
DN80-DN100≥4800DN450
≥2000

DN150

≥4400DN500≥2000
DN200≥4000DN600≥2000
DN250≥3600DN700≥1400
DN300≥2600DN800≥1200
DN350≥2400DN900-DN12001000
DN400≥2000

Chemical Composition (m%)

GradeCSiMnCrMoPS
21CrMo100.16-0.230.20-0.400.20-0.402.20-2.600.30-0.50≤0.009≤0.009

The contents of harmful elements, such as lead, arsenic, tin, stibium, bismuth et. could be controlled according to the customers' requirements.

Mechanical Property

Grade
Rm (MPa)Rp0.2(MPa)A(%)Z(%)Ak(J)HBW
21CrMo10≥780≥650≥16≥60≥78≥240

The maximum difference of hardness for the full length pipe mould shall be no more than 40HBW.

Quality Control

1.During the smelting process, strict control is required both for the prescribed elements( 21 CrMo10), and for some harmful elements and gas, like P, S, Sn, As, Sb, Bi, and H, O, N.

2.To guarantee that the pipe moulds have reached our flaw detection standards, and that the forged blanks own refined grains, we have employed strictforging technique upon the ductile iron pipe moulds.

3. After roughing process (drilling inner holes), aquenching and tempering treatment is given by vertical pit furnace upon the pipe moulds for further refined grains and higher comprehensive mechanical propertied.

4. CNC equipment is adopted for finishing for high processing precision.

5.All of the propertied of our pipe moulds are superior than the GB/T 25715 centrifugal ductile iron pipe mould standards.

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