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）
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Chemical Composition (m%)
The contents of harmful elements, such as lead, arsenic, tin, stibium, bismuth et. could be controlled according to the customers' requirements.
The maximum difference of hardness for the full length pipe mould shall be no more than 40HBW.
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.