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China Supplier Round Ss Pipe - Low Temperature Pipe (A333 A334 Gr.6 Gr.3) – Sinoworld

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We can always satisfy our respected customers with our good quality, good price and good service due to we are more professional and more hard-working and do it in cost-effective way for Stainless Steel 304 Pipe Fittings, Stainless Tubes And Pipes, Polished Stainless Steel Pipe, Our company is working by the operation principle of "integrity-based, cooperation created, people oriented, win-win cooperation". We hope we can have a friendly relationship with businessman from all over the world.
China Supplier Round Ss Pipe - Low Temperature Pipe (A333 A334 Gr.6 Gr.3) – Sinoworld Detail:

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Low temperature carbon steel pipe quenching temperature in A3 + (30 ~ 50) ℃, in practice, is usually set to the upper limit. High quenching temperature heat pipe can make low speed, surface oxidation reduction, and can improve work efficiency. The workpiece is uniform austenite, will require sufficient holding time. If the actual installed furnace capacity, would need to be appropriate to extend the holding time. Otherwise, there may be insufficient hardness due to uneven heating caused by the phenomenon. However, the holding time is too long, will also appear coarse grains, oxidation and decarbonization serious ills affecting quenching quality. We believe that if installed furnace is greater than the process documents, heating holding time to be extended 1/5.

Low temperature carbon steel pipe because of low hardenability, it should adopt a large cooling rate of 10% salt solution. Workpiece into the water, should hardenability, but not chilled, if 45 # precision steel chilled in brine, it is possible cracking of the workpiece, this is because when the workpiece is cooled to about 180 ℃, the austenite rapidly converted to horse s body tissue caused by excessive stress due. Therefore, when the quenching and tempering steel quickly cooled to this temperature range, the approach should be taken to slow cooling.

As the water temperature is difficult to grasp, accountable experience in operation, when the water stops dithering artifacts, you can water cooled (eg oil cooler can be better). In addition, the workpiece into the water, appropriate action should still be in accordance with the geometry of the workpiece, as regular exercise. Stationary cooling medium plus stationary workpiece, resulting in uneven hardness, stress uneven leaving large deformation of the workpiece, and even cracking.


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Assume full obligation to meet all demands of our customers; accomplish ongoing advancements by promoting the advancement of our customers; become the final permanent cooperative partner of clientele and maximize the interests of shoppers for China Supplier Round Ss Pipe - Low Temperature Pipe (A333 A334 Gr.6 Gr.3) – Sinoworld , The product will supply to all over the world, such as: Casablanca, Grenada, Jamaica, Ensuring high product quality by choosing the best suppliers, now we have also implemented complete quality control processes throughout our sourcing procedures. Meanwhile, our access to a large range of factories, coupled with our excellent management, also ensures that we can quickly fill your requirements at the best prices, regardless the order size.
  • The sales manager has a good English level and skilled professional knowledge, we have a good communication. He is a warm and cheerful man, we have a pleasant cooperation and we became very good friends in private.
    5 Stars By Freda from Liverpool - 2018.12.05 13:53
    The company can keep up with the changes in this industry market, product updates fast and the price is cheap, this is our second cooperation, it's good.
    5 Stars By Kim from Nicaragua - 2018.06.09 12:42
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