Shenzhen 42crmo, Katherine source of steel (certified), 42crmo provided by source Pipe Co., Ltd. Liaocheng trillion. Liaocheng Katherine source Pipe Co., Ltd. (www.lczygg.com) is specialized in "Q345b seamless steel pipe, 35crmo seamless steel pipe, 42crmo seamless" enterprise, the company of "honesty, hard service" concept, for you provide the highest quality products and services. Welcome to inquire! Contact: Manager Wu. 42CrMo4 (1.7225) [1] Implementation of the standards: EN 10083 / 3-2006 characteristics: 42CrMo4 strength, hardenability, good toughness, quenching small deformation, high strength and creep rupture strength at high temperatures. Standard 42CrMo4 steel AISI 4140 steel in the United States improved varieties. The steel good workability, easy polishing, easy to bite flowers, can be electroplated. [Two-digit number beginning with steel carbon content of steel, with the average carbon content of the few that 42crmo, such as 40Cr, 42CrMo alloy steel pipe ② The main alloying elements in Laiwu 42crmo, in addition to individual micro-alloying elements, generally a few percent. When the average alloy content of <1.5% 42crmo pipes, steel elements generally marked only symbols, not marked content, but prone to cause confusion in exceptional circumstances, after the element symbol can also be marked with the number "1", for example, steel "12CrMoV" and "12Cr1MoV", the former chromium content of 0.4-0.6%, which is 0.9-1.2%, and the remaining ingredients are all the same. When the average content of alloying elements ≥1.5%, ≥2.5%, while ≥3.5% ......, in the back of the element symbols should be marked content, can be expressed as the corresponding 2,3,4 ...... etc. For example 18Cr2Ni4WA. ③ vanadium steel V, Ti Ti, Al AL, boron B, rare earth RE alloying elements are micro-alloying elements, although the content is very low Shenzhen 42crmo, should still be bid out in steel. For example 20MnVB steel. Vanadium 0.07 to 0.12%, boron of 0.001 to 0.005%. ④ High quality steel should finally add "A" in the steel, as distinct from the general high quality steel. ⑤ special purpose alloy structural steel, and steel dubbed (or suffix) represents the symbol of the steel use. Heading dedicated 30CrMnSi example steel, steel, expressed as ML30CrMnSi.