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Let me first try answering the first part of your question. As far as I could find, the steel grade 40Cr corresponds to the steel grade 40X (standard GOST 8479-70, forged steel; 0.36-0.44 wt% C, 40Cr Steel CNC Machining Parts CNC Mechanical Steel 40Cr Steel Is The Standard Steel Grade Of GB In Our Country, And 40Cr Steel Is One Of The Most Widely Used Steels In Machinery Manufacturing Industry. After Quenching And Tempering, It Has Good Comprehensive Mechanical Properties, Good Low Temperature Impact Toughness And Low Notch Sensitivity. The Hardenability ( Quenching Degree ) Of Steel Is Good.
40Cr steel specification/alloy steel 41Cr4 SCr440 5140, US $ 500 - 700 / Ton, Cr40 41Cr4 SCr440 5140, AiSi, ASTM, bs, DIN, GB, JIS, Shandong, China.Source from 40Cr4 Round Bars, 40Cr4 Carbon Steel Flat Bars Buy 40Cr4 Carbon Steel Round Bar, 40Cr4 Alloy Steel Rods, Carbon Steel 40Cr4 Bright Bars Stock at factory price in Mumbai, India. 40Cr4 Steel Round Bars have 1% chromium and is heat treated for making products like Front Axle beam, front vehicle axles, crankshafts, axle
40KH ( 40 ) - Alloy structurall steel:chemical composition, mechanical and physical properties, hardness Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys 40cr steel pipe characteristics and the purpose 40cr pipe belong to the nitride steel pipe, which contains elements conducive to nitride. 40cr pipe after the nitriding treatment to obtain a higher surface hardness, the hardness of the nitriding treatment in the 40cr pipe quenched after highest attainable HRA72 ~ 78, i.e. HRC43 to 55.
4Cr13 steel (New name:40Cr13) is a martensitic type stainless steel, which has higher hardness than 3Cr13 steel after quenching. The steel has good mechanical processing performance. After heat treatment (quenching and tempering), it has good corrosion resistance, polishing performance, high strength and wear resistance. AISI 1045 Steel Bar Plate - JIS S45C - DIN C45 - Songshun AISI 1045 Steel Round Bar Sheet Plate, JIS S45C, DIN C45. AISI 1045 steel is high-quality medium-carbon steel with high strength. It also can be called JIS S45C and DIN C45 steel. It is usually used in normalized condition because of its bad hardenability. It needs to be quenching and tempering treatment to get higher mechanical performance.
Hardness (HB):217 :5.Characteristic of 40Cr Steel :Chromium molybdenum high tensile steel with yield strength of 550N/mm2. Chromium renders steel oil hardenable and increase hardenability. Weldability suffers with increasing chromium content. High temperature strength and high pressure hydrogenation properties are:promoted by chromium and molybdenum. Character comparison of steel used by HANSTOOLSCharacter comparison of steel used by HANSTOOLS HRC Torque Toughness Low Carbon Steel Midium Carbon 30-45 Steel (Highest 50) Carbon High Carbon For high hardness and great toughness. This steel is suitable for high torque tools This steel is used in mid-price products mostly, but it also was used in the DIY tools. Wrenches, etc.
5140 Alloy Steel, Gr8.8 Bolts, Round Bar manufacturer / supplier in China, offering SAE5140 SCR440 40cr B7 Alloy Steel Round Bar for High Tensile Bolts, 1215 1215ms 1045 Carbon Cold Drawn Free Cutting Hex Steel Bar, Scm440 Scm420 Scm415 Cold Drawn Alloy Steel Bars and so on. China SAE5140 SCR440 40cr B7 Alloy Steel Round Bar for 5140 Alloy Steel, Gr8.8 Bolts, Round Bar manufacturer / supplier in China, offering SAE5140 SCR440 40cr B7 Alloy Steel Round Bar for High Tensile Bolts, 1215 1215ms 1045 Carbon Cold Drawn Free Cutting Hex Steel Bar, Scm440 Scm420 Scm415 Cold Drawn Alloy Steel Bars and so on.
Tempering at a temperature of 550~570, 40cr alloy steel has excellent comprehensive mechanical properties. The hardenability of 40cr alloy steel is higher than that of 45 steel, which is suitable for surface hardening treatments such as high frequency quenching and flame quenching. What is the quenching and tempering treatment of 40Cr steelSep 26, 2020 · (1) 40Cr workpieces should be oil-cooled after quenching. 40Cr steel has better hardenability and can be hardened when cooled in oil, and the
Sep 26, 2020 · Cr steel should be used for parts with large section size or important quenched and tempered workpieces. But Cr steel has the second type of temper brittleness. For quenching and tempering of 40Cr workpiece quenching and tempering, various parameters are stipulated in the process card. Our experience in actual operation is:40Cr Alloy Structure Steel - Special steel china supplier GB 40CR alloy Steel is a high quality Quenched and Tempered Alloy Structural steel, It belong to the high quality low carbon,Low alloy chromium, molybdenum, nickel case hardening steel. Oil Quenched & Tempered Hardness is 28-34 HRc. GB 40CR steel Annealing delivery hardenss less than 250HB.40CR With a lower carbon content range, So GB 40CR alloy steel have good weldability. Related