Tianjin Shengshi Qianyuan International Trade Co., Ltd.

1.6511 Steel Characteristics 1.It has great atmospheric corrosion resistance, fatigue resistance and strength. 2.Stay excellent toughness, wear resistance and fatigue strength after heat treated. 3.It is alloy steel with low carbon and high nickel. About the coating and softening for leather knife sheath, it is a great choice. 4.4340 alloy steel bar is used widely in the aerospace industry because of great strength. 4340 alloy steel is used to manufacture large and medium-sized plastic molds that require high strength and toughness. And it is used for making important quality controlling parts with good toughness, high strength, and large size, such as heavy machinery and high load shafts, dia of turbine shafts is larger than 250mm, helicopter rotor shafts, turbojet turbine shafts, blades, high-load transmission parts, crankshaft fasteners, gears and etc. After nitriding, it also can be used to make important parts for special performance requirements. And it will be a great material for high strength and good plasticity parts after low-temperature tempering or isothermal quenching. Forging of 4340 alloy steel: 4340 steel is first preheated up to 1150C 120C for forging until uniform temperature throughout the section Do not forge below 850 C, 4340 has good forging characteristics, but care must be taken when cooling as the steel can easily crack. After the forging operation, the workpiece should be cooled as slowly as possible. It is recommended to cool in sand or dry lime etc. Feel free to contact us

Standard and grade: P20 /sis 618/ jis pds3/ din 1.2311 1. Size: Thick: 20-400mm Width: 1600~2200mm Length: 3000~5800mm Materials can be cut as your request. 2. Delivery condition: Pre-hardened: 28-36hrc 3. Applications: Especially suitable for making of plastics mold focused on superior anticorrosion and polishing property, widely used to high-grade transparent cosmetics and package containers and food containers. 4. Characteristics: By modifying the chemical compositions of the steel, the anti-acid effect become more excellent and the mirror polishing property become more superior; Smelted in application of esr process, the steel becomes more purified; the steel is 100% subject to ultrasonic defect detection and free of air bubbles and sir porosity; The steel is supplied in pre-hardened state (30-36hrc) and suitable for direct molding. Softened steel and special hardening heat treatment services may be provided according to the clients' need. Packing:raw, 20" container within 27tons

M42 Steel Grade Equivalent Chart Standard ASTM A600-92a EN ISO 4957-1999 JIS G4403: 2006 ISO 4957-1999 Grades M42(t11342) HS 2-9-1-8 SKH59 HS 2-9-1-8 Delivery condition:In annealing (269HB), or after heat treatment (65.5-68.5HRC). Quality control 100% UT (Ultrasonic Testing), UT Standard is SEP 1921-84 C/c. M42 Steel Chemical Composition Stand C (%) Mn(%) P(%) S (%) Si (%) Cr (%) V(%) W(%) Mo(%) Co(%) ASTM A600-92a 1.05-1.15 0.15-0.40 0.03 0.03 0.15-0.65 3.50-4.25 0.95-1.35 1.15-1.85 9.00-10.00 7.75-8.75 EN ISO 4957-1999 1.05-1.15 0.40 0.030 0.030 0.70 3.50-4.50 0.90-1.30 1.20-1.90 9.00-10.00 7.50-8.50 JIS G4403: 2006 1.05-1.15 0.40 0.030 0.030 0.70 3.50-4.50 0.90-1.30 1.20-1.90 9.00-10.00 7.50-8.50 ISO 4957-1999 1.05-1.15 0.40 0.030 0.030 0.70 3.50-4.50 0.90-1.30 1.20-1.90 9.00-10.00 7.50-8.50 M42 Steel Physical Properties Physical properties Metric Imperial Density 7.81 g/cm 1.3247 Steel Mechanical Properties Mechanical properties Metric Imperial Hardness, Rockwell C(oil quenched from 1204 C, 5 minutes) 64.3 64.3 Hardness, Rockwell C(oil quenched from 1177 C, 5 minutes) 65.5 65.5

What is AISI 4140 Steel AISI 4140 alloy steel round bar sheet plate belongs to medium hardenability steel.AISI 4140 steel has high fatigue strength and low notch sensitivity. Low-temperature impact toughness is also very high, no obvious temper brittleness. AISI 4140 steel round bar is mainly used after quenching and tempering state. it is used to manufacture high-strength parts under impact loads and the fittings with large cross-sections and other stressed members. Such as the horizontal eccentric shaft of the horizontal forging machine, the crankshaft of the forging press, and etc. Its equivalent grade is JIS SCM440 and DIN 1.7225. The properties and composition of 4140 steel round bar sheet plate as below. We have been specializing in the production of 4140 alloy steel for decades, providing 4140/1.7225/SCM440 alloy round bar, square and flat steel, etc. We have our own cutting and processing facilities, rich production experience, and the specifications can be customized according to your needs Requires tailoring and customization. Over the years, we have been focusing on special steel dealers and suppliers with high-quality booths. As a professional AISI 4140 steel supplier, you are welcome to inquire at any time. specialized in Special Steel for almost 20 years. We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc