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.
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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
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
Alloy Steel plates and round bars hot rolled and forged cold work tool steel machined and peeled and grinded alloy steel round bar Grade: 4130 4140 4145 4150 5140 8620 4340 52100 SCM420 42CrMo4 Standard: AISI, ASTM, BS, DIN, GB, JIS Technique: Forged Process: EAF+LF+VD Delivery time: 60~70 days Packing: Standard export packing
We have a wide variety stock of rebar, available dimensions from 8 mm to 32 mm,grades 60,40 ASTM A615,and BS4449, lengths 4,5,6,9,and 12 meters,plain,and deformed bars. Material SD390/490/400,B500B/GR460B,HRB400/500,ASTM A615 GR40/60 Standard BS4449,JIS,ASTM/A615 Length 6m,12m Application Widely used in construction industry.
Round Bars Size: 8mm to 400mm Length: 3-12m Grade: ASTM A240,GB/T3280-2007,JIS4304-2005,ASTM A167 Material: SS400 S45C S20C Application: Ship building industry, Petroleum & Chemical Industries, Electricity Industry, Food Processing, Medical Industry, Boiler Heat Exchanger, Machinery and Hardware fields.
We deals in the following products of India, China, Taiwan and Korea Origin:- 1)Hot Rolled Steel (Hot Rolled Sheets, Hot Rolled Coils, Hot Rolled Plates, Hot Rolled Bars etc) 2)Galvanized Steel (Galvanized Steel Tapes, Galvanized Steel Wires, Galvanized Steel Strips, Galvanized Steel Coils, Galvanized tubes etc) 3)Cold Rolled Steel (Cold Rolled Steel Strips, Cold Rolled Steel Coils, Cold Rolled Sheets etc) 4)Stainless Steel (Stainless Steel Strips, Stainless Steel Coils, Stainless Steel Wire, Hardened and Tempered Spring Steel, Stainless Spring Steel, Spring Steel Wires etc) 5)Steel Tube and Pipes ( ERW, CRW, CRS, Black, Galvanized, Stainless ) 6)Forged Column Clamps, Girder Clamps, Pressed Clamps, Rapid Clamps, Support Clamps & Wedge Clamps. 7)Heavy Duty Props & Light Duty Props. 8)Nuts, Bolts, Nails & Fastners 9)System Scaffolding, Base Plate & Adjustable Base. 10)Steel Tie Rod, Waller Plates and Wing Nuts. 11)Drop Forged and Pressed Sheet Metal Couplers of all types. 12)Steel Billets, Steel Angle & Steel Channels.