AISI 4140 Scm440 42CrMo4/1.7225 En19/709m40 Forging Alloy Round Steel
AISI 4140 Scm440 42CrMo4/1.7225 En19/709m40 Forging Alloy Round Steel 1: AISI 4140 steel introduction AISI 4140 is defin
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Basic Info
Model NO. | AISI 4140 |
Special Use | Wear Resistant Steel, Free Cutting Steel, Mold Steel, Engineering Steel |
Application | Structural Steel Bar |
Heat Treatment | Annealed/Normalized/Q+T |
Payment Term | 30% Tt Deposit, Balance Against Bl Copy |
Length | 3-5.8m, or as Per Request |
Ex-Stock | Yes |
Ut Standard | Sep 1921-84 D/D |
Grain Size | ASTM E112 |
Non-Metallic Inclusiton | ASTM E45 |
Delivery Condition | Forged/Hot Rolled/Cold Drawn |
Certificate | ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate |
Quality Inspection | Ut, Chemical Composition, Physical Properties/SGS |
Experience | 15years |
Other Type 1 | Engineering Steel, Cold Work Tool Steel |
Other Type 2 | Hot Work Tool Steel, Plastic Mold Steel |
Other Type 3 | Spring Steel, High Speed Steel, Stainless Steel |
Other Type 4 | Mold Steel, Free Cutting Steel, Cold Heading Steel |
Transport Package | in Loose 20′ Container or 40′ Container |
Specification | DIA 6-1200 |
Trademark | QILU |
Origin | China |
HS Code | 722840 |
Production Capacity | 50000metric Tons/Year |
Product Description
AISI 4140 Scm440 42CrMo4/1.7225 En19/709m40 Forging Alloy Round Steel1: AISI 4140 steel introduction
AISI 4140 is defined as a low alloy steel which has 1% Cr-Mo as strengthening alloy elements.Compared with AISI 4130, it has a higher carbon content with good balance of strength, toughness ,abrasion and impact resistance and heat treatment capabilities,but poor in weldability characteristics.AISI 4140 is generally supplied in quenched and tempered condition with hardness 28-32HRC 2: AISI 4140 Steel equivalent
Country | China | Japan | Germany | USA | British |
Standard | GB/T 3077 | JIS G4105 | DIN (W-Nr.)EN 10250 | AISI/ASTMASTM A29 | BS 970 |
Grade | 42CrMo | SCM440 | 42crmo4/1.7225 | 4140 | EN19/709M40 |
Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
42CrMo | 0.38-0.45 | 0.17-0.37 | 0.5-0.80 | ≤0.035 | ≤0.035 | 0.9-1.2 | 0.15-0.25 | - |
SCM440 | 0.38-0.43 | 0.15-0.35 | 0.6-0.85 | ≤0.035 | ≤0.04 | 0.9-1.2 | 0.15-0.30 | - |
42crmo4/1.7225 | 0.38-0.45 | ≤ 0.4 | 0.6-0.9 | ≤0.025 | ≤0.035 | 0.9-1.2 | 0.15-0.30 | - |
4140 | 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | ≤0.035 | ≤0.04 | 0.8-1.1 | 0.15-0.25 | - |
EN19/709M40 | 0.35-0.45 | 0.15-0.35 | 0.5-0.80 | ≤0.035 | ≤0.035 | 0.9-1.5 | 0.2-0.40 | - |
4: AISI 4140 steel mechanical properties(for guidance only)
Grade | Tensile strength σb(MPa) | Yield strength σs (MPa) | Elongation δ5 (%) | Reduction ψ (%) | Impact Value Akv (J) | Hardness |
4140 | ≥1080 | ≥930 | ≥12 | ≥45 | ≥63 | 28-32HRC |
Size | Round | Dia 6-1200mm |
Plate/Flat/Block | Thickness6mm-500mm | |
Width20mm-1000mm | ||
Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | |
Delivery condition | Forged; Hot rolled; Cold drawn | |
Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | |
Payment terms | T/T;L/C;/Money gram/ Paypal | |
Trade terms | FOB; CIF; C&F; etc.. | |
Delivery time | 30-45 days | |
Application | AISI 4140 steel finds many applications as forgings for the aerospace,oil and gas,automotive, agricultural and defense industries etc.Typical applications for 4140 steel uses include:forged gears,spindles,fixtures,jigs,collars,Axles,conveyor parts,crow bars,logging parts,shafts,sprockets,studs,pinions,pump shafts, rams, and ring gears etc |
6: Delivery conditionFor hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned.For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
Hunan Qilu Industrial has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.
Hunan Qilu Industrial were already engaged in exporting steel for 11 years, could supply a great variety of hot forged, hot rolled and cold drawn Steels, including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Qilu Industrial also has their own heating treatment shop and machining shop to provide heating and cutting service.
Since 2008 year, Hunan Qilu Industrial has the right to export all FORGED STEEL behalf of Qilu Speical Steel Co.,ltd which is specialized in smelting and forging of special steel since 1965 year, now Qilu special steel is one of the biggest manufacturer of forged product in China.The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial. We already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.
Qilu Industrial is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.
The company owns advanced special steel smelting facilities and forging processing equipments, the main steel-making equipment include 2 sets of 50t ultra-high power electric arc furnaces,2 sets of 60t LF refining furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of 1-20t electroslag re-melting furnaces.The main forging equipments mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of high-speed forging units of 800t,1600t,2000t and 4500t respectively.
Any interests in our company and products, please feel free to contact us for quotation. We warmly welcome you to our factory.
Hunan Qilu Industrial CO., LTDWeb: qilusteel.en.made-in-china.com