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China, Chinese Alloy Steel Round Bar 21nicrmo2 Sncm220 8620 1.6523 20ncd2 Hot-Rolling1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Steel ProductsSpecial Steel21nicrmo2 Steel BarSncm220 Steel Bar
Shandong Zayi Steel Co., Ltd
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Product Description Alloy Steel Round Bar 21NiCrMo2 Sncm220 8620 1.6523 20NCD2 Hot-rolling1: AISI 4140 steel introductionAISI 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 equivalentCountryChinaJapanGermanyUSABritishStandardGB/T 3077JIS G4105DIN (W-Nr.)EN 10250AISI/ASTMASTM A29BS 970Grade42CrMoSCM44042crmo4/1.72254140EN19/709M40 3: AISI 4140 steel chemical compositionGradeCSiMnPSCrMoNi42CrMo0.38-0.450.17-0.370.5-0.80≤0.035≤0.0350.9-1.20.15-0.25- SCM4400.38-0.430.15-0.350.6-0.85≤0.035≤0.040.9-1.20.15-0.30- 42crmo4/1.72250.38-0.45≤ 0.40.6-0.9≤0.025≤0.0350.9-1.20.15-0.30- 41400.38-0.430.15-0.350.75-1.00≤0.035≤0.040.8-1.10.15-0.25- EN19/709M400.35-0.450.15-0.350.5-0.80≤0.035≤0.0350.9-1.50.2-0.40- 4: AISI 4140 steel mechanical properties(for guidance only)GradeTensile strengthσb(MPa)Yield strengthσs (MPa)Elongationδ5 (%)Reductionψ (%)Impact ValueAkv (J)Hardness4140≥1080≥930≥12≥45≥63 28-32HRC 5: steel overviewsSizeRoundDia 6-1200mmPlate/Flat/BlockThickness6mm-500mmWidth20mm-1000mmHeat treatmentNormalized ; Annealed ; Quenched ; TemperedSurface conditionBlack; Peeled; Polished; Machined; Grinded; Turned; MilledDelivery conditionForged; Hot rolled; Cold drawnTestTensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. Payment termsT/T;L/C;/Money gram/ PaypalTrade termsFOB; CIF; CNFDelivery time20-25 daysApplicationD2 used for Blanking Dies, Forming Dies, Coining Dies, Slitting Cutters, Heading Tools, Long Punches, Forming Rolls, Edging Rolls, Master Tools, Beading Rolls, Intricate Punches, Extrusion Dies, Drawing Dies, Lamination Dies, Thread Rolling Dies, Shear Blades, Burnishing Tools, Gauges, Knurls, Wear Parts. 6: Delivery conditionFor hot forged bar, usually the delivery condition is hot forged, annealed rough turned/Black surface.For hot rolled bar, usually the delivery condition is hot rolled, annealed, Black surface.For hot forged plate, usually the delivery condition is hot forged, annealed, milled surfaceFor hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.Shandong Zayi 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.We 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 Shandong Zayi also has their own heating treatment shop and machining shop to provide heating and cutting service.Since 2008 year, Shandong Zayi has the right to export all FORGED STEEL .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.Shandong Zayi 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.
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