Scm420 18crmo4/1.7243 4118 708m20 20crmo Forged Rolled Qt Alloy Steel
China Scm420 18crmo4/1.7243 4118 708m20 20crmo Forged Rolled Qt Alloy Steel, Find details about China Scm420, 4118 from Scm420 18crmo4/1.7243 4118 708m20 20crmo Forged Rolled Qt Alloy Steel
Basic Info.
Model NO.
Scm420 18crmo4/1.7243 4118 708M20 20CrMo steel
Heat Treatment
Annealed, Qt
Payment Term
30% Tt Deposit, Balance Against Bl Copy
Length
3000-5800mm
Ex-Stock
No
Delivery Date
30 Days
Ut Standard
Sep 1921-84 D/D
Grain Size
ASTM E112
Non-Metallic Inclusiton
ASTM E45
Form
Round Bars/ Flat Bar / Blocks/ Tube
Process
Eaf+Lf+Vd+Forged+Heat Treatment(Optional)
Technology
Hot Rolled/ Forged/ Cold Drawn
Quality Inspection
Ut, Chemical Composition, Physical Properties, Mechan
Test
Ensile Strength, Yield Strength, Elongation
Certificate
ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
Experience
15 Years Manufacturer Experience
Trademark
Qilu
Transport Package
Seaworthy Package
Specification
DIA 6-1200
Origin
China
HS Code
7228400000
Model NO.
Scm420 18crmo4/1.7243 4118 708M20 20CrMo steel
Heat Treatment
Annealed, Qt
Payment Term
30% Tt Deposit, Balance Against Bl Copy
Length
3000-5800mm
Ex-Stock
No
Delivery Date
30 Days
Ut Standard
Sep 1921-84 D/D
Grain Size
ASTM E112
Non-Metallic Inclusiton
ASTM E45
Form
Round Bars/ Flat Bar / Blocks/ Tube
Process
Eaf+Lf+Vd+Forged+Heat Treatment(Optional)
Technology
Hot Rolled/ Forged/ Cold Drawn
Quality Inspection
Ut, Chemical Composition, Physical Properties, Mechan
Test
Ensile Strength, Yield Strength, Elongation
Certificate
ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
Experience
15 Years Manufacturer Experience
Trademark
Qilu
Transport Package
Seaworthy Package
Specification
DIA 6-1200
Origin
China
HS Code
7228400000
Product Desciption
Scm420 18crmo4/1.7243 4118 708M20 20CrMo Forged Rolled QT Alloy Steel
1: 18CrMo4 steel introduction
18CrMo4 is a low carbon case hardening steel which has at least 0.9Cr%,0.15%Mo as strengthening elements as per EN10084 standard.It has good process performance ,and has high strength when temperature at 500-550 °C.The oxidation resistance is deteriorated and the creep strength is remarkably lowered when temperature exceeds 550°C.The weldability of 18CrMo4 steel is also very good, with excellent machining or cutting properties.
2: 18CrMo4 Steel equivalent
3: 18CrMo4 steel chemical composition
4: 18CrMo4 steel mechanical properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman
5: 18CrMo4 steel overviews
6: Delivery condition
For 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 surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
Hunan Qilu Industrial Co., Ltd 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 Co., Ltd 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.
Hunan Qilu Industrial CO., LTD
Web: qilusteel.en.made-in-china.com
1: 18CrMo4 steel introduction
18CrMo4 is a low carbon case hardening steel which has at least 0.9Cr%,0.15%Mo as strengthening elements as per EN10084 standard.It has good process performance ,and has high strength when temperature at 500-550 °C.The oxidation resistance is deteriorated and the creep strength is remarkably lowered when temperature exceeds 550°C.The weldability of 18CrMo4 steel is also very good, with excellent machining or cutting properties.
2: 18CrMo4 Steel equivalent
| Country | Japan | Germany | USA | British |
| Standard | JIS G4105/JIS G4103 | DIN (W-Nr.) EN 10250 | ASTM A29 | BS 970 |
| Grade | SCM420 | 18CrMo4/1.7243 | 4118 | 708M20 |
3: 18CrMo4 steel chemical composition
| Grade | C | Si | Mn | Cr | Mo | P | S |
| 18CrMo4/1.7243 | 0.15-0.21 | ≤ 0.4 | 0.6-0.9 | 0.9-1.2 | 0.15-0.25 | ≤ 0.025 | ≤ 0.035 |
| 18CrMoS4/1.7244 | 0.15-0.21 | ≤ 0.4 | 0.6-0.9 | 0.9-1.2 | 0.15-0.25 | ≤ 0.025 | 0.02-0.04 |
4: 18CrMo4 steel mechanical properties
| Diameter d mm | ≤ 16 | 16-40 | 40-100 |
| Yield Strength Mpa | ≥835 | ≥685 | ≥590 |
| Tensile Strength Mpa | 1080-1370 | 930-1300 | 800-1150 |
| Elongation, % | ≥9 | ≥9 | ≥10 |
| Reduction of area ,% | ≥35 | ≥35 | ≥40 |
| impact,J | ≥25 | ≥31 | ≥31 |
5: 18CrMo4 steel overviews
| Size | Round | Dia 6-1200mm |
| Plate/Flat/Block | Thickness 6mm-500mm | |
| Width 20mm-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 | 18CrMo4 case hardening steel is widely in gear components of all kind and cog wheels. Open die steel forgings for general engineering purposes.High and medium pressure steam pipes, headers and superheaters. | |
6: Delivery condition
For 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 surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
Hunan Qilu Industrial Co., Ltd 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 Co., Ltd 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.
Hunan Qilu Industrial CO., LTD
Web: qilusteel.en.made-in-china.com
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