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En19 Scm440 AISI 4140 Hot Rolled Qt Alloy Steel Round Bars

China En19 Scm440 AISI 4140 Hot Rolled Qt Alloy Steel Round Bars, Find details about China Steel Bar, Steel Round Bar from En19 Scm440 AISI 4140 Hot Rolled Qt Alloy Steel Round Bars

Model NO.
EN19 SCM440 AISI 4140
Length
5.8-6m or as Required
MOQ
2tons
Grade
En10 42CrMoA AISI 4140 Scm440
Products
Hot Rolled Steel Bar
Futhur Processing
Cold Drawn, Qt
Trademark
Laiwu Xincheng
Transport Package
Standard Sea Worthy
Specification
Anti-rust packing
Origin
China
HS Code
722
Model NO.
EN19 SCM440 AISI 4140
Length
5.8-6m or as Required
MOQ
2tons
Grade
En10 42CrMoA AISI 4140 Scm440
Products
Hot Rolled Steel Bar
Futhur Processing
Cold Drawn, Qt
Trademark
Laiwu Xincheng
Transport Package
Standard Sea Worthy
Specification
Anti-rust packing
Origin
China
HS Code
722
EN19 SCM440 AISI 4140 Hot Rolled QT Alloy Steel Round Bars

1) High fatigue strength and impact resistance after tempering
2) Good low-temperature impact toughness
3) No obvious temper brittleness

 
En19 Scm440 AISI 4140 Hot Rolled Qt Alloy Steel Round Bars
 AISI 4140 Chrome-Molybdenum High Tensile Steel

AISI 4140 equivalent material
♦JAPAN♦ : JIS SCM440 alloy steel 
♦GERMANY♦ : DIN WN-r 1.7255 / 42CrMo4 steel alloy
♦CHINA♦ :  GB 42CrMo steel
♦BRITISH♦ : BS 708M40

AISI 4140 alloy steel is chromium, molybdenum, manganese containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. 
 
 
Supply Size range
Hot Rolled 4140 steel bar: Ø16mm-310mm
Forging 4140 steel bar: Ø250mm-1000mm
Cold drawn 4140 steel bar:Ø12-100mm
Q&T 4140 steel bar:Ø16-310mm
Hot rolled 4140 steel plate: Thickness 10mm-200mm x width 100-2300mm
Forged 4140 material steel plate: Thickness 150-1500mm x Width 100 x 3000mm
Others 4140 material have not specified size, pls contact our experienced sales team.
En19 Scm440 AISI 4140 Hot Rolled Qt Alloy Steel Round Bars


1.Chemical composition of Alloy steel round bars
StandardGradeCSiMnPSCrMo
ASTM A2941400.38-0.430.15-0.350.75-1.00≤ 0.035≤ 0.040.8-1.10.15-0.25
 42CrMo40.38-0.45≤ 0.40.6-0.90≤ 0.025≤ 0.0350.9-1.20.15-0.30
EN100831.7225
JIS G4105SCM4400.38-0.430.15-0.350.6-0.85≤ 0.035≤ 0.040.9-1.20.15-0.30
GB 307742CrMo0.38-0.450.17-0.370.5-0.80≤ 0.035≤ 0.0350.9-1.20.15-0.25
BS 970EN190.35-0.450.15-0.350.5-0.80≤ 0.035≤ 0.0350.9-1.50.2-0.40
 

2.Properties of 4140 alloy steel bar

Tensile str. (N/mm2)Yield point (N/mm2)Elongation (%)Contraction (%)Impack work (J/cm2)
1080930124563

3.Quality conditions:
1.Processing Line:
Iron - hot metal pretreatment - Converter - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) - heat --UT Check - Processing and Distribution Center
Electric Furnace - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) - heat --UT Check - Processing and Distribution Center
2.Gas content level:O2 - <20 ppm H2 - <2 ppm N2- <100 ppm
3.Grain Sizes:5-8
4. non-metallic inclusions contorlling level
 ABCD
 MAXMAXMAXMAX
Thin2222
Thick1111

We specialsied in kinds of steel products more than 15 years,
especially in hot rolled , cold drawn steel round bars ,square bars,flat bars ,cold drawn bars and forged bars. 
Our main material are all carbon steel and alloy steel ,such as :aisi1020 1035 1045 1055 s20c s35c s45c s55c ss400 a36 c20 c35 c45 ck45 aisi4140/scm440 aisi4340/40crnimoa aisi8620H,40cr,gcr15,sae52100,20Mn,40Mn,St52,St37,S235JR,etc.
If you have need,please contact me freely.
En19 Scm440 AISI 4140 Hot Rolled Qt Alloy Steel Round BarsEn19 Scm440 AISI 4140 Hot Rolled Qt Alloy Steel Round BarsEn19 Scm440 AISI 4140 Hot Rolled Qt Alloy Steel Round Bars
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