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China Forged Steel 1045 8620 4340 4140/En19/Scm440/42CrMo Steel Round Bar / Square Bar

China Forged Steel 1045 8620 4340 4140/En19/Scm440/42CrMo Steel Round Bar / Square Bar, Find details about China Forged Round Bar, Forged Steel Round Bars from China Forged Steel 1045 8620 4340 4140/En19/Scm440/42CrMo Steel Round Bar / Square Bar

Model NO.
1045 8620 4340 4140/En19/Scm440/42CrMo
Delivery Condition
Forged / Forged+Rough Turned
Heat Treatment
Annealed, Normalized, Qt
MOQ
One Piece
Grades
SAE 4140 En19 42CrMo4
Common Grade
1045 4140 8620 4340 1020
Techniques
Forged / Forging
Diameter of Forged Steel
100-1000mm
Ut Test Standard
C/C or D/D
Products 1
1045 S45c C45 Ck45 Forged Steel Round Bar
Products 2
4140 Scm440 En19 42CrMo Forged Steel Bar
Products 3
AISI / SAE 4340 Forged Steel Round Bar
Products 4
SAE 8620 Forged Steel Round Bar
Products 5
1.2344 Forged Steel Round Bar
Products 6
1020 Forged Steel Round Bar
Transport Package
Standard Sea Worthy
Specification
200-1000mm
Origin
China
Model NO.
1045 8620 4340 4140/En19/Scm440/42CrMo
Delivery Condition
Forged / Forged+Rough Turned
Heat Treatment
Annealed, Normalized, Qt
MOQ
One Piece
Grades
SAE 4140 En19 42CrMo4
Common Grade
1045 4140 8620 4340 1020
Techniques
Forged / Forging
Diameter of Forged Steel
100-1000mm
Ut Test Standard
C/C or D/D
Products 1
1045 S45c C45 Ck45 Forged Steel Round Bar
Products 2
4140 Scm440 En19 42CrMo Forged Steel Bar
Products 3
AISI / SAE 4340 Forged Steel Round Bar
Products 4
SAE 8620 Forged Steel Round Bar
Products 5
1.2344 Forged Steel Round Bar
Products 6
1020 Forged Steel Round Bar
Transport Package
Standard Sea Worthy
Specification
200-1000mm
Origin
China

China Forged Steel 1045 8620 4340 4140/En19/Scm440/42CrMo Steel Round Bar / Square Bar


1. 4140 forged steel bar sizes we can offer;
Round bar: 200-1000mm
Square bar:150×150-600×600mm

2.Supply condition for  4140 Forged steel bars:Black /Rough Machined /Rough turned

3.Futhur heat treatment for  4140 forged steel :
Normalized
Annealed
Q&T(Quenched&Tempered)

4. 4140 Forged Steel round bar tolerance:
Black surface
Forged sizes up to 500mm (-0/+5mm)
Forged sizes above 500mm in diameter (-0/+8mm)
Machined surface to all sizes (-0/+3mm)

5. 4140 Steel Equivalent
StandardAISI / SAE 4140
UNS-
WERKSTOFF NR.41CrMo4, 42CrMo4, 42CrMoS4, 43CrMo4
BS 970708M40, 708A42, 709M40, En19, En19C
UNI41CrMo4, 38CrMo4 (KB), G40 CrMo4, 42CrMo4
JISSCM 440, SCM 440H, SNB 7, SCM 4M, SCM 4
EN name42CrMo4
EN #1.7223, 1.7225, 1.7227, 1.3563

6. Scm440 Forged steel chemical composition
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

7. 4140 Steel Application
4140steel finds many applications as forgings for the aerospace,oil and gas,automotive, agricultural and defense industries etc.
Typical applications for Scm440 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

8.Quality control:
1. Melting Process: EAF/BOF+LF+VD resulting in ingots
2. Both ends cut by saw
3. Ratio of forging:minimum 3:1
4. Grain size of final product: according to ASTM E112 more than 5,preferred more than 8
5. Ultrasonic test: As per SEP1921 Class C/c or D/d

9.Heat treatment of  4140 Steel 
Quenched and Tempered (+QT) of 4140 Steel
1. Heat  4140 steel slowly to 840-875°C;
2. Soak at this temperature then quench in oil;
3. Temper as soon as  4140 reach room temperature (20°C);
4. Heat uniformly to the suitable temperature of 560°C;
5. Withdraw the material from the furnace and cool in the air.                                                      
Annealing of  4140 Alloy Steel
1. Heat the  4140 slowly to 800-850°C and allow enough time.
2. Cool slowly in the furnace to 480°C followed by air cooling

10.MOQ: one piece per size/grade

11.Payment term: FOB CIF CFR EXW and so on

12.Delivery time : 7 to 30 days after deposit received.
China Forged Steel 1045 8620 4340 4140/En19/Scm440/42CrMo Steel Round Bar / Square Bar
China Forged Steel 1045 8620 4340 4140/En19/Scm440/42CrMo Steel Round Bar / Square Bar
China Forged Steel 4140/en19/scm440/42CrMo Steel Round Rod with Diameter 100mm-800mm
China Forged Steel 4140/en19/scm440/42CrMo Steel Round Rod with Diameter 100mm-800mm
China Forged Steel 4140/en19/scm440/42CrMo Steel Round Rod with Diameter 100mm-800mm

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