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SAE 4140 En19 42CrMo4 Steel Round Bar

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SAE 4140 En19 42CrMo4 Steel Round Bar

SAE 4140 En19 42CrMo4 Steel Round Bar
SAE 4140 En19 42CrMo4 Steel Round Bar

Large Image :  SAE 4140 En19 42CrMo4 Steel Round Bar

Product Details:
Place of Origin: China
Brand Name: Evergrowrs
Model Number: 42CrMo4
Payment & Shipping Terms:
Minimum Order Quantity: 20ton
Delivery Time: 20-45 work days
Payment Terms: L/C, T/T, D/P, Western Union
Detailed Product Description
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42CrMo4 Steel Round Bar


En19 Steel Round Bar


SAE 4140 Forged Steel Round Bars

SAE 4140 En19 42CrMo4 Steel Round Bar 

Min. Order / Reference FOB Price
20 Tons US $700-900/ Ton
Production Capacity: 40000tons/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Type: Alloy Steel Bar
Standard: AISI, ASTM, GB, JIS, DIN, BS
Technique: Forged
Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
Alloy: Alloy
Special Use: Alloy Steel


Model NO. MOQ Grades Specification Transport Package
4140 STEEL 20 ton SAE 4140 En19 42CrMo4 200-1000mm Standard Sea Worthy


Forged Steel Round Square Bar 42crmo Forged Black Steel

1.42crmo forged steel bar sizes we can offer;

Round bar: 200-1000mm

Square bar:150×150-600×600mm

2.Supply condition for JIS G4051 S45C Forged steel bars:Black /Rough Machined /Rough turned

3.Futhur heat treatment for JIS G4051 S45C forged steel:




4.42crmo 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. 42crmo Steel Equivalent:

Standard AISI / SAE 4140
WERKSTOFF NR. 41CrMo4, 42CrMo4, 42CrMoS4, 43CrMo4
BS 970 708M40, 708A42, 709M40, En19, En19C
UNI 41CrMo4, 38CrMo4 (KB), G40 CrMo4, 42CrMo4
JIS SCM 440, SCM 440H, SNB 7, SCM 4M, SCM 4
EN name 42CrMo4
EN # 1.7223, 1.7225, 1.7227, 1.3563

6. 42crmo Forged steel chemical composition:

Standard Grade C Si Mn P S Cr Mo
ASTM A29 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
  42CrMo4 0.38-0.45 ≤ 0.4 0.6-0.90 ≤ 0.025 ≤ 0.035 0.9-1.2 0.15-0.30
EN10083 1.7225              
JIS G4105 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
GB 3077 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
BS 970 EN19 0.35-0.45 0.15-0.35 0.5-0.80 ≤ 0.035 ≤ 0.035 0.9-1.5 0.2-0.40

7. 42crmoSteel Application:

42crmo steel finds many applications as forgings for the aerospace,oil and gas,automotive, agricultural and defense industries etc.

Typical applications for 42crmo 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 42crmo Steel


Quenched and Tempered (+QT) of EN19 Steel

1. Heat 42crmo steel slowly to 840-875°C;

2. Soak at this temperature then quench in oil;

3. Temper as soon as 42crmo 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 42crmo Alloy Steel

1. Heat the 42crmoslowly to 800-850°C and allow enough time.

2. Cool slowly in the furnace to 480°C followed by air cooling


Contact Details
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Contact Person: steven shu

Tel: +8615601991332

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