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Guangzhou Changfeng Steel Co., LTD
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Annealed Steel Square Bar 1045 8620 4340 4140 / En19 / Scm440 / 42CrMo

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China Guangzhou Changfeng Steel Co., LTD certification
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Annealed Steel Square Bar 1045 8620 4340 4140 / En19 / Scm440 / 42CrMo

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Large Image :  Annealed Steel Square Bar 1045 8620 4340 4140 / En19 / Scm440 / 42CrMo

Product Details:
Place of Origin: China
Brand Name: CF STEEL
Certification: ISO, Mill Certificate
Model Number: 40CrNiMoA, AISI4340,39CrNiMO,40NiCRMo22,SNCM439
Payment & Shipping Terms:
Minimum Order Quantity: 3MT
Price: USD800-900/MT
Packaging Details: Export Standard Packing or Customers'demand
Delivery Time: 7-15 days
Payment Terms: L/C, T/T
Supply Ability: 1000t/Month
Detailed Product Description
Standard: AISI,DIN,ASTM,GB Surface: Machined,black,Plain,mill Finish Or Peeled Finish,Grinding
Technique: Forged,Hot Rolled,Hot Work Mould Steel Test: SGS / Ut 100% / Element Testing
Delivery Condition: Hot Rolled, Forged Ut Standard: Sep 1921-84 Class 3 C/C To D/D
Sample: Free Heat Treatment: Annealing/Q+T
Hs Code: 722540 & 722830
High Light:

forging tool steel

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carbon tool steel

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
Standard AISI / SAE 4140
UNS -
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. Scm440 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. 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.

 
Annealed Steel Square Bar 1045 8620 4340 4140 / En19 / Scm440 / 42CrMo 0
 
Changfeng Tool & Die Steel main product:
STANDARD/GRADE of steel Flat Bar Size(mm) Round bar Size(mm) Technics
DIN AISM JIS GB(China) Thickness Width Length Diameter Length
1.121 SAE1050 S50C 50# 10-450 155-2200 2000-12000     Forged, Hot Rolled
1.2311 P20 PDS-3 3Cr2Mo 10-460 155-2200 2000-10000 20-200 2000-6000
1.2738 P20+Ni - 3Cr2NiMnMo 21-300 155-2200 2000-8000 20-200 2000-6000
1.2379 D2 SKD10 SKD10 10-200 155-810 2000-6000 14-80 3000-6000
1.2080 D3 SKD1 3Cr2Mo 10-200 155-810 2000-6000 20-200 3000-6000
1.2083 420 - 4Cr13 10-500 155-1200 2000-6000 12-300 3000-6000
1.2344 H13 SKD61 4Cr5MoSiV1 10-500 155-1600 2000-6000 16-400 3000-6000
1.2510 O1 SKS3 9CrWMn 10-200 155-810 2000-6000 20-200 3000-6000
1.7225 SAE4140 SCM440 42CrMo 10-280 155-2200 2000-6000 16-450 3000-6000


 

About Us
Guangzhou Changfeng Steel Co., Ltd.
is a professional special steel company, which specializing in this line in China since 2005. Our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Structural Steel, Tool Steel, Stainless Steel, Carbon Steel and Forged Block.

Annealed Steel Square Bar 1045 8620 4340 4140 / En19 / Scm440 / 42CrMo 1

To ensure provide high quality products to customers, we have close cooperation with many Chinese first class special steel enterprises, including Baosteel Group, Dongbei Special Steel, Changcheng Special Steel, Hongsheng Heavy Industry, Xingcheng Special Steel and Daye Special Steel.

 

 

Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +86 18148729336

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