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

Brand Name:CF STEEL
Certification:ISO, Mill Certificate
Model Number:40CrNiMoA, AISI4340,39CrNiMO,40NiCRMo22,SNCM439
Minimum Order Quantity:3MT
Delivery Time:7-15 days
Payment Terms:L/C, T/T
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Location: Guangzhou Guangdong China
Address: 广州市黄埔区大沙地东路403号B802房(仅限办公)
Supplier`s last login times: within 11 hours
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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.

Changfeng Tool & Die Steel main product:
STANDARD/GRADE of steelFlat Bar Size(mm)Round bar Size(mm)Technics
DINAISMJISGB(China)ThicknessWidthLengthDiameterLength
1.121SAE1050S50C50#10-450155-22002000-12000Forged, Hot Rolled
1.2311P20PDS-33Cr2Mo10-460155-22002000-1000020-2002000-6000
1.2738P20+Ni-3Cr2NiMnMo21-300155-22002000-800020-2002000-6000
1.2379D2SKD10SKD1010-200155-8102000-600014-803000-6000
1.2080D3SKD13Cr2Mo10-200155-8102000-600020-2003000-6000
1.2083420-4Cr1310-500155-12002000-600012-3003000-6000
1.2344H13SKD614Cr5MoSiV110-500155-16002000-600016-4003000-6000
1.2510O1SKS39CrWMn10-200155-8102000-600020-2003000-6000
1.7225SAE4140SCM44042CrMo10-280155-22002000-600016-4503000-6000


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.

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.


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

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

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