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

MOQ： 3MT
Price： USD800-900/MT
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Payment Terms	L/C, T/T
Supply Ability	1000t/Month
Delivery Time	7-15 days
Packaging Details	Export Standard Packing or Customers'demand
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
Brand Name	CF STEEL
Model Number	40CrNiMoA, AISI4340,39CrNiMO,40NiCRMo22,SNCM439
Certification	ISO, Mill Certificate
Place of Origin	China

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Product Specification


Payment Terms	L/C, T/T	Supply Ability	1000t/Month
Delivery Time	7-15 days	Packaging Details	Export Standard Packing or Customers'demand
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	Brand Name	CF STEEL
Model Number	40CrNiMoA, AISI4340,39CrNiMO,40NiCRMo22,SNCM439	Certification	ISO, Mill Certificate
Place of Origin	China
High Light	forging tool steel ，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	0.38-0.45	≤ 0.4	0.6-0.90	≤ 0.025	≤ 0.035	0.9-1.2	0.15-0.30
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.

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	Technics
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.

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.

Company Details

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Business Type:

Distributor/Wholesaler,Exporter,Trading Company 
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Year Established:

2012 
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Total Annual:

5000000-10000000
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Employee Number:

100~120 
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Ecer Certification：

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Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China.With twenty years experience in special steel industry, our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Struct... Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China.With twenty years experience in special steel industry, our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Struct...

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Guangzhou Changfeng Steel Co., LTD
广州市黄埔区大沙地东路403号B802房(仅限办公）
https://www.hotwork-toolsteel.com/

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