AISI 4140 Scm440 42CrMo4/1.7225 En19/709m40 Forging Alloy Round Steel

• Type: Alloy Steel Bar
• Standard: AISI
• Composition: Forge, Hot Rolled, Cold Rolled,
• Technique: Hot Rolled
• Shape: Bar
• Surface Treatment: Polished
• Model NO.: 4140/SMC440/1.7225/42CrMo
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Tool Steel Bar
• Transport Package: Nude
• HS Code: 7201500010
• Production Capacity: 50000t/Year

Product Description

Product Description

AISI 4140 Scm440 42CrMo4/1.7225 En19/709m40 Forging Alloy Round Steel



1: AISI 4140 steel introduction
AISI 4140 is defined as a low alloy steel which has 1% Cr-Mo as strengthening alloy elements.Compared with AISI 4130, it has a higher carbon content with good balance of strength, toughness ,abrasion and impact resistance and heat treatment capabilities,but poor in weldability characteristics.AISI 4140 is generally supplied in quenched and tempered condition with hardness 28-32HRC
 
2: AISI 4140 Steel equivalent

Country	China	Japan	Germany	USA	British
Standard	GB/T 3077	JIS G4105	DIN (W-Nr.) EN 10250	AISI/ASTM ASTM A29	BS 970
Grade	42CrMo	SCM440	42crmo4/1.7225	4140	EN19/709M40

 
3: AISI 4140 steel chemical composition

Grade	C	Si	Mn	P	S	Cr	Mo	Ni
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	-
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	-
42crmo4/1.7225	0.38-0.45	≤ 0.4	0.6-0.9	≤0.025	≤0.035	0.9-1.2	0.15-0.30	-
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	-
EN19/709M40	0.35-0.45	0.15-0.35	0.5-0.80	≤0.035	≤0.035	0.9-1.5	0.2-0.40	-

 
4: AISI 4140 steel mechanical properties(for guidance only)

Grade	Tensile strength σb(MPa)	Yield strength σs (MPa)	Elongation δ5 (%)	Reduction ψ (%)	Impact Value Akv (J)	Hardness
4140	≥1080	≥930	≥12	≥45	≥63	28-32HRC

  
5: AISI 4140 steel overviews

Size	Round	Dia 6-1200mm
	Plate/Flat/Block	Thickness 6mm-500mm
		Width 20mm-1000mm
Heat treatment	Normalized ; Annealed ; Quenched ; Tempered
Surface condition	Black; Peeled; Polished; Machined; Grinded; Turned; Milled
Delivery condition	Forged; Hot rolled; Cold drawn
Test	Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc.
Payment terms	T/T;L/C;/Money gram/ Paypal
Trade terms	FOB; CIF; C&F; etc..
Delivery time	30-45 days
Application	AISI 4140 steel finds many applications as forgings for the aerospace,oil and gas,automotive, agricultural and defense industries etc. Typical applications for 4140 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

 
6: Delivery condition
For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
 

Our Independent Laboratory

In order to guarantee a uniform good quality, ShengHe perform necessary testing and inspection according to international standards and specifications.

ShengHe has its own lab with full equipments and a team of professional Q&A and Q&C engineers to do all the tests and analysis of the materials: chemical analysis, mechanical test, UT test, microstructure analysis, hardness checking, etc. The lab also provide third party inspection service.

•  Ultrasonic testing

•  Spectrographical analysis

•  Hardness testing

• Microstructure analysis

• Tensile testing

•  Impact testing

We do pre-shipment inspection on all product before shipment

Our Factory


Our Product(steel round bars, flat bars, forged blocks,precision finished mold plate)

Our loading pictures for flat steel

Our loading pictures for round steel and mold accessories

Our loading pictures and packing for precision ground mold plate

FAQ:
Q1: Are you a trading company or manufacturer?
We belongs to Wuhan Zhongye Group,we also have our own factory for steel raw material sales and machining.Apart from our own mill, we can also provide material from other mills based on customer's different requirement.

Q2:What is the major steel grade your company offer?
S50C/S55C/S45C/1.2311/718/1.2738/1.2316/1.2083/1.2312/1.2714/H13/H11/D2/D3/O1/O2/4140/4340/5140/8620/52100/M2/M35/M42, etc, in round bar, flat bar and plate, and also semi-finished or precision ground flat bars.

Q3:What service does ShengHe Metal Provide?
Apart from sales of raw materail, we do machining processing like cutting, milling, grinding, turning, peeling, drilling, CNC machining. 

Q4: What do you do to control product quality?
Before loadnig into container, all product will go through pre-shipment inspection by our professional QC group. UT test shalled be applied to steel material, according to Sep 1921 C/c,D/d,or E/e level based on different type of steel.

Q5:What is your MOQ?
Our MOQ each order is around 25 Tons(one container), customer can mix different types of steel to reach this quantity.

Q6: Can we visit your company and factory? 
Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.