4340/40CrNiMoA/1.6511/En24 Forged Steel Round Bar/Hot Rolled Steel Rod/Alloy Structural Steel Round Bar/ Machined Bright Bar

• Customization: Available
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Technique: Hot Rolled/Forged
• Model NO.: 4340/40CrNiMoA/1.6511/EN24
• Application: Tool Steel Bar, Die Steel Bar, Alloy Structural Steel
• Surface Treatment: Black Surface or Machined Surface
• Alloy: Alloy
• Special Use: Alloy Structural Steel
• Transport Package: Nude Packing or as Per Customer′s Requirment
• Specification: Plate: 10~1000*200~2300mm, Round: Dia 6-1200mm
• Trademark: ShengHe
• Origin: China
• Production Capacity: 10000ton Per Month

Product Description

4340/40CrNiMoA/1.6511/EN24 Forged Steel Round Bar/Hot Rolled Steel Rod/Alloy Structural Steel Round Bar/ Machined Bright Bar

Dimensions
Hot Rolled Round: dia.16-300 mm
Forged Round: dia.150-1200 mm
Cold Drawn Round: dia.6-30 mm
Hot Rolled Plate: 10-150 x 2000-2300 mm
Forged Block: 150-1000 x 200-1900 mm


Delivery Condition

EAF+LF+VD, Hot Rolled or Forged or Cold Drawn, Annealed or Q+T, Black or Machined surface, UT SEP1921 Class3 C/c or D/d

Equivalence

AISI / SAE	DIN / W.Nr		JIS	GB
4340	34CrNiMo6 1.6582		SNCM439	40CrNiMoA

 

Chemical Composition(%)

 

Steel Grade	C	Si	Mn	P	S	Cr	Mo	Ni
34CrNiMo6	0.30-0.38	≤ 0.40	0.50-0.80	≤ 0.035	≤ 0.035	1.30-1.70	0.15-0.30	1.30-1.70
1.6582
4340	0.38-0.43	0.15-0.35	0.60-0.80	≤ 0.035	≤ 0.040	0.70-0.90	0.20-0.30	1.65-2.00
SNCM439	0.36-0.43	0.15-0.35	0.60-0.90	≤ 0.030	≤ 0.030	0.60-1.00	0.15-0.30	1.60-2.00
40CrNiMoA	0.37-0.44	0.17-0.37	0.50-0.80	≤ 0.030	≤ 0.030	0.60-0.90	0.15-0.25	1.25-1.65

Characteristics

AISI 4340 Alloy Steel is a heat treatable and low alloy steel containing chromium, nickel and molybdenum. It has high toughness and strength in the heat treated condition. It is mainly used in power transmission gears and shafts, aircraft landing gear, and other structural parts.

Applications

It is generally used for making important parts with high strength and good plasticity, and for making important parts with special performance requirements after nitrogen treatment, such as shafts, gears and fasteners

Delivery Time: 7-10 working days for steel in stock. 20-60 working days for direct production based on the quantity.

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.