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Guangzhou Changfeng Steel Co., LTD
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EN24 SAE4340 1.6511 SNCM439 40CrNiMo Hot Rolled Engineering Steel Bar

China Guangzhou Changfeng Steel Co., LTD certification
China Guangzhou Changfeng Steel Co., LTD certification
Gold supplier! Arranged shipment very fast, quality is super good. They are one of our best suppliers, will do more business with them in the future!

—— Ms Nguyen Thi Hong

We bought 7 containers from them in 2017, no quality problems. The boss is very nice and professional, good business parner!

—— Mr. Wan Rusli

Good job! Shipment was arranged fast, giving lots of good suggestions before place order, saved me time and money.

—— Mrs. Natntia Jitaniyompanich

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EN24 SAE4340 1.6511 SNCM439 40CrNiMo Hot Rolled Engineering Steel Bar

EN24 SAE4340 1.6511 SNCM439 40CrNiMo Hot Rolled Engineering Steel Bar
EN24 SAE4340 1.6511 SNCM439 40CrNiMo Hot Rolled Engineering Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo Hot Rolled Engineering Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo Hot Rolled Engineering Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo Hot Rolled Engineering Steel Bar

Large Image :  EN24 SAE4340 1.6511 SNCM439 40CrNiMo Hot Rolled Engineering Steel Bar

Product Details:
Place of Origin: China
Brand Name: CF STEEL
Certification: ISO, Mill Certificate, SGS
Model Number: EN24 SAE4340 1.6511 SNCM439 40CrNiMo
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
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: Turned, Black
Technique: Forged,Hot Rolled Test: SGS / Ut 100% / Element Testing
Ut Standard: Sep 1921-84 Class 3 C/C To D/D Heat Treatment: Annealing/Q+T
High Light:

engineering special steels

,

h13 tool steel

Hot Rolled 1.6511 SNCM439 EN24 SAE4340 40CrNiMo Engineering Steel Round Bar

 

1. 4340 steel introduction
AISI 4340 steel is a medium carbon, low alloy steel known for its toughness and strength in relatively large sections. AISI 4340 is also one kind of nickel chromium molybdenum steels. 4340 alloy steel is generally supplied hardened and tempered in the tensile range of 930 - 1080 Mpa. Pre hardened and tempered 4340 steels can be further surface hardened by flame or induction hardening and by nitriding. The 4340 steel has good shock and impact resistance as well as wear and abrasion resistance in the hardened condition. AISI 4340 steel properties offer good ductility in the annealed condition, allowing it to be bent or formed. Fusion and resistance welding is also possible with our 4340 alloy steel. ASTM 4340 material is often utilized where other alloy steels do not have the hardenability to give the strength required. For highly stressed parts it is excellent choice. AISI 4340 alloy steel can also be machined by all customary methods.

2. 4340 Steel equivalent

Country Japan Germany Britain USA
Standard JIS G4103 EN10250 BS970 ASTM A29
Grade SNCM439 36CrNiMo4/1.6511 EN24/817M40 4340


3. 4340 steel chemical composition

Grade C Si Mn P S Cr Mo Ni
4340 0.38-0.43 0.15-0.35 0.6-0.8 0.035 0.04 0.7-09 0.2-0.3 1.65-2.0
36CrNiMo4 0.32-0.4 0.4 0.5-0.8 0.035 0.035 0.9-1.2 0.15-0.3  
EN24 0.36-0.44 0.1-0.4 0.45-0.7 0.035 0.04 1.0-1.4 0.2-0.35 1.3-1.7
SNCM439 0.36-0.43 0.15-0.35 0.6-0.9 0.03 0.03 0.6-1.0 0.15-0.3 1.6-2.0


4. 4340 steel mechanical properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.

 

5. Ready Stock:
Round Bar diameter 14-460mm.All the sizes as require can be customerized as fresh production with MOQ.

6. Delivery state:
Hot rolled, Heat Treatment,black, hardness or tempered hardness:28-34 HRC.
Annealing:HBS<=235.

7. Delivery time
For abundant stock, 7-15 days.For customized products, 30-50 days.
We have full set of equipement (sawing machine/grinding/polishing machine) to make customer's specification.

 

Product Photo

EN24 SAE4340 1.6511 SNCM439 40CrNiMo Hot Rolled Engineering Steel Bar 0

 

Strict Quality Control

EN24 SAE4340 1.6511 SNCM439 40CrNiMo Hot Rolled Engineering Steel Bar 1

 

Loading Photo

EN24 SAE4340 1.6511 SNCM439 40CrNiMo Hot Rolled Engineering Steel Bar 2

 

FAQ:

Q: Are you a manufacturer or merely a trader?
A: We are trading company act as exporting Steel Products with our own factory,
we can manufacture the products as in cutomer's requirement,wholesale and retail all kinds of domestic mould steel,the price we offered is very competitive compared with other agents.

Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as SGS, CE,ISO if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival. Third,the products we export are mainly from ShaGang group, WenFeng group, XingCheng group, DongTe group,DaYe and so on, the quality are certained.

Q: What is the payment term?
A:100% T/T or 30%T/T deposite prepaid, 70%Balance L/C.

Q: Can we visit your company and factory?
A: 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.

 

EN24 SAE4340 1.6511 SNCM439 40CrNiMo Hot Rolled Engineering Steel Bar 3

Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +8613535323261

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