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Guangzhou Changfeng Steel Co., LTD
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Precision Alloy Tool Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo

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.

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Precision Alloy Tool Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo

Precision Alloy Tool Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo
Precision Alloy Tool Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo Precision Alloy Tool Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo Precision Alloy Tool Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo Precision Alloy Tool Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo

Large Image :  Precision Alloy Tool Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo

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 Test: SGS / Ut 100% / Element Testing
Ut Standard: Sep 1921-84 Class 3 C/C To D/D Surface: Turned, Black
Heat Treatment: Annealing/Q+T Technique: Forged,Hot Rolled
High Light:

carbon tool steel

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tool steel flat bar

Hot Rolled and Forged Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo

 

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.
Precision Alloy Tool Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo 0

 

1. 4340 Steel equivalent

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


2. 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


3. 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.

 

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

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

6. 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.

 

Strict Quality Control

Precision Alloy Tool Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo 1

 

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Precision Alloy Tool Steel Bar EN24 SAE4340 1.6511 SNCM439 40CrNiMo 2

 

About us:
Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China. With more than 20 years experience in special steel industry, 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, Daye Special Steel.
We have thousand tons of stock materials in our own factory and also can provide processing services to customers. We are full of export experience for many years, the product covers America, Germany, France, Italy, Turkey, Singapore, Thailand, Malaysia, Vietnam, Taiwan, and Middle-East.


After years of development, the company has established a complete quality management and export service system. We have a group of experienced and competent elites and is capable of offering the best service to clients.
Our company equips with large-sized Vertical saw machines, Horizontal saw machines, Milling machines, Grinding machines and other advanced equipments to provide customers with cutting and other processing services.
All the products should be inspected the metallographic analysis, hardness, ultrasonic flaw detection and other strict inspection processes, which meet the standards of DIN, AISI, JIS and GB to ensure their function and quality.

Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Ms. Echo

Tel: +86 18148729336

Fax: +86-020-8251-5866

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