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Guangzhou Changfeng Steel Co., LTD
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Forged Special Alloy Steel Round Bar With Excellent Hardenability SAE4140 1.7225 SCM440 42CrMo

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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Forged Special Alloy Steel Round Bar With Excellent Hardenability SAE4140 1.7225 SCM440 42CrMo

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Large Image :  Forged Special Alloy Steel Round Bar With Excellent Hardenability SAE4140 1.7225 SCM440 42CrMo

Product Details:
Place of Origin: China
Brand Name: CF Steel
Certification: Mill certificate, ISO
Model Number: SAE4140 1.7225 SCM440 42CrMo
Payment & Shipping Terms:
Minimum Order Quantity: 3MT
Price: $850-1084/MT
Packaging Details: Standard export packing
Delivery Time: 7-15 days
Payment Terms: L/C, T/T
Supply Ability: 1000mt/month
Detailed Product Description
Diameter: 14-450mm Length: 4000-6000mm
Sample: Free Stock: Available
Surface Treatment: Black Surface, Turned Heat Treatment: Annealing, Q+T
Hardness: 26-30HRC Shape: Round
Technique: Hot Rolled, Forged Characteristics: High Strength And Toughness
Payment: 30% Deposit, Balance By T/T Or L/C At Sight Lead Time: 7-15 Days
MOQ: 3MT Standard: AISI, ASTM, DIN, JIS, GB, BS
High Light:

carbon tool steel

,

tool steel flat bar

Forged Special Alloy Steel Round Bar with Excellent Hardenability (SAE4140 1.7225 SCM440 42CrMo)


Perform Standard: GB/T 3077-1999

C Si Mn Cr Mo P S Ni
0.38~0.45 0.17~0.37 0.60~0.90 0.90~1.20 0.15-0.25 ≤0.018 ≤0.030 ≤0.012



1, Application
It used for section large forgings, such as locomotive traction gears, with supercharger drive gear, the rear axle, the connecting rod and the spring load greatly clip,oil drill pipe joints and fishing tools,etc.

2, Feature
1) Weldability suffers with increasing chromium content;
2) High temperature strength and high pressure hydrogenation properties are promoted by chromium and molybdenum;
3) Molybdenum significantly reduces temper brittleness;
4) Chromium renders steel oil hardenable and increase hardenability;
5) Chromium molybdenum high tensile steel with yield strength of 550N/mm2;

3, Mechanical Properties:
Tensile strength:σb (MPa):≥1080(110)
Yield strength:σs (MPa):≥930(95)
Elongation:δ5 (%):≥12
Section shrinkage:ψ (%):≥45
Impact work:Akv (J):≥63
Impact toughness value:αkv (J/cm²):≥78(8).


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, 15-20 days.For customized products, 30-50 days.
We have full set of equipement (sawing machine/grinding/polishing machine) to make customer's specification.

Listed specifications are only typical grades; products of required specifications can be developed/produced per international, Chinese or industry standards, or based on agreements with customers.

 

 

7, Product Display

Forged Special Alloy Steel Round Bar With Excellent Hardenability SAE4140 1.7225 SCM440 42CrMo 0

 

Forged Special Alloy Steel Round Bar With Excellent Hardenability SAE4140 1.7225 SCM440 42CrMo 1

 

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8, Main products

 

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Forged Special Alloy Steel Round Bar With Excellent Hardenability SAE4140 1.7225 SCM440 42CrMo 5

 

Forged Special Alloy Steel Round Bar With Excellent Hardenability SAE4140 1.7225 SCM440 42CrMo 6

 

Forged Special Alloy Steel Round Bar With Excellent Hardenability SAE4140 1.7225 SCM440 42CrMo 7

 

 


9, About loading:

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Forged Special Alloy Steel Round Bar With Excellent Hardenability SAE4140 1.7225 SCM440 42CrMo 9

 

 

 

10, About Us

 

Forged Special Alloy Steel Round Bar With Excellent Hardenability SAE4140 1.7225 SCM440 42CrMo 10

 

Forged Special Alloy Steel Round Bar With Excellent Hardenability SAE4140 1.7225 SCM440 42CrMo 11

 

Forged Special Alloy Steel Round Bar With Excellent Hardenability SAE4140 1.7225 SCM440 42CrMo 12

 

Guangzhou Changfeng Steel Co., Ltd. is a professional special steel company, which specializing in this line since 2005 in China. 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.

 

Our company keeps the principle of “sincerely cooperation, endless striving for perfection”. We desire to establish the long-term mutual beneficial and win-win relationship with clients all over the world.

 

 



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: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material don't have stock, the delivery lead time is about 30-50 days after receiving your prepayment or firm order.

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.



 

Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +86 18148729336

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