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Guangzhou Changfeng Steel Co., LTD
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Durable Alloy Steel Bar SAE5140/1.7035/SCR440/40Cr Diameter 16-450mm

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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Durable Alloy Steel Bar SAE5140/1.7035/SCR440/40Cr Diameter 16-450mm

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Large Image :  Durable Alloy Steel Bar SAE5140/1.7035/SCR440/40Cr Diameter 16-450mm

Product Details:
Place of Origin: China
Brand Name: CF Steel
Certification: ISO/TUV/SGS
Model Number: SAE5140 /40Cr /1.7035 /SCR440
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: standard/customized
Delivery Time: 7-15days
Payment Terms: L/C, T/T
Supply Ability: 1000tons/month
Detailed Product Description
Application: Mechanical Shape: Round Bar
Process Tech.: Hot Rolled/forged Test: SGS/Ut100%/Elements Testing
Heat Treatment: Annealing/Q+T Diameter: 16-450mm
High Light:

alloy tool steel


carbon tool steel

Alloy Steel Bar For Special Tool Steel SAE5140/1.7035/SCR440/40Cr


Chemical composition(%):

Si Mn S P Cr Ni Cu
0.17-0.37 0.70-0.90 <=0.040 <=0.035 0.70-0.90 <=0.30 <=0.30

ASTM5140 is the most commonly used alloy structural steel, tensile strength, yield strength and hardenability are higher than the 40 steel, but the weldability is limited, there is a tendency to crack.
ASTM5140 is used for more important quenching and tempering parts, such as parts under variable load, medium speed and medium load.

5140 is medium carbon tempered steel, cold heading die steel.
The steel is moderate in price and easy to process. It can obtain a certain toughness, plasticity and wear resistance after proper heat treatment.
Normalizing can promote the spheroidization, improve the cutting performance of hardness less than 160HBS of blank.
The steel has the best comprehensive mechanical properties at the temperature of 550~570.
The steel is a high degree of quenching, suitable for high frequency quenching, flame hardening and other surface hardening treatment.

Heat treatment specification:
quenching 850 degree, oil cooling; tempering at 520 degrees C, water cooling, oil cooling.

Delivery condition:
Hot rolled or forged/ peeled or black surface/annealed or Q+T.

Delivery time:
For abundant stock, 15-20 days.For customized products, 30-50 days.

All the sizes as require can be customerized as fresh production with MOQ,products of required specifications can be developed/produced per international, chinese or industry standards,
or based on agreements with customers.



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Durable Alloy Steel Bar SAE5140/1.7035/SCR440/40Cr Diameter 16-450mm 0


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Our Service For You

Pre-sale Service

1. Sample can be offered with sample charge and courier fee by buyer's side.
2. We have full stock,and can deliver within short time.Many styles for your choices.
3. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you
4. All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.

After you choose

1. We will count cheapest shipping cost and make invoice to you at once.
2. Check quality again, then send out to you at 1-2 working day after your payment,
3. Email you the tracking no, and help to chase the parcels until it arrive you.

After-sale choose

1. We are very glad that customer give us some suggestion for price and products.
2. If any question, please contact with us freely by e-mail or telephone.


Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +8613535323261

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