Alloy Structure Steel 40Cr/SAE5140/1.7035/SCR440 Round Bar

• Standard: DIN, JIS, AISI, GB
• Technics: Hot Rolled
• Application: Structural Steel Bar
• Surface: Black
• Alloy: Alloy
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Free Cutting Steel, Mold Steel
• Model NO.: 40Cr/SAE5140/1.7035/SCr440
• Shapes: flat/round
• Process Tech.: hot rolled/forged
• Quality Assurance: 100% UT passed
• Delivery Time: 7days
• Condition: stock
• Payment terms: TT/LC
• Transport Package: Standard/Customized
• Specification: standard/customized
• Trademark: customized
• Origin: China
• HS Code: 7306900090
• Production Capacity: 1000t/Month

Product Description

Alloy Structure Steel 40Cr/SAE5140/1.7035/SCR440 Round Bar 
 
1,Chemical composition(%):

C	Si	Mn	S	P	Cr	Ni	Cu
0.37-0.44	0.17-0.37	0.70-0.90	<=0.040	<=0.035	0.80-1.10	<=0.30	<=0.30

 
2,Application:
 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.
  
3,Properties:

1)	5140 is medium carbon tempered steel, cold heading die steel;
2)	The steel is moderate in price and easy to process. It can obtain a certain toughness, plasticity and wear resistance after proper heat treatment;
3)	Normalizing can promote the spheroidization, improve the cutting performance of hardness less than 160HBS of blank;
4)	The steel has the best comprehensive mechanical properties at the temperature of 550~570;
5)	The steel is a high degree of quenching, suitable for high frequency quenching, flame hardening and other surface hardening treatment.

4,Heat treatment specification:
Quenching 850 degree, oil cooling;
Tempering at 520 degrees C, water cooling, oil cooling.  
 
5,Delivery condition:
 Hot rolled or forged/ peeled or black surface/annealed or Q+T.

Why choose us?

Quality Assurance from government owned steel mills
At Changfeng, we meticulously source materials only from steel manufacturers to ensure consistency in providing the finest quality steel products for our customers.
Being in the competitive market today, we clearly understand that customers are looking for products that are not only best in class but also affordably priced. We are confident that we are able to ful fil these two equally vital aspects -our customers' continuous support over the past two decades is the most heartfelt recognition to us.
Speedy and Timely Delivery
Knowing that delivering goods to customers' hands on time is as important as providing quality goods, we treat every business transaction as a priority. Be it a raw material or a finished material with machining or heat treatment, every effort will be made to get your purchase order to you in the shortest lead time.
Quality Commitment
In order to realise competitive products to fulfil our customers' demands and quality considerations, our integrated quality and work management system is continuously being improved and developed further. We document this for our customers by having our quality management system certified in accordance with ISO 9001. This measure is accompanied by audits and  recertification's on a regularly prescribed basis.
Our service
We provide quality special steel for all industries.
Orders of any size, any length, ship fast
We carry a unique inventory of specialty special steel
Provide related value-adding services :
metal cutting, sizing, machining (blanking, milling, grinding), and heat treatment.
Sawing for small or large quantities, sawing-to-size.
Excellent customer service

Workshop

Quality Inspection

Contact Us
Contact us for the latest price and more details NOW!