Cr4 Cold-Rolled Steel High-Strength Steel for Automotive Safety Parts

Cold-rolled steel is steel produced by cold rolling. Cold rolling is a steel plate obtained by further rolling the No. 1 steel plate to a target thickness at room temperature. Compared with hot-rolled steel sheets, cold-rolled steel sheets have more accurate thickness, smooth and beautiful surface, and also have various superior mechanical properties, especially in terms of processing performance. Because cold-rolled raw coils are relatively brittle and hard, they are not suitable for processing, so usually cold-rolled steel sheets are required to be annealed, pickled and surface-leveled before being delivered to customers. The maximum thickness of cold rolling is below 0.1--8.0MM. For example, the thickness of cold-rolled steel sheets in most factories is below 4.5MM; the minimum thickness and width are determined according to the equipment capacity of each factory and market demand.

Magnetic Properties
The magnetic properties of the product is featured by its low core loss, high permeability and excellent application performance.
Thickness Tolerance
The good thickness tolerance is characterized by small difference in thickness in a directionparalleto thedirection of rolling. small difference in thickness in a directionperpendicular to the direction of rolling, and high lamination factor.
Processing Properties
The product is suitable for punching and cutting with excellent dimensional tolerance.
Insulation Coating
The insulation coating has small color deviation, good adhesiveness and excellent resistance to heating and corrosion with high insulation coating resistance.There are several types of insulation coating available for production .According to the test results performed by the professional inspection organizations,the contents of hazardous substances comply with all the prevailing international and domestic environment protection laws and regulations including EU RoHS and REACH regulations.
 

The material		WSS-M1A365-A14 CR4
Chemical composition			C	Si	Mn	P	S	Al	Ti	Cu
			≤ 0,06	≤ 0,50	≤ 0,40	≤ 0,025	≤ 0,020	≥ 0,010	≤ 0,30	≤ 0,20
Mechanical properties of			YS	TS(MPa)	EL	n	r
			140-180	270-330	≥40	≥0.20	≥1.6

Amidst the vast land of China and the majestic Taihang Mountains lies Anyang, Henan Province, located on the eastern foothills of the Taihang mountain range. It is one of the eight ancient capitals of China and home to an outstanding steel supply chain enterprise – GNEE GROUP.

 

GNEE GROUP, established in 2008 with a registered capital of 5 million yuan, has grown into a comprehensive steel supply chain enterprise after more than a decade of hard work and perseverance. It has five subsidiaries located in different countries and regions, including Anyang, Tianjin, Hong Kong, Zhengzhou, and Singapore, and its influence has reached out around the world.

 

 

Q: What's your payment terms?
A: T/T, L/C or negotiation.

Q: Can I get guarantee of products?
A: Yes, every product is quality warrantee under customer correct using the products.

Q: Is OEM/ODM available?
A1: Yes, it is! Our products can be Customized. We have design and engineer teams,we can customize products according to customers' drawing or requirements.

Q: How is the delivery time?
A: It depends your order quantity

Q: How do you control the quality?
A: We have QC team comply with TQM to ensure the quality. Each step is in compliance to the standards. At the same time, we will take photos and shoot video for you if you need.Every product will be fully assembled and carefully tested before packing and shipping.