Carbon steel is steel in which the main interstitial alloying constituent is carbon in the range of 0.12–2.0%. The American Iron and Steel Institute (AISI) defines carbon steel as the following: "Steel is considered to be 

carbon steel when no minimum content is specified or required for chromium, cobalt, molybdenum, nickel, niobium, 

titanium, tungsten, vanadium or zirconium, or any other element to be added to obtain a desired alloying effect; 

when the specified minimum for copper does not exceed 0.40 percent; or when the maximum content 

specified for any of the following elements does not exceed the percentages noted: manganese 1.65, 

silicon 0.60, copper 0.60."

The term "carbon steel" may also be used in reference to steel which is not stainless steel; in this use 

carbon steel may include alloy steels.

As the carbon percentage content rises, steel has the ability to become harder and stronger through 

heat treating; however it becomes less ductile. Regardless of the heat treatment, a higher carbon content 

reduces weldability. In carbon steels, the higher carbon content lowers the melting point.

Cangzhou Bohai Safety & Special Tools Group co.,Ltd was founded in 1978 with the registered capital of 50 million yuan ,incorporating production , design , research & development , testing and sales . It consists of three subsidiaries , four scientific research and testing institutions .Our products cover 6 series including more than 300 varieties , which are widely used in petroleum , petrochemical , military , electric power ,electronics , railways , mining and gas extraction and other explode danger -close environments .They are also indispensable and professional tools for machinery and maintenance .

Our products are sold over 31 provinces and autonomous regions , and exported to more than 80 countries and regions such as Europe , America , Middle East , Southeastern Asia , South Africa , Eastern Europe , etc. Our company has gained good feedback and high praise both at home and abroad . 

Technology is the first productive force

We have many professional technicians who have worked in this field for a few ten

 years . They accumulated rich experience on design and technology . Our company

 pays much attention on developing new technique . In recent years , we have 

surmounted many technical difficulties and quality of our product has reached 

the advanced level in domestic . We have not only high technique and rich 

experience but first class manufacturing equipment and design system . So we

 could produce high precision and reliable products .

1 Your inquiry will be replied within 24 hours .

2 Well-trained & experienced sales can reply your inquiries in English , both written and spoken .

3 OEM& ODM projects are highly welcomed .

4 Your business relationship with us will be confidential to any third party.

5 Our business relationship is establish on basis of mutual benefit and respect.

6 Good after -sale service.