420 Stainless Steel Square Bar
Grade 420 stainless steel is a higher carbon version of 410 which can be hardened by a quench-and-temper heat treatment. It contains a minimum of 12 per cent chromium, just sufficient to give corrosion resistance properties. It has good ductility in the annealed condition but is capable of being hardened up to Rockwell Hardness 50HRC, the highest hardness of the 12 per cent chromium grades. Its best corrosion resistance is achieved when the metal is hardened and surface ground or polished. This datasheet describes the standard Atlas 420. Variants with carbon content controlled within particular ranges are also available, usually designated 420A (lowest carbon) and increasing through 420B and 420C.
Martensitic stainless steels are optimised for high hardness, and other properties are to some degree compromised. Fabrication must be by methods that allow for poor weldability and usually also allow for a final harden and temper heat treatment. Corrosion resistance is lower than the common austenitic grades, and their useful operating temperature range is limited by their loss of ductility at sub-zero temperatures and loss of strength by over-tempering at elevated temperatures.
The process flow of the Stainless Steel Square Bar production line
The process flow of the Stainless Steel Square Bar production line: billet acceptance → heating → rolling → double scale cutting → cooling → cutting → inspection → packaging → measurement → warehousing.
Application fields of Stainless Steel Square Bar
Stainless Steel Square Bar are mainly used in chemical, petrochemical, marine engineering, seawater pipelines, seawater desalination and other industries, nuclear engineering, paper and pulp industry
Oil and gas
Kuaima Steel provides a complete set of equipment and installations for drilling, transportation and storage in the oil and gas industry.
Energy
Kuaima Steel serves the entire service cycle of power generation and synchronous activities in design, construction, repair and maintenance.
Construction
Kuaima Steel provides comprehensive products and services for infrastructure, bridges, pipelines, etc.
Marine
Kuaima Steel is a trusted supplier for subsea to surface operations and shipbuilding operations.
We supply and export Stainless Steel Square Bar in following countries
Malaysia, United Arab Emirates, Indonesia, Saudi Arabia, Iran, Qatar, India, China, United Kingdom, Singapore, Canada, Thailand, Korea, Turkey, Philippines, Egypt, Germany, Italy, Japan, Russia, Vietnam, Australia, South Africa , Portugal, Morocco, Costa Rica, Kazakhstan, Netherlands, Mexico, Brazil, France, Spain, Nigeria, Bangladesh, Kuwait, Iraq, Ukraine, Poland, Jordan, Romania, Oman, Hong Kong, Venezuela, Colombia, Norway, Chile, Te Trinidad and Tobago, Greece, Czech Republic, Belgium, Sri Lanka, Cyprus, Angola, Myanmar (Burma), United Kingdom, Canada, Korea, Thailand, Netherlands, Spain, Turkey, Australia, Mexico, Pakistan, Vietnam, Brazil, Philippines, France, Taiwan, Poland, South Africa, Russia, Nigeria, Kuwait, Czech Republic, Norway, Romania, Egypt, Oman, Sweden, Belgium, Hong Kong, Israel, Colombia, Switzerland, Denmark, Finland, Argentina, Venezuela, Peru, Ukraine , Chile, Bangladesh, Portugal, Ireland, Austria, Algeria, Greece, Iraq, New Zealand, Slovakia, Hungary, Kazakhstan, Slovenia, Lithuania, Serbia, Sri Lanka, Bahrain, Bulgaria, Morocco, Tunisia, Croatia, Jordan, Ecuador, Te Trinidad and Tobago, Estonia, Azerbaijan, Ghana, Lebanon, Cyprus, Dominican Republic, Latvia, Libya, Costa Rica, Cambodia, Macedonia (FYROM), Belarus, Jamaica, Palestine, Turkmenistan Belarus, Jamaica, Palestine, Turkmenistan Belarus, Jamaica, Palestine, Turkmenistan and other countries
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