Steelmaking

Charter Steel's commitment to excellence begins with the quality of its billets. Our modern melt shops in Saukville, Wisconsin And Cleveland, Ohio produce high quality, clean, and chemically precise billets.

The melting process begins with a carefully controlled blend of raw materials that is continuously refined until Charter achieves the optimal chemistry and temperature. Deoxidizing and alloying elements are added to create specific carbon and alloy properties and each heat is vacuum-treated before the steel is continuously cast.

Throughout the melting process, Charter Steel utilizes state-of-the-art technologies to cast quality billets, including:

  • Eccentric bottom tapping (EBT) technology to minimize furnace slag carryover into the ladle where it could compromise the alloy content or internal cleanliness of the steel.
  • Chemical treatment to achieve precisely controlled sulfur levels for the steel's intended application.
  • 100% vacuum-arc degassing of all heats to assure extremely high levels of steel cleanliness and minimize undesirable gaseous elements.
  • Electromagnetic stirring in the mold to improve surface and internal structure, chemical uniformity and cleanliness.
  • Argon shrouding to prevent reoxidation.
Steelmaking

Grades

Products ASTM
Grade Designation
ASTM Specification
Carbon Steels 1008 through 1095 A29 / A29M
Resulfurized Carbon Steels 11XX A29 / A29M
Rephosphorized & Resulfurized Carbon Steels 12XX A29 / A29M
Carbon Steels (High Manganese) 15XX A29/ A29M
Alloy Steels 12XX, 4XXX, 5XXX, 6XXX, 8XXX A29 / A29M
H Band Available where designated by ASTM A304
Boron Steels Boron treatment of many standard ASTM grades available  

Products Table

ANSAIP
SASAIP
ANRAIP
ANSAFS
SASAFS
ANRAFS
SAIP
RAIP
DFSAR
DFAR
SAFS
RAFS
ANCC
SACC
STRESS
SPECIAL
DIRECT
DRAWN
CLEAN
& COAT
Clean / Coat Clean / Coat Clean / Coat Clean / Coat Clean / Coat Clean / Coat Clean / Coat Clean / Coat
Anneal Anneal Draw Anneal Draw Anneal Draw Ship
QC Check QC Check Anneal QC Check Anneal QC Check QC Check  
Clean / Coat Clean / Coat QC Check Clean / Coat QC Check Clean / Coat OR Reband Ship  
Draw Draw Clean/ Coat Draw Clean / Coat OR Reband Ship    
Anneal Anneal Draw QC Check Ship      
QC Check QC Check QC Check Ship        
Clean / Coat Clean / Coat OR Reband Ship          
Draw Ship            
QC Check              
Ship