2500 Crane Centre Drive, Streetsboro, Ohio 44241

(330)562-9000  •  1(800) 837-3789  •  (330) 562-1100 Fax

Shafting and Bar Products - Alloy Steel and Pipe, abrasion resistant steel plates, manganese wear parts and chromium overlay plate.


Microsteel®

is a tough, shock and fatigue resisting Chrome-Nickel-Moly alloy steel turned ground and polished bar. In the delivered heat treated condition, it has the highest combination of tensile strength and ductility while maintaining comparable high machinability. Microsteel is quenched and tempered, stress relieved and machine straightened prior to grinding. This process insures proper grain structure alignment, removal of longitudinal stress factors and confines hardness range to within 2% variance in any bar or plate section. Most air-cooled alloy products, except tool steel, cannot meet these qualifications. A slight reduction in hardness from surface to core is more desirable than “air-hardened through hardness” since this provides much higher ductility and resistance to shock.
Chrome-Nickel-Moly Alloy Steel – Microsteel®
Hardness Range: 269 - 341 BHN, nominal
Forms: Turned Ground & Polished Bars, and Custom bars
Std Sizes: Diameters 7/16˝ to 6˝ in 1/16˝ increments
Lengths 20 – 24´


Flexite® is a tough, shock and fatigue resisting Chrome-Nickel-Moly alloy steel hot rolled, quenched and tempered bar. In the delivered quenched and tempered condition, it has the highest combination of tensile strength and ductility while maintaining comparably good machinability. Higher hardnesses attainable from 421-555 BHN. Flexite is quenched and tempered, stress relieved and machine straightened prior to shipment. This process insures proper grain structure alignment, removal of longitudinal stress factors and confines hardness range to within 2% variance in any bar or plate section. Most air-cooled alloy products, except tool steel, cannot meet these qualifications. As light reduction in hardness from surface to core is more desirable than “air hardened through hardness” since this provides much higher ductility and resistance to shock.
Chrome-Nickel-Moly Alloy Steel – Flexite®
Hardness Range: 269 - 341 BHN, nominal
Forms: Hot-Rolled Quenched & Tempered Round Bars, Square Bars,
Tubing, Flats, and Plates
Std Sizes: Consult your local St. Lawrence Sales Rep for standard sizes

Ultra-Met pipe is recommended for severe sliding abrasion applications.

St. Lawrence Steel Shafting and Bar Products

SLS600 WEARPIPE is achieved by a unique heating/quenching process that alters the steel’s microstructure through the pipe wall.