Stressproof® Cold Roll Bars

Analysis Mechanical_Properties Applications Machineability_and_Weldability Tolerances Speedy Metals items

Stressproof® is a carbon-manganese grade which is severely cold worked to produce high tensile properties. The bars are specially treated to relieve the stresses set up by the cold drawing, thus minimizing the tendency towards warpage after machining which is common in ordinary cold drawn bars. Stressproof ® cold roll bars have a built-in high strength hardness, without the need of heat treatment. Stressproof ® has the combination of free machinability, minimum warpage, high strength, and wearability not found in ordinary metals. Stressproof ® is a registered trademark of the LaSalle Steel Co.

ANALYSIS

Stressproof® cold roll rounds conforms to ASTM A311 Class B, ASTM A108

MECHANICAL PROPERTIES

The above values are minimum requirements of ASTM A311 Class B

APPLICATIONS

Applications for Stressproof® rounds are many, including cold punched nuts, split rivets, machine and wood screws, arbors, keyed shafts, motor shafts, splined shafts, drive-shafts, armature shafts, rotary pump shafts, gusher pump shafts, oil and water pump shafts, wrist pins, pinions, piston rods, arbors, spindles, gears, sleeves, lead screws, racks, link pins, mandrels, boring bars, collets, bushings, etc

MACHINEABILITY AND WELDABILITY

Machinability is rated at 83% of B1112. Average cutting speed 140 ft/min. Because of a very high sulphur content, weldability is considered poor and not recommended.

TOLERANCES

Rounds

Up to 1-1/2" incl. -.002
Over 1-1/2 to under 2-1/2 -.003
Over 2-1/2 to 4" incl. -.004

SPEEDY METALS ITEMS

7/16" 1/4" {A} Rd Stressproof (Or Equivalent), Cold Finishe 5/16" {A} Rd Stressproof (Or Equivalent), Cold Finishe
3/8" {A} Rd Stressproof (Or Equivalent), Cold Finishe 1/2" {A} Rd Stressproof (Or Equivalent), Cold Finishe 9/16" {A} Rd Stressproof (Or Equivalent), Cold Finishe
5/8" {A} Rd Stressproof (Or Equivalent), Cold Finishe 3/4" {A} Rd Stressproof (Or Equivalent), Cold Finishe 7/8" {A} Rd Stressproof (Or Equivalent), Cold Finishe
15/16" {A} Rd Stressproof (Or Equivalent), Cold Finishe 1" {A} Rd Stressproof (Or Equivalent), Cold Finishe 1-1/16" {A} Rd Stressproof (Or Equivalent), Cold Finishe
1-1/8" {A} Rd Stressproof (Or Equivalent), Cold Finishe 1-1/4" {A} Rd Stressproof (Or Equivalent), Cold Finishe 1-3/8" {A} Rd Stressproof (Or Equivalent), Cold Finishe
1-7/16" {A} Rd Stressproof (Or Equivalent), Cold Finishe 1-1/2" {A} Rd Stressproof (Or Equivalent), Cold Finishe 1-5/8" {A} Rd Stressproof (Or Equivalent), Cold Finishe
1-3/4" {A} Rd Stressproof (Or Equivalent), Cold Finishe 1-7/8" {A} Rd Stressproof (Or Equivalent), Cold Finishe 2" {A} Rd Stressproof (Or Equivalent), Cold Finishe
2-1/4" {A} Rd Stressproof (Or Equivalent), Cold Finishe 2-3/8" {A} Rd Stressproof (Or Equivalent), Cold Finishe 2-1/2" {A} Rd Stressproof (Or Equivalent), Cold Finishe
2-3/4" {A} Rd Stressproof (Or Equivalent), Cold Finishe 3" {A} Rd Stressproof (Or Equivalent), Cold Finishe 3-1/4" {A} Rd Stressproof (Or Equivalent), Cold Finishe
3-1/2" {A} Rd Stressproof (Or Equivalent), Cold Finishe 3-5/8" {A} Rd Stressproof (Or Equivalent), Cold Finishe 3-3/4" {A} Rd Stressproof (Or Equivalent), Cold Finishe
4" {A} Rd Stressproof (Or Equivalent), Cold Finishe 4-1/2" {A} Rd Stressproof (Or Equivalent), Cold Finishe