Stressproof® Properties

ASTM A311 Class B

Tensile Strength

115,000 psi (min.)

Yield Strength

100,000 psi (min.)

Machining Characteristics

83% of 1212

Elongation

8% Min. (7% above 3 in.)

Reduction of Area

25% Min. (20% Min. above 2 in.)

Micro-Structure

Pearlite & Ferrite

Size Range

Rounds 1/4″ through 4 1/2″

Hexagons 1/4″ through 2″

Length

11′ / 13′

Any Custom Lengths

Finish

Standard “As Drawn” finish is smooth, accurate, and dark in color

Ground & Polished with special close tolerances available on order

Example of Use

Parts you are now heat treating from Rc23 to Rc30. A uniform material which provides exceptional quality for:

Production, Maintenance, Special Machine Parts

Tolerances

(Tolerances, in decimals of an inch, provide for undersize variation only)

Rounds:

1/4″ to 1-1/2″ incl.

Over 1/2″ to 2-1/2″ incl.

Over 2 1/2″ to 4″ incl.

Over 4″ to 4 1/2″ incl.

0.004″

0.005″

0.006″

0.007″

Hexagons:

1/4″ to 3/4″ incl.

Over 3/4″ to 1 1/2″ incl.

Over 1 1/2″ to 2″ incl.

0.004″

0.005″

0.006″