TEMPERED SPRINGSTEEL STRIP

TEMERIG

Arrangement of rolling mills, in direct line, allowing the metal to pass from one set of rolls into the next.

Transferring molten metal from melting furnace to ladle.

Surface discoloration on a metal, usually from a thin film of oxide or sulfide.

Pouring metal into ingot molds.

Transverse slipping of successive layers of a coil so that the edge of the coil is conical rather than flat.

The state of or condition of a metal as to its hardness or toughness produced by either thermal treatment or heat treatment and quench or cold working or a combination of same in order to bring the metal to its specified consistency. Each branch of the metal producing industry has developed its own system of temper designates. In flat rolled products including sheet and strip steel, tin mill products, stainless strip, aluminum sheet and copper base alloy strip; they are shown as follows:

ALUMINUM SHEET - (See Aluminum)

COPPER BASE ALLOYS (Cold Rolled) - B S Gage Numbers.

NOTE - Hardness is indicated condition while hardness varies with alloy changes.

Temper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hardness

Annealed ......................................................................Commercially Soft

Quarter Hard ................................................................One Number Hard

Half Hard .....................................................................Two Numbers Hard

Hard Temper ................................................................Four Numbers Hard

Extra Hard ....................................................................Six Numbers Hard

Spring Temper ..............................................................Eight Numbers Hard

Extra Spring Temper .....................................................Ten Numbers Hard

SHEET STEEL (Low Carbon Cold Rolled) - Temper Classifications.

Temper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Rockwell

Full Hard . .................................................................... .069 and thinner B 90 min.

..................................................................................... .070 and thinner B 84 min.

Half Hard ..................................................................... Approx. R/B 70/85

Quarter Hard ............................................................... Approx. R/B 60/75