ASTM A182 F22 Spectacle blind

Grade

Heat Treat Type

Austenitizing/Solutioning Temperature, Minimum or Range, ℉［℃］^A

Cooling Media

Quenching Cool Below ℉［℃］

Tempering Temperature, Minimum or Range, ℉［℃］

F22, Class1,3

anneal

1650［900］

Furnace cool

B

1250［675］

Normalize and temper

1650［900］

Air cool

B

1250［675］

Grade

UNS Designation

C

Mn

P

S

Si

Ni

Cr

Mo

Co

Ti

Other Elements

F22 Class 1

K21590

0.05-0.15

0.30-0.60

0.045

0.040

0.50

...

2.00-2.50

0.87-1.13

...

...

...

F22 Class 3

K21590

0.05-0.15

0.30-0.60

0.040

0.040

0.50

...

2.00-2.50

0.87-1.13

...

...

...

Grade Symbol

Tensile Strength, min, ksi［Mpa］

Yield Strength, min, ksi［Mpa］

Elongation in 2 in.［50mm］or 4D, min, %

Reduction of Area, min, %

Brinell Hardness Number, HBW, unless otherwise indicated

F22 Class 1

60［415］

30［205］

20

35

170 max

F22 Class 3

75［515］

45［310］

20

30

156-207