Alloy Steel A182 F5/F9/F11 Flange

Grade

Heat Treat Type

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

Cooling Media

Quenching Cool Below ℉［℃］

Tempering Temperature, Minimum or Range, ℉［℃］

F5

anneal

1750［955］

Furnace cool

B

1250［675］

Normalize and temper

Air cool

B

F9

anneal

1750［955］

Furnace cool

B

1250［675］

Normalize and temper

Air cool

B

F11 Class 1,2,3

Anneal

Normalize and temper

1650［900］

Furnace cool

Air cool

B

1150［620］

Grade

UNS Designation

C

Mn

P

S

Si

Ni

Cr

Mo

Co

Ti

Other Elements

F5

K41545

0.15

0.30-0.60

0.030

0.030

0.50

0.50

4.0-6.0

0.44-0.65

...

...

...

F9

K90941

0.15

0.30-0.60

0.030

0.030

0.50-1.00

...

8.0-10.0

0.90-1.10

...

...

...

F11 Class 1

K11597

0.05-0.15

0.30-0.60

0.030

0.030

0.50-1.00

...

1.00-1.50

0.44-0.65

...

...

...

F11 Class 2

K11572

0.10-0.20

0.30-0.80

0.040

0.040

0.50-1.00

...

1.00-1.50

0.44-0.65

...

...

...

F11 Class 3

K11572

0.10-0.20

0.30-0.80

0.040

0.040

0.50-1.00

1.00-1.50

0.44-0.65

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

F5

70［485］

40［275］

20

35

143-217

F9

85［585］

55［380］

20

40

179-217

F11 Class 1

60［415］

30［205］

20

45

121-174

F11 Class 2

70［485］

40［275］

20

30

143-207

F11 Class 3

75［515］

45［310］

20

30

156-207