ASTM A182/A182M-18 F91 Flange, F91 WN Flange, K90901 Flange, 1.4903 Flange, F91 SW Flange, F91 SO Flange, F91 Blind Flange, ASTM A182 F91 Flange Supplier
ASTM A182 F91 Flange Heat Treating Requirements
Grade
|
Heat Treat Type
|
Austenitizing/Solutioning Temperature, Minimum or Range, ℉[℃]A
|
Cooling Media
|
Quenching Cool Below ℉[℃]
|
Tempering Temperature, Minimum or Range, ℉[℃]
|
F91, Type1&2
|
Normalize and temper or quench and temper
|
1900-1975[1040-1080]
|
Air cool accelerated air cool or liquid
|
B
|
1350-1470[730-800]
|
B
|
A182 K90901 F91 Flange Chemical Composition %
Grade
|
UNS Designation
|
C
|
Mn
|
P
|
S
|
Si
|
Ni
|
Cr
|
Mo
|
Co
|
Ti
|
Other Elements
|
F91 Type1
|
K90901
|
0.08-0.12
|
0.30-0.60
|
0.020
|
0.010
|
0.20-0.50
|
0.40
|
8.0-9.5
|
0.85-1.05
|
0.06-0.10
|
...
|
N 0.03-0.07
Al 0.02(applies to both heat and product analyses
V 0.18-0.25
Ti 0.01
Zr 0.01
|
F91 Type2
Heat Product
|
K90901
|
0.08-0.12
0.07-0.13
|
0.30-0.50
|
0.020
|
0.005
|
0.20-0.40
|
0.20
|
8.0-9.5
|
0.85-1.05
0.85-1.05
|
0.06-0.10
0.05-0.11
|
0.01
|
N 0.035-0.07
Al 0.020(applies to both heat and product analyses
V Heat 0.18-0.25
V Prod 0.16-0.27
Ti 0.01
Zr 0.01
B 0.001
Cu 0.10
W 0.05
Sn 0.010
As 0.010
Sb 0.003
|
1.4309 F91 Flange Mechanical properties
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
|
F91 Type1 and 2
|
90[620]
|
60[415]
|
20
|
40
|
190-248
|
HT PIPE is supplier and manufactuter of ASTM A182 Flanges, we supply a wide range of steel flanges: wn flanges,sw flanges, so flanges, lwn flanges, threaded flanges, blind flanges, etc. If you have inquiry, pls contact us!