ASTM A182 - Forged or Rolled Alloy Steel Pipe Flanges, Forged Fittings and Va es, and Parts for High Temperature Service
|
Grade
|
Chemical Compositions (max%)
|
|
C
|
Mn
|
P
|
S
|
Si
|
Cr
|
Mo
|
Ni
|
Ti
|
|
F12 CL1
|
0.05-0.15
|
0.30-0.60
|
0.045
|
0.045
|
0.50
|
0.80-1.25
|
0.44-0.65
|
|
|
|
F12 CL2
|
0.10-0.20
|
0.30-0.80
|
0.040
|
0.040
|
0.10-0.60
|
0.80-1.25
|
0.44-0.65
|
|
|
|
F11 CL1
|
0.05-0.15
|
0.30-0.60
|
0.030
|
0.030
|
0.50-1.0
|
1.00-1.50
|
0.44-0.65
|
|
|
|
F11 CL2
|
0.10-0.20
|
0.30-0.80
|
0.040
|
0.040
|
0.50-1.0
|
1.00-1.50
|
0.44-0.65
|
|
|
|
F11 CL3
|
0.10-0.20
|
0.30-0.80
|
0.040
|
0.040
|
0.50-1.0
|
1.00-1.50
|
0.44-0.65
|
|
|
|
F22 CL1
|
0.05-0.15
|
0.30-0.60
|
0.040
|
0.040
|
0.50
|
2.00-2.50
|
0.87-1.13
|
|
|
|
F22 CL3
|
0.05-0.15
|
0.30-0.60
|
0.040
|
0.040
|
0.50
|
2.00-2.50
|
0.87-1.13
|
|
|
|
F5
|
0.15
|
0.30-0.60
|
0.030
|
0.030
|
0.50
|
4.0-6.0
|
0.44-0.65
|
0.5
|
|
|
F5a
|
0.25
|
0.6
|
0.040
|
0.030
|
0.50
|
4.0-6.0
|
0.44-0.65
|
0.5
|
|
|
F321
|
0.08
|
2.0
|
0.045
|
0.030
|
1.0
|
≥17.0
|
|
9.00-12.0
|
5C%-0.70
|
|
F304
|
0.08
|
2.0
|
0.045
|
0.030
|
1.0
|
18.0-20.0
|
|
8.00-11.0
|
|
|
F304L
|
0.035
|
2.0
|
0.045
|
0.030
|
1.0
|
18.0-20.0
|
|
8.00-13.0
|
|
|
F316
|
0.08
|
2.0
|
0.045
|
0.030
|
1.0
|
16.0-18.0
|
2.00-3.00
|
10.00-14.0
|
|
|
F316L
|
0.035
|
2.0
|
0.045
|
0.030
|
1.0
|
16.0-18.0
|
2.00-3.00
|
10.00-15.0
|
|
|
Grade
|
Mechanical Properties (min)
|
|
Tensile (MPa)
|
Yield (MPa)
|
Elongation %
|
Reduction %
|
Hardness (HB)
|
|
F12 CL1
|
415
|
205
|
20
|
45
|
121-174
|
|
F12 CL2
|
485
|
275
|
20
|
30
|
143-207
|
|
F11 CL1
|
415
|
205
|
20
|
45
|
121-174
|
|
F11 CL2
|
485
|
275
|
20
|
30
|
143-207
|
|
F11 CL3
|
515
|
310
|
20
|
30
|
156-207
|
|
F22 CL1
|
415
|
205
|
20
|
35
|
170
|
|
F22 CL3
|
515
|
310
|
20
|
30
|
156-207
|
|
F5
|
485
|
275
|
20
|
35
|
143-217
|
|
F5a
|
620
|
450
|
22
|
50
|
187-248
|
|
F321
|
515
|
205
|
30
|
50
|
|
|
F304
|
515
|
205
|
30
|
50
|
|
|
F304L
|
485
|
170
|
30
|
50
|
|
|
F316
|
515
|
205
|
30
|
50
|
|
|
F316L
|
485
|
170
|
30
|
50
|
|
|
