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Material of FLANGES according to ASTM Standards

Designation

Tensile Strength

Yield Point

Analysis %

Analysis %

Designation

ASTM

lb/sq. in min

N/mm²
mind.

lb/sq. in min

N/mm²
mind.

C

Si

Mn

P
max

S
max

Cr

Ni

Mo

ASTM
 

FOR HIGH TEMPERATURE SERVICE

  
 A 105-87 a

70000

483

 36000 248 max
0.35		 max
0.35		 0.60
-1.05		 0.040 0.050 - - -  A 105-77
 A 181-87 a

FOR GENERAL SERVICE

  A 181-77
 Class 60 60000 414 30000 207 max
0.35		 max
0.35		 max
1.10		 0.050 0.050 - - -

Class 60
 Class 70 70000 483 36000 248 max
0.35		 max
0.35		 max
1.10		 0.050 0.050 - - -

Class 70
 A 182-87 a Ferritic Steels for High - Temperature Service  A 182-78
 Grade F1 70000 483 40000 276 max
0.28		 0.15
- 0.35		 0.60
- 0.90		 0.045 0.045 - - 0.44
- 0.65		  Grade F1
 Grade F2 70000 483 40000 276 max
0.21		 0.10
- 0.60		 0.30
- 0.80		 0.040 0.040 0.50
- 0.81		 - 0.44
- 0.65		  Grade F2
 Grade F5 70000 483 40000 276 max
0.15		 max
0.50		 0.30
- 0.60		 0.030 0.030 4.00
- 6.00		 max
0.50		 0.44
- 0.65		  Grade F5
 Grade F5a 90000 621 65000 448 max
0.25		 max
0.50		 max
0.60		 0.040 0.030 4.00
- 6.00		 max
0.50		 0.44
- 0.65		  Grade F5a
 Grade F9 85000 586 55000 379 max
0.15		 0.50
- 1.00		 0.30
- 0.60		 0.030 0.030 8.00
- 10.00		 - 0.90
- 1.10		  Grade F9
 Grade F11 70000 483 40000 276 0.10
- 0.20		 0.50
- 1.00		 0.30
- 0.80		 0.040 0.040 1.00
- 1.50		 - 0.44
- 0.65		  Grade F11
 Grade F12 70000 483 40000 276 0.10
- 0.20		 0.10
- 0.60		 0.30
- 0.80		 0.040 0.040 0.80
- 1.25		 - 0.44
- 0.65		  Grade F12
 Grade F22 75000 517 45000 310 max
0.15		 max
0.50		 0.30
- 0.80		 0.040 0.040 2.00
- 2.50		 - 0.87
- 1.13		  Grade F22

A 182.87 a

 Austenitic Steels for High - Temperature Service  A 182.78

Grade
F304

 75000 517 30000 207 max
0.08		 max
1.00		 max
2.00		 0.040 0.030 18.0
- 20.0		 8.0
- 11.0		 -

Grade
F304

Grade
F304H

 75000 517 30000 207 0.04
- 0.10		 max
1.00		 max
2.00		 0.040 0.030 18.0
- 20.0		 8.0
- 11.0		 -

Grade
F304H

Grade
F304 L

 70000 483 25000 172 max
0.035		 max
1.00		 max
2.00		 0.040 0.030 18.0
- 20.0		 8.0
- 13.0		 -

Grade
F304 L

Grade
F310

 75000 517 30000 207 max
0.15		 max
1.00		 max
2.00		 0.040 0.030 24.0
- 26.0		 19.0
- 22.0		 -

Grade
F310

Grade
F316

 75000 517 30000 207 max
0.08		 max
1.00		 max
2.00		 0.040 0.030 16.0
- 18.0		 10.0
- 14.0		 2.00
- 3.00

Grade
F316

Grade
F316 H

 75000 517 30000 207 0.04
- 0.10		 max
1.00		 max
2.00		 0.040 0.030 16.0
- 18.0		 10.0
- 14.0		 2.00
- 3.00

Grade
F316 H
Grade
F316 L		 70000 483 25000 172 max
0.035		 max
1.00		 max
2.00		 0.040 0.030 16.0
- 18.0		 10.0
- 15.0		 2.00
- 3.00		 Grade
F316 L
Grade
F321		 75000 517 30000 207 max
0.08		 max
1.00		 max
2.00		 0.030 0.030 min
17.0		 9.0
- 12.0		 - 1) Grade
F321
Grade
F321 H		 75000 517 30000 207 0.04
- 0.10		 max
1.00		 max
2.00		 0.030 0.030 min
17.0		 9.0
- 12.0		 - 2) Grade
F321 H
Grade
F347		 75000 517 30000 207 max
0.08		 max
1.00		 max
2.00		 0.030 0.030 17.0
- 20.0		 9.0
- 13.0		 - 3) Grade
F347
Grade
F347 H		 75000 517 30000 207 0.04
- 0.10		 max
1.00		 max
2.00		 0.030 0.030 17.0
- 20.0		 9.0
- 13.0		 - 4) Grade
F347 H

A 182.87 a

 FOR LOW TEMPERATURE SERVICE  A 182.78
Grade LF1 60000 414 30000 207 max
0.30		 0.15
- 0.30		 0.75
- 1.05		 0.035 0.040 - - - Grade LF1
Grade LF2 70000 483 36000 248 max
0.30		 0.15
- 0.30		 max
1.35		 0.035 0.040 - - - Grade LF2
Grade LF3 70000 483 37500 259 max
0.20		 0.20
- 0.35		 max
0.90		 0.035 0.040 - 3.25
- 3.75		 - Grade LF3
 

        1) 5 x C% ≤ Ti% 0.60%                                  3) 10 x C% ≤ Ta + Nb% ≤ 1.00%
        2) 4 x C% ≤ Ti% 0.60%                                  4) 8 x C% ≤ Ta + Nb% ≤ 1.00%