A 182 Gr. F44 A 182 Gr. F51 (15) A 182 Gr. F53 (15)
A 182 Gr. F347 (8) A 182 Gr. F347H (13) A 182 Gr. F348 (8) A 182 Gr. F348H (13)
2.9
A 240 Gr. 347 (8) A 240 Gr. 347H (13) A 240 Gr. 348 (8) A 240 Gr. 348H (13)
A 240 Gr. 310H A 351 Gr. CK3MCuN
A 351 Gr. CD3MWCuN (15)
A 182 Gr. F55 (15)
A 240 Gr. S32760 (15) A 240 Gr. 309S (11) (14) (16) A 240 Gr. 310S (11) (14) (16)
23Cr–12Ni
25Cr–12Ni
A 240 Gr. S31254 A 240 Gr. S31803 (15) A 240 Gr. S32750 (15)
A 351 Gr. CE8MN (15) A 351 Gr. CD4MCu (15)
25Cr–20Ni 2.10
Plates (b)
A 240 Gr. 309H
25Cr–7Ni–3.5Mo–W –Cb
5Cr–7Ni–3.5Mo–N– Cu–W
Castings
A 351 Gr. CH8 (11) A 351 Gr. CH20 (11)
2.11
18Cr–10Ni–Cb
A 351 Gr. CF8C (11)
2.12
25Cr–20Ni
A 351 Gr. CK20 (11)
NOTES: (a) ASME Boiler and Pressure Vessel Code, Section II materials may also be used provided the requirements of the ASME specification are identical to or more stringent than the corresponding ASTM specification for the Grade, Class, or Type listed.
(b) Plate materials are listed only for use as blind flanges and reducing flanges without hubs (see para. 5.1 of B16.5). Additional plate materials listed in ASME B16.34 may also be used with corresponding B16.34 Standard Class ratings. (1) Upon prolonged exposure to temperatures above 425°C, the carbide phase of steel may be converted to graphite. Permissible but not recommended for prolonged use above 425°C. (2) Not to be used over 455°C. (3) Not to be used over 370°C. (4) Not to be used over 260°C. (5) Not to be used over 340°C. (6) Upon prolonged exposure to temperatures above 465°C, the carbide phase of steel may be converted to graphite. Permissible, but not recommended for prolonged use above 465°C. (7) Use normalized and tempered material only. (8) Not to be used over 538°C. (9) Permissible, but not recommended for prolonged use above 590°C. (10) Not to be used over 590°C. (11) At temperatures over 538°C, use only when the carbon content is 0.04% or higher. (12) Not to be used over 425°C. (13) At temperatures over 538°C, use only if the material is heat treated by heating to a minimum temperature of 1095°C. (14) Service temperatures of 565°C and above should be used only when assurance is provided that grain size is not finer than ASTM 6. (15) This steel may become brittle after service at moderately elevated temperatures. Not to be used over 315°C. (16) At temperatures above 538°C, use only if the material is solution heat treated to the minimum temperature specified in the specification but not lower than 1035°C, and quenching in water or rapidly cooling by other means.
A 387 Gr. 11 Cl. 2 (9). 1.10. 2 1â4Crâ1Mo. A 182 Gr. F22 Cl. 3 (9) A 217 Gr. WC9 (7) (10) A 387 Gr. 22 Cl. 2 (9). 1.11. Câ1â2Mo. A 204 Gr. C (6). 1.13. 5Crâ1â2Mo. A 182 Gr. F5a. A 217 Gr. C5 (7). 1.14. 9Crâ1M0. A 182 Gr. F9. A 217 Gr. C
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