1.1 This specification covers two general classes, WP and CR, of wrought ferritic, ferritic\/austenitic, and martensitic stainless steel fittings of seamless and welded construction covered by the latest revision of Specification A 960\/A 960M . Fittings differing from these standards may be furnished in accordance with Supplementary Requirement S58 of Specification A 960\/A 960M .<\/p>\n
1.1.1 Class WP fittings are subdivided into four subclasses: Classes WP-S, WP-W, WP-WX, and WP-WU. They are manufactured to the requirements of Specification A 960\/A 960M , and they shall have pressure ratings compatible with 12.2. Class WP-S fittings are those manufactured from seamless product by a seamless method of manufacture (marked with class symbol WP-S); Class WP-W fittings are those which contain welds where the fitting fabrication or construction welds have been radiographed (marked with class symbol WP-W); and Class WP-WX fittings are those which contain welds where all welds have been radiographed (marked with class symbol WP-WX); and Class WP-WU fittings are those which contain welds where all welds have been ultrasonically tested (marked with class symbol WP-WU).<\/p>\n
1.1.2 Class CR fittings are those manufactured to the requirements of MSS SP-43, and they shall have pressure ratings compatible with 12.3.<\/p>\n
1.2 This specification does not apply to cast fittings.<\/p>\n
1.3 Optional supplementary requirements are provided. When desired, one or more of these may be specified in the order.<\/p>\n
1.4 This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies the applicable M specification designation [SI units], the material shall be furnished to inch-pound units.<\/p>\n
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | Scope Referenced Documents <\/td>\n<\/tr>\n | ||||||
| 2<\/td>\n | Common Requirements and Ordering Information Materials TABLE 1 <\/td>\n<\/tr>\n | ||||||
| 3<\/td>\n | Manufacture Heat Treatment <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | Chemical Composition Tensile Requirements Hardness Requirements TABLE 2 <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Dimensions Workmanship, Finish, and Appearance Hydrostatic Tests Rejection TABLE 3 <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Rehearing Test Reports Product Marking Keywords <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" A815\/A815M-09a Standard Specification for Wrought Ferritic, Ferritic\/Austenitic, and Martensitic Stainless Steel Piping Fittings<\/b><\/p>\n |