1.1 This specification covers requirements for low-carbon age-hardening nickel-copper-chromium-molybdenum-columbium alloy steel forgings for pressure vessel components.<\/p>\n
1.2 Forgings under this specification are available as Grades A or B. Grade A may be ordered in one or two classes as follows:<\/p>\n
1.2.1 Grade A Class 1<\/span><\/span> Normalized-and-precipitation-heat-treated, providing a minimum yield strength of 55 ksi [380 MPa] and a minimum tensile strength of 65 ksi [450 MPa].<\/p>\n 1.2.2 Grade A Class 2<\/span><\/span> Quenched-and-precipitation-heat-treated, providing a minimum yield strength of 65 ksi [450 MPa] and a minimum tensile strength of 75 ksi [MPa].<\/p>\n 1.2.3 Grade A was the original steel composition in this specification.<\/p>\n 1.3 Although the material is readily weldable, welding procedures are of fundamental importance and must be such as not to affect adversely the properties of the material, especially in the heat-affected zone. It is presupposed that welding procedures will be suitable for the material being welded.<\/p>\n 1.4 Supplementary requirements, including those applicable in Specification A 788\/A 788M , are provided for use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the order.<\/p>\n 1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 1.6 This specification is expressed in both inch-pound and 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 A859\/A859M-04(2009) Standard Specification for Age-Hardening Alloy Steel Forgings for Pressure Vessel Components<\/b><\/p>\nPDF Catalog<\/h4>\n
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\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 1<\/td>\n Scope
Referenced Documents
Ordering Information and General Requirements <\/td>\n<\/tr>\n\n 2<\/td>\n Manufacture
Chemical Composition
Mechanical Requirements
TABLE 1 <\/td>\n<\/tr>\n\n 3<\/td>\n Workmanship, Finish, and Appearance
Repair Welding
Test Reports
TABLE 2
TABLE 3 <\/td>\n<\/tr>\n\n 4<\/td>\n Keywords <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" \n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n ASTM<\/b><\/a><\/td>\n 2009<\/td>\n 5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":118182,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1114,2637],"product_tag":[],"class_list":{"0":"post-118181","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-77-140-30","7":"product_cat-astm","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/118181","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/118182"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=118181"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=118181"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=118181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}