{"id":205108,"date":"2024-10-19T13:09:50","date_gmt":"2024-10-19T13:09:50","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-a21\/"},"modified":"2024-10-25T05:49:44","modified_gmt":"2024-10-25T05:49:44","slug":"astm-a21","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-a21\/","title":{"rendered":"ASTM-A21"},"content":{"rendered":"

ASTM A21-94-Reapproved1999<\/h3>\n

Withdrawn Standard: Standard Specification for Carbon Steel Axles, Non-Heat-Treated and Heat-Treated, for Railway Use (Withdrawn 2003)<\/h4>\n
\n

ASTM A21<\/h4>\n

Scope<\/strong><\/p>\n

1.1 This specification covers nonheat-treated axles up to and including those 6 1\/2 in. (165.1 mm) nominal diameter at the center and heat-treated axles of all sizes for freight cars, passenger cars, and locomotives.<\/p>\n

1.2 This specification is for axles with machined bodies. For axles with as-forged bodies, see Specification A383.<\/p>\n

1.3 The grades of carbon steel axles are as follows:<\/p>\n

1.3.1 Grade U -Nonheat-treated.<\/p>\n

1.3.2 Grade F -Double normalized and tempered. (All freight axles over 6 1\/2 in. (165.1 mm) nominal diameter at the center shall be Grade F.)<\/p>\n

1.3.3 Grade G -Quenched and tempered.<\/p>\n

1.3.4 Grade H -Normalized, quenched, and tempered.<\/p>\n

1.3.5 Grades F, G, and H axles are used in heavy-duty service on locomotives, cars, and other equipment.<\/p>\n

1.4 Typical designs for plain and roller bearing axles are shown in the Manual of Standards and Recommended Practice of the Association of American Railroads.<\/p>\n

1.5 Supplementary requirements 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

1.6 The values stated in inch-pound units are to be regarded as the standard.<\/p>\n

Keywords<\/strong><\/p>\n

Axles; Carbon steel railroad materials; Drop tests; Railroad steel materials-axles; Steel-axles; Tension (tensile) properties\/tests-steel; Ultrasonic testing; axles-carbon steel, non-heat-\/heat-treated for railway use<\/p>\n

ICS Code<\/strong><\/p>\n

ICS Number Code 45.040 (Materials and components for railway engineering)<\/p>\n

DOI:<\/strong> 10.1520\/A0021-94R99<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

A21-94(1999) Standard Specification for Carbon Steel Axles, Non-Heat-Treated and Heat-Treated, for Railway Use (Withdrawn 2003)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n1999<\/td>\n10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":205114,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2637],"product_tag":[],"class_list":{"0":"post-205108","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-astm","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/205108","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\/205114"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=205108"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=205108"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=205108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}