{"id":31923,"date":"2024-10-17T03:49:58","date_gmt":"2024-10-17T03:49:58","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-f256-2005\/"},"modified":"2024-10-24T14:27:50","modified_gmt":"2024-10-24T14:27:50","slug":"astm-f256-2005","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-f256-2005\/","title":{"rendered":"ASTM-F256 2005"},"content":{"rendered":"

ASTM F256-05e1<\/h3>\n

Historical Standard: Standard Specification for Chromium-Iron Sealing Alloys with 18 or 28 Percent Chromium<\/h4>\n
\n

ASTM F256<\/h4>\n

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

1.1 This specification covers two chromium-iron alloys, the former, (UNS K91800), nominally 18 % chromium, balance iron, the latter, (UNS K92801), nominally 28 % chromium, in strip, bar, wire, and rod forms intended primarily for sealing to glass in electronic applications.<\/p>\n

Note 1\u2014UNS K92801 should only be considered for use at service temperatures below 300\u00b0C. The alloy is prone to sigma phase formation at temperatures close to 620\u00b0C, and exhibits brittle mechanical behavior after prolonged exposures at temperatures close to 475\u00b0C.<\/p>\n

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.<\/p>\n

1.3 The following hazard caveat pertains only to the test method portion, Sections 16 and 17, of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.<\/i><\/p>\n

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

glass-to-metal sealing; iron-chromium alloys; UNS K91800; UNS K<\/p>\n

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

ICS Number Code 2801 ()<\/p>\n

DOI:<\/strong> 10.1520\/F0256-05E01<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents
Terminology <\/td>\n<\/tr>\n
2<\/td>\nClassification
Ordering Information
Process
Temper and Finish
Chemical Composition
Chemical Analysis
TABLE 1
TABLE 2 <\/td>\n<\/tr>\n
3<\/td>\nThermal Expansion Requirements
Mechanical Property Requirements
Transformation Requirements
Permissible Variations in Dimensions
Workmanship, Finish, and Appearance
Number of Tests and Retests
Specimen Heat Treatment
TABLE 3
TABLE 4
TABLE 5
TABLE 6 <\/td>\n<\/tr>\n
4<\/td>\nTest Methods
Inspection
Rejection
Rehearing
TABLE 7
TABLE 8
TABLE 9 <\/td>\n<\/tr>\n
5<\/td>\nCertification
TABLE 10
TABLE 11
TABLE 12
TABLE 13 <\/td>\n<\/tr>\n
6<\/td>\nPackaging and Package Marking
Keywords
X1. THERMAL EXPANSION
X1.1
TABLE 14
TABLE 15
TABLE X1.1 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

F256-05e1 Standard Specification for Chromium-Iron Sealing Alloys with 18 or 28 Percent Chromium<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2005<\/td>\n7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":31924,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2637],"product_tag":[],"class_list":{"0":"post-31923","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\/31923","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\/31924"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=31923"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=31923"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=31923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}