Statements (33)
Predicate | Object |
---|---|
gptkbp:instanceOf |
steel classification system
|
gptkbp:class |
chemical composition
alloying elements carbon content |
gptkbp:developedBy |
gptkb:American_Iron_and_Steel_Institute
|
gptkbp:hasLetter |
three-digit code
|
https://www.w3.org/2000/01/rdf-schema#label |
AISI steel grades
|
gptkbp:includes |
gptkb:AISI_1018
gptkb:AISI_1045 gptkb:AISI_304 gptkb:AISI_316 gptkb:AISI_4140 gptkb:AISI_420 gptkb:AISI_430 gptkb:AISI_4340 gptkb:AISI_52100 stainless steels tool steels alloy steels carbon steels |
gptkbp:relatedTo |
SAE steel grades
|
gptkbp:standardizedBy |
gptkb:SAE_International
gptkb:AISI |
gptkbp:status |
partially replaced by SAE system
|
gptkbp:usedBy |
gptkb:engineer
manufacturers metallurgists |
gptkbp:usedFor |
identifying steel alloys
standardization of steel types |
gptkbp:usedIn |
gptkb:North_America
|
gptkbp:usedUntil |
early 20th century
|
gptkbp:bfsParent |
gptkb:American_Iron_and_Steel_Institute
|
gptkbp:bfsLayer |
6
|