Aluminum killed, wire, rod. SWRCH20K is comparable to JIS SWRCH20A, JIS S20CK, JIS S20C, UNS G10200, and AISI 1020 - the carbon and manganese limits are identical and they differ only in silicon specification and impurity limits (SWRCH20A has a low level of aluminum specified). Applications include parts in the case hardened condition where core strength is not critical, and for shafts of larger cross section that are not highly stressed. Other uses include lightly stressed gears with hard wearing surfaces and case hardened pins and chains. MatWeb has multiple entries with mechanical property data for different forms and heat treatments of AISI 1020. |
JIS G3507(91) SWRCH20A. Comparable to JIS SWRCH20K, JIS S20CK, JIS S20CK, UNS G10200, AISI 1020 |