Gray Iron
USA Designation
USA Specification
BRINELL HARDNESS RANGE
DIN 1691 Specification
DIN EN 1561 Specification
ISO 185 Specification
CL 25
ASTM, A 48 ASTM, A 159
170-229
GG15
EN-GJL-150
-
CL 30
187-241
EN-GJL-200
200
CL 35
207-255
GG20
EN-GJL-250
250
CL 40
217-269
Other
*
See Specification
Per Requirement
*As agreed with customer, metal class will be consistent with Brinell range specified.
