SM55 T10550 - GB /T 1299-2014

SM55 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.52	0.17	0.5	-	-
Maximum Value	0.58	0.37	0.8	0.03	0.03

SM55 Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Delivery condition	Hot Rolling	170~230

New and Old Grade Replacement List

Approximate Comparison Table Plastic Mold Steel

China			Japan	United States	International Organization for Standardization	Germany		Sweden
YB	GB	ISC	JIS	ASTM/AISI	ISO	DIN EN/DIN	W-Nr.	SS
SM55	SM55	T10550	S55C	1055	C55E4	C55E	1.1203	1665

SM55 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!