55Cr 3 1.7176 - DIN 17221-1988

Grade	55Cr 3
Germany W-Nr.	1.7176
Corresponding Standard	DIN 17221-1988 Hot Rolled Steels for Springs Suitable for Quenching and Tempering Technical Deliverfy Conditions
Classification	Spring Steel
Properties	Strength Elasticity Fatigue Resistance Quench Hardness

55Cr 3 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr
Minimum Value	0.52	0.25	0.7	-	-	0.7
Maximum Value	0.59	0.5	1.1	0.03	0.03	1

55Cr 3 Mechanical Properties

condition	Hardness HBW
Cold Shearable Condition C	≤280
Softening Annealed Condition G	≤248
Spheroidizing Annealing State GKZ	≤200

Approximate Comparison Table Spring Steel

China		Taiwan, China	Japan	South Korea	United States		International Organization for Standardization	Germany		France	United Kingdom
GB	ISC	CNS	JIS	KS	AISI	UNS	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	BS EN/BS
55CrMnA	A22553	SUP9	SUP9	SPS5	5155	G51550	55Cr3	55Cr3	1.7176	55C3	≈527A60

55Cr3 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"!