55Cr3 1.7176 - DIN EN 10089-2003

Grade	55Cr3
Germany W-Nr.	1.7176
Corresponding Standard	DIN EN 10089-2003 Hot-Rolled Steels for Quenched and Tempered Springs Technical Delivery Conditions
Classification	Spring Steel
Properties	Strength Elasticity Fatigue Resistance Weldability

55Cr3 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	More
Minimum Value	0.52	-	0.7	-	-	0.7	Cu+10Sn ±0.60
Maximum Value	0.59	0.4	1	0.025	0.025	1	Cu+10Sn ±0.60

55Cr3 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Bar, rod	Quenching and Tempering (+QT)	1400~1700	≥1250	≥3	≥20	-	KU ≥5
Bar, rod	Cold Shearing Treatment (+S)	-	-	-	-	≤280	-
Bar, rod	Softening Annealing (+A)	-	-	-	-	≤248	-
Bar, rod	Spheroidizing Annealing (+AC)	-	-	-	-	≤230	-

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"!