05Cr15Ni5Cu4Nb S51550 - GB /T 1220-2007

Grade	05Cr15Ni5Cu4Nb
China ISC	S51550
Corresponding Standard	GB /T 1220-2007 Stainless Steel Bars
Classification	Precipitation-Hardening Stainless Steel
Properties	Corrosion Resistance

05Cr15Ni5Cu4Nb Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Nb
Minimum Value	-	-	-	-	-	14	3.5	2.5	0.15
Maximum Value	0.07	1	1	0.04	0.03	15.5	5.5	4.5	0.45

05Cr15Ni5Cu4Nb Mechanical Properties

diameter d mm	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
d≤75	Solid Solution Treatment	-	-	-	-	HBW:≤363 HRC:≤38
d≤75	Precipitation hardening Aging at 480°C	≥1310	≥1180	≥10	≥35	HBW:≥375 HRC:≥40
d≤75	Precipitation hardening Aging at 550°C	≥1070	≥1000	≥12	≥45	HBW:≥331 HRC:≥35
d≤75	Precipitation hardening Aging at 580°C	≥1000	≥865	≥13	≥45	HBW:≥302 HRC:≥31
d≤75	Precipitation hardening Aging at 620°C	≥930	≥725	≥16	≥50	HBW:≥277 HRC:≥28

• This does not apply to flat bars, but if required by the buyer, it shall be determined through negotiation between the supplier and the buyer.

Approximate Comparison Table

05Cr15Ni5Cu4Nb 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"!