X3CrNiCu18-9-4 - Nr.1.4567


Copper-Enhanced Austenitic Stainless Steel for Cold Forming

The addition of copper to the base characteristics of  AISI 304 significantly increases cold deformability. It is therefore used for fasteners and in general for cold moulded parts when they are complex and have extreme deformations.


 

References and Comparable Standards

Standard Reference: EN 10088-3: 2014 (Hot-rolled and bright products) | EN 10263-5: 2017 (Wire rods, bars and wire for cold heading products)

EUROPE ITALY GERMANY FRANCE UK USA
EN 10088-3: 2005
EN 10263-5: 2001

(UNI 6900:71)

(DIN 1654-5: 89)

(NF A 35-574-90)

(BS 3111 pt.2 -79) AISI
Grade   Werkstoff      
X3CrNiCu18-9-4 1.4567 - X3CrNiCu18-9 1.4567 Z3CNU18-10 394S17 302HQ
 

 

Chemical Composition (Cast Analysis) (%)

C / max Si / max Mn / max P / max S / max N/ max Cr Cu Ni
0,04 1,00 2,00 0,045 0,030 0,10 17,0÷19,0 3,0÷4,0 8,5÷10,5
 

 

Mechanical Properties - Cold Drawn Wire And Coils (2H)

Tensile strength levels Rm (MPa)
+C 600 600÷800
+C 700 700÷900
+C 800 800÷1000
+C 900 900÷1100
+C 1000 1000÷1250
+C 1100 1100÷1350
Note: the desired tensile strength level
shall be evaluated depending on diameter required.
 

 

Mechanical Properties - Cold Drawn Wire And Coils In The Solution Annealed Condition (2D)

Size A (%) max Rm (MPa) max
0,10≤d≤0,20 20 1050
0,20≤d≤0,50 30 1000
0,50≤d≤1,00 30 950
1,00≤d≤3,00 30 900
3,00≤d≤5,00 35 850
5,00≤d≤16,00 35 800
Note: If skin passed, Rm might be increased by up to 50 MPa.
 

 

Mechanical Properties - Bars, Wire And Coils For Cold Heading

Size
(mm)
As Treated
(+AT)
or
Peeled
(+AT+PE)
Cold Drawn
(+AT +C)
Cold Drawn + Solution annealed
(+AT +C +AT)
Cold Drawn + Solution annealed + Skin passed
(+AT +C +AT +LC)
Rm (MPa) max Z (%) min Rm (MPa) max Z (%) min Rm (MPa) max Z (%) min Rm (MPa) max Z (%) min
2≤d≤5 - - - - 600 68 650 63
5<d≤10 590 68 740 - 590 68 640 63
10<d≤25 590 68 700 - 590 68 - -
25<d≤50 590 68 - - - - - -
 

 

Working Temperatures Recommended

Operation °C
Hot forgings deformation 900÷1200
Solution annealing (water, air) 1000÷1100
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