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X6CrNiMoTi17-12-2 - Nr.1.4571

Steel with characteristics similar to 316; the addition of titanium makes it more stable and further improves its resistance to intercrystalline corrosion.

References and Comparable Standards

Standard Reference:EN 10088-3: 2014 (Hot-rolled and bright products) EN 10272: 2016 (Stainless steel bars for pressure purposes) P.E.D. 2014/68/EU
EUROPE ITALY GERMANY FRANCE UK USA

EN 10088-3: 2005
EN 10272: 2007

(UNI 6900:71)

 (DIN 17440-85)

(NF A 35-574-90)

(BS 970 pt. 3 -91)

 AISI
Grade N°   Werkstoff N°      
X2CrNiMoTi17-12-2 1.4571 X 6 CrNiMoTi 17 12 X2CrNiMoTi17-12-2 1.4571 Z6 CNDT 17 - 12 320S31 (316Ti)

Chemical Composition (Cast Analysis) (%)

C / max Si / max Mn / max P / max S / max Cr Mo Ni Ti
0,08 1,00 2,00 0,045 0,030 16,5÷18,5 2,00÷2,50 10,5÷13,5 5x%C÷0,70

Mechanical Properties - Rough Turned (1X) In The Annealed Condition

Size
(mm)		 Hardness HB max* ** Rp 0,2 (MPa) min Rp 1 (MPa) min* Rm (MPa)** A5 (%) min** KV (J) min Resistance to intergranular corrosion
in the delivery condition in the welded condition
d≤100 215 200 235 500÷700 40 100 YES YES

* Only for guidance
** The maximum HB values may be raised by 100HB or the tensile strenght value may be raised by 200 MPa and the minimum A% value may be lowered to 20% for bars of ≤35 mm

Mechanical Properties - Cold Drawn (2H, 2B) And Ground Bars (2G) In The Solution Annealed Condition

Size (mm) Rp 0,2 (MPa) min Rm (MPa)0 A5 (%) min* KV (J) min
d≤10 400 600÷950 25 -
10<d≤16 380 580÷950 25 -
16<d≤40 200 500÷850 30 100
40<d≤63 200 500÷850 30 100
63<d≤100 200 500÷700 40 100

* Values valid only for size ≥5 mm

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
+C 1200 1200÷1450
+C 1400 1400÷1700
+C 1600 1600÷1900

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

Working Temperatures Recommended

Operation °C
Hot forgings deformation 900÷1200
Solution annealing (water, air) 1000÷1120
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Rodinox® for Coils Rodinox® Plus for Bars
Rodinox® for Coils Rodinox® Plus for Bars

Rodinox® for Coils Rodinox® Plus for Bars