UNS S29108 – Nickel free austenitic stainless steel for implants
Material number:
Standard UNS:
RoHS 2 – 2011/65/EU:
Machinability:
Hardening capability:
Forming:
Cold working hardening:
Polishing ability:
Magnetism:
Corrosion resistance:
Uses:
The CHRONIFER 108 steel is suitable for applications requiring both a high strength combined with a high corrosion resistance. These properties indicate it for regular bone surgery implants and for joint replacement prosthesis and implants. Its particularly high toughness is of interest for special uses. Its high mechanical properties, fatigue resistance, corrosion resistance and its non allergenic properties legitimate this steel as the material of choice for medical, surgical and dental instruments, orthodontic applications, components for the watch exterior and for hypoallergenic jewelry, ornament and decoration items.
Biodur 108,
nickelfree medical grade
UNS 29108
ASTM F2229-02, Cond. C
annealed, drawn, ground
in approx. 1,8m
round 6.00 mm tolerance h6
special length
ground
h 6
0 kg
0
0
6-000
special-length
ground
h-6-en
6.350
59113106350
Biodur 108
ASTM-F2229-02, UNS 29108,
Implant quality , (Ni < 0.05 %)
Condition B, ARC/ESR remelted
precisely cold drawn, ground
in bars of 3m length (+25/0 mm)
end of bars: pointed, chamfered
ultrasonic inspected per AMS2630Cl.A1,Rev. C
round 6.35 mm (1/4"),tolerance ISO h7
bars 3m
ground
h 7
1054 kg
0
180 620 - 1053.900
6-350
bars-3m
ground
h-7-en
12.700
59113212700
Biodur 108
ASTM-F2229-07, UNS 29108,
AMS 2630, Ni < 0.05 %
Condition B, ARC/ESR remelted
cold drawn, ground, in bars of 3m length (+25/0 mm)
end of bars: chamfered
100% eddycurrent and ultrasonic crack tested
as per AMS 2630 Class A1 Rev. C
diam. 12.70 mm (1/2"), tolerance ISO h8
Biodur 108
stainless implant steel
ASTM-F2229-02,AMS 2630, Ni < 0.05 %
Condition A, ARC/ESR remelted
cold worked, precision ground
in bars of 3m length (+25/0 mm)
end of bars: chamfered
100% eddycurrent and ultrasonic crack tested
rond 14.00 mm, tolerance ISO h8
bars 3m
ground
h 8
147 kg
0
191 012 - 140.900|190 612 - 6.449
14-000
bars-3m
ground
h-8-en
9.000
59113109000
Biodur 108
ASTM-F2229-02, UNS 29108,
AMS 2630, Ni < 0.05 %
Condition B, ARC/ESR remelted
precisely cold drawn, ground
in bars of 3m length (+25/0 mm)
end of bars: chamfered
100% eddycurrent and ultrasonic crack tested
rond 9.00 mm, tolerance ISO h7
bars 3m
ground
h 7
0 kg
0
0
9-000
bars-3m
ground
h-7-en
4.500
59113004500
Biodur 108
ASTM-F2229, UNS 29108, Ni < 0.05 %
Condition B, ARC/ESR remelted
cold worked cond. B, ground
in bars of 3m length (+30/0 mm)
end of bars: pointed, chamfered
100% eddycurrent and ultrasonic crack tested
rond 4.50 mm, tolerance ISO h6
bars 3m
ground
h 6
0 kg
0
0
4-500
bars-3m
ground
h-6-en
40.000
59113240000
Biodur 108
as per ASTM-F2229-12, UNS S29108
implant steel, nickelfree (max 0.05%)
Condition A, ARC/ESR remelted, Co < 0.10%
annealed, precision ground
in bars of 3m length (+25.4/0 mm)
end of bars: chamfered
ultrasonic crack tested per AMS2630 Rev. D
rond 40.00 mm, tolerance ISO h8
bars 3m
ground
h 8
509 kg
0
080 321 - 508.500
40-000
bars-3m
ground
h-8-en
9.530
59113309530
Biodur 108
ASTM-F2229-07, UNS 29108, Ni < 0.05 %
Condition B, ARC/ESR remelted
precisely cold drawn, ground
in bars of 3m length (+25/0 mm)
end of bars: pointed, chamfered
100% eddycurrent crack tested
as per AMS 2630 Rev. C
round 9.53 mm (3/8"),tolerance ISO h9
bars 3m
ground
h 9
321 kg
0
160 414 - 320.524
9-530
bars-3m
ground
h-9-en
3.175
59113203175
BIODUR 108
ASTM-F2229-21 Cond. B, UNS S29108
implant quality, ESR remelted
annealed, cold worked, ground
in 3m lengths (+30/0mm)
pointed/chamfered
diam. 3.175 mm (1/8″), tolerance ISO h8
BIODUR 108
ASTM-F2229-07 Cond. B
implant quality, ESR remelted
annealed, cold worked, ground
in 3m lengths (+30/0mm)
diam. 5.00 mm, tolerance ISO h8
bars 3m
ground
h 8
306 kg
0
120 215 - 306.090
5-000
bars-3m
ground
h-8-en
2.000
59113102000
Chronifer 9007CN
Nickelfree Implant hightech product
as per ASTM-F2581-12 and UNS S29225
cold worked, ground, polished
end of bars: pointed, chamfered
100% eddycurrent crack tested
DIN EN 10277-1: 2008 Tab.1 Cl.3
end of bars: pointed, chamfered
in 3m lengths (+40/0mm)
diam. 2.00 mm, tolerance ISO h7
bars 3m
ground
h 7
0 kg
0
0
2-000
bars-3m
ground
h-7-en
10.000
59113010000
Biodur 108
ASTM-F2229, UNS 29108,
AMS 2630, Ni < 0.05 %
Condition B, ARC/ESR remelted
cold drawn, ground, in 3m bars (+25/0 mm)
end of bars: chamfered
100% eddycurrent and ultrasonic crack tested
diam. 10.00 mm, tolerance ISO h6
bars 3m
ground
h 6
0 kg
0
0
10-000
bars-3m
ground
h-6-en
6.000
59113006000
Biodur 108
ASTM-F2229-02, UNS 29108,
Implant quality , (Ni < 0.05 %)
Condition B, ARC/ESR remelted
precisely cold drawn, ground
in bars of 3m length (+25/0 mm)
end of bars: pointed, chamfered
ultrasonic inspected per AMS2630Cl.A1,Rev. C
diam. 6.00 mm, tolerance ISO h6
bars 3m
ground
h 6
28 kg
0
271 112 - 27.800
6-000
bars-3m
ground
h-6-en
2.500
59113002500
Chronifer 9007CN
Nickelfree Implant hightech product
ASTM-F2581-12 cold work cond.
cold drawn, ground polised Rm 1100-1300 MPa
in 3m bars (+30/0mm)
end of bars: pointed,chamfered
eddycurrent crack tested per EN 10277-1 Tab.1, Kl. 4
round 2.50 mm, Tolerance ISO h6
bars 3m
ground
h 6
294 kg
0
250 221 - 294.200
2-500
bars-3m
ground
h-6-en
4.000
59113004000
BIODUR 108
ASTM-F2229-07, Cond. B
as per UNS 29108
implant quality, ESR remelted
annealed, cold drawn, ground
in 3m bars (+30/0mm)
end of bars: pointed, chamfered
diam. 4.00 mm, tolerance ISO h6
bars 3m
ground
h 6
469 kg
0
190 315 - 469.150
4-000
bars-3m
ground
h-6-en
2.000
59113002000
Chronifer 9007CN
Nickelfree Implant hightech product
ASTM-F2581-12 cold work cond.
cold drawn, ground polised
tensile strength Rm 1100-1300 MPa
in 3m bars (+30/0mm)
end of bars: pointed,chamfered
eddycurrent crack tested EN 10277-1 Tab.1, Kl. 4
round 2.00 mm, Tolerance ISO h6
bars 3m
ground
h 6
257 kg
0
240 321 - 256.825
2-000
bars-3m
ground
h-6-en
50.800
59113250800
Biodur 108
implant steel, nickelfree (max 0.05%)
as per ASTM-F2229-07,
Condition A, ARC/ESR remelted
annealed, precision ground
in bars of apprx. 2.8m length
end of bars: chamfered
ultrasonic crack tested (AMS2630A1, Rev.C)
rond 50.80mm (2″), tolerance ISO h8
bars 3m
ground
h 8
515 kg
0
080 217 - 171.000|301 216 - 343.800
50-800
bars-3m
ground
h-8-en
8.000
59113208000
Biodur 108
ASTM-F2229, UNS 29108, Ni < 0.05 %
ARC/ESR remelted, implant quality
cold worked, cond. B, ground
in bars of 3m length (+30/0 mm)
end of bars: pointed, chamfered
100% eddycurrent and ultrasonic crack tested
rond 8.00 mm, tolerance ISO h8
bars 3m
ground
h 8
421 kg
0
200 117 - 420.940
8-000
bars-3m
ground
h-8-en
10.500
59111310500
Biodur 108 improved
ARC/AOD + ESR remelted
as per UNS 29108
round bars:
annealed, ground, hardness ~28HRC
in bars of apprx. 3.65m length
round 10.50 mm, tolerance ISO h9
special length
ground
h 9
34 kg
0
230 217 - 34.200
10-500
special-length
ground
h-9-en
60.000
59111260000
Biodur 108 improved
ARC/AOD + ESR remelted
as per UNS 29108
round bars,
annealed, ground, hardness ~28HRC
in bars of apprx. 3.65m length
round 60.00 mm, tolerance ISO h8
special length
ground
h 8
77 kg
0
230 217 - 76.630
60-000
special-length
ground
h-8-en
1.100
59100701100
Chronifer 9007CN
as per ASTM-F2581-12 and UNS S29225
stainless steel, nickelfree
cold worked, annealed, on spools
Rm 1000-1200MPa
diam. 1.10 mm, tolerance ISO fg7
in spools
drawn
fg 7
279 kg
0
050 918 - 278.820
1-100
in-spools
drawn
fg-7-en
1.100
59103101100
Chronifer 9007CN
as per ASTM-F2581-12, UNS 29108
cold drawn, annealed, in 3m bars
tensile strength, Rm 1000-1200 MPa
diam. 1.10 mm, tolerance ISO h7
bars 3m
drawn
h 7
19 kg
0
050 918 - 18.600
1-100
bars-3m
drawn
h-7-en
4.760
59113004760
BIODUR 108
ASTM-F2229-07 Cond. B
UNS 29108
implant quality, ESR remelted
annealed, cold worked, ground
in 3m bars (+30/0 mm)
diam. 4.76 mm (3/16″), tolerance ISO h6
bars 3m
ground
h 6
0 kg
0
0
4-760
bars-3m
ground
h-6-en
4.760
59113804760
BIODUR 108
ASTM-F2229-12 UNS S29108, Cond. B
implant quality, ESR remelted
annealed, cold worked, ground
in 3m lengths (+30/0mm)
diam. 4.76 mm (3/16”), tolerance +/-0.010mm
bars 3m
ground
spec.
264 kg
0
170 119 - 264.100
4-760
bars-3m
ground
spec-en
25.400
59113125400
Biodur 108
implant steel, nickelfree (max 0.05%)
as per ASTM-F2229-12, UNS S29108
ARC/ESR remelted
cold worked, precision ground
in bars of 3m length (+/- 102 mm)
end of bars: pointed, chamfered,
eddycurrent crack tested
ultrasonic crack tested (AMS2630A1, Rev.C)
round 25.40mm (1″), tolerance ISO h7
bars 3m
ground
h 7
998 kg
0
300 419 - 337.900|210 421 - 659.600
25-400
bars-3m
ground
h-7-en
1.000
59103001000
Chronifer 9007CN
as per ASTM-F2581-12, UNS 29108
cold drawn, annealed, in 3m bars
tensile strength, Rm 1000-1200 MPa
diam. 1.00 mm, tolerance ISO h6
bars 3m
drawn
h 6
9 kg
0
050 918 - 9.100
1-000
bars-3m
drawn
h-6-en
15.000
59113215000
Biodur 108
stainless implant steel, Ni < 0.05 %
ASTM-F2229-12, AMS 2630A, Rev. C
Condition B, UNS 29108, ARC/ESR remelted
cold worked, precision ground
in bars of 3m length (+30/0 mm)
end of bars: pointed, chamfered
100% eddycurrent and ultrasonic crack tested
rond 15.00 mm, tolerance ISO h8
bars 3m
ground
h 8
748 kg
0
150 519 - 748.000
15-000
bars-3m
ground
h-8-en
22.220
59113122220
Biodur 108
implant steel, nickelfree (max 0.05%)
as per ASTM-F2229-12,
UNS 29108
Condition A, ARC/ESR remelted
cold worked, precision ground
in bars of 3.55m length (+30/0mm)
end of bars: pointed, chamfered,
eddycurrent crack tested
ultrasonic crack tested (AMS2630A1, Rev.C)
round 22.22mm (7/8″), tolerance ISO h7
bars 3m
ground
h 7
229 kg
0
240 919 - 228.900
22-220
bars-3m
ground
h-7-en
10.200
59113210200
Biodur 108
ASTM-F2229, UNS 29108, Ni < 0.05 %
Condition B, ARC/ESR remelted
cold drawn, ground,
in bars of 3m length (+30/0 mm)
end of bars: pointed, chamfered
100% eddycurrent and ultrasonic crack tested
as per AMS 2630 Class A1 Rev. D
diam. 10.20 mm, tolerance ISO h8
bars 3m
ground
h 8
152 kg
0
250 320 - 151.971
10-200
bars-3m
ground
h-8-en
35.000
59113235000
Biodur 108
ASTM-F2229-07, UNS 29108, Ni < 0.05 %
Condition A, ARC/ESR remelted
cold drawn, ground,
in bars of 3m length (+30/0 mm)
end of bars: chamfered
100% eddycurrent and ultrasonic crack tested
as per AMS 2630 Class A1 Rev. D
diam. 35.00 mm, tolerance ISO h8
Biodur 108
implant steel, nickelfree (max 0.05%)
as per ASTM-F2229-12,
UNS S29108
Condition A, ARC/ESR remelted
annealed, precision ground
in bars of ~3m length
end of bars: pointed, chamfered,
eddycurrent crack tested
ultrasonic inspected (AMS2630A1)
round 20.00 mm, tolerance ISO h7
bars 3m
ground
h 7
660 kg
0
300 320 - 659.600
20-000
bars-3m
ground
h-7-en
42.000
59113242000
Biodur 108
implant steel, nickelfree (max 0.05%)
as per ASTM-F2229-12,
Condition A, ARC/ESR remelted
annealed, precision ground
in bars of 3m length (+30/0mm)
ultrasonic inspected as per AMS2630A1, Rev.D
rond 42.00 mm, tolerance ISO h8
bars 3m
ground
h 8
598 kg
0
180 321 - 598.400
42-000
bars-3m
ground
h-8-en
18.000
59113218000
Biodur 108
stainless implant steel, Ni < 0.05 %
ASTM-F2229-12, AMS 2630A, Rev. D
Condition B, UNS 29108, ARC/ESR remelted
cold worked, precision ground
in bars of 3m length (0/-30 mm)
end of bars: pointed, chamfered
100% eddycurrent crack tested
ultrasonic inspected per AMS2630A1, Rev. D
rond 18.00 mm, tolerance ISO h8
bars 3m
ground
h 8
383 kg
0
190 221 - 382.600
18-000
bars-3m
ground
h-8-en
28.000
59113228000
Biodur 108
ASTM-F2229-12, UNS S29108, Ni < 0.05 %
Condition A, ARC/ESR remelted
cold drawn, ground,
in bars of 3m length (+30/0 mm)
end of bars: chamfered
100% eddycurrent and ultrasonic crack tested
as per AMS 2630 Class A1 Rev. D
diam. 28.00 mm, tolerance ISO h8
bars 3m
ground
h 8
701 kg
0
261 020 - 700.900
28-000
bars-3m
ground
h-8-en
60.000
59113360000
Biodur 108
stainless Steel, nickefree, implant quality
ASTM-F2229-12, UNS 29108, Ni < 0.05 %
Condition A, ARC/ESR remelted
annealed, precision ground,
in bars of 3m length (+30/0 mm)
ultrasonic inspected per AMS 2630 Cl A1 Rev. D
as per AMS 2630 Class A1 Rev. D
diam. 60.00 mm, tolerance ISO h9
bars 3m
ground
h 9
483 kg
0
220 221 - 224.200|231 120 - 259.000
60-000
bars-3m
ground
h-9-en
30.000
59113230000
Biodur 108
ASTM-F2229-07, UNS 29108, Ni < 0.05 %
Condition A, ARC/ESR remelted
annealed, precision ground,
in bars of 3m length (+30/0 mm)
end of bars: ponted, chamfered
100% eddycurrent and ultrasonic crack tested
as per AMS 2630 Class A1 Rev. D
diam. 30.00 mm, tolerance ISO h8
bars 3m
ground
h 8
628 kg
0
231 120 - 628.000
30-000
bars-3m
ground
h-8-en
7.000
59113107000
Biodur 108
ASTM-F2229-12, UNS 29108,
Implant quality , (Ni < 0.05 %, Co < 0.10%)
Condition B, ARC/ESR remelted
precisely cold drawn, ground
in bars of 3m length (+30/0 mm)
end of bars: pointed, chamfered
ultrasonic inspected per AMS2630Cl.A1,Rev. D
round 7.00 mm,tolerance ISO h7
bars 3m
ground
h 7
541 kg
0
270 721 - 541.000
7-000
bars-3m
ground
h-7-en
3.500
59113203500
BIODUR 108
ASTM-F2229-21 UNS S29108, Cond. B
Co<0.10%, implant quality,
ESR remelted
annealed, cold worked, ground
in 3m lengths (+30/0mm)
diam. 3.50 mm, tolerance ISO h8
bars 3m
ground
h 8
503 kg
0
030 622 - 502.546
3-500
bars-3m
ground
h-8-en
11.000
59113011000
Biodur 108
ASTM-F2229-07, UNS 29108,
AMS 2630, Ni <0.05 %
Condition B, ARC/ESR remelted
cold drawn, ground, in 3m bars (+25/0 mm)
end of bars: chamfered
100% eddycurrent and ultrasonic crack tested
as per AMS 2630 Class A1 Rev. C
diam. 11.00 mm, tolerance ISO h6
bars 3m
ground
h 6
53 kg
0
060 818 - 52.500
11-000
bars-3m
ground
h-6-en
12.000
59113012000
Biodur 108
ASTM-F2229-07, UNS 29108,
AMS 2630, Ni <0.05 %
Condition B, ARC/ESR remelted
cold drawn, ground, in 3m bars (+25/0 mm)
end of bars: chamfered
100% eddycurrent and ultrasonic crack tested
as per AMS 2630 Class A1 Rev. C
diam. 12.00 mm, tolerance ISO h6
bars 3m
ground
h 6
104 kg
0
060 818 - 103.710
12-000
bars-3m
ground
h-6-en
1.200
59113901200
Chronifer 9007CN
ASTM-F2581-12, as per UNS S29225
Nickelfree Implant hightech product
cold drawn, ground, polished
tensile strength Rm 1100-1300 MPa
in 3m bars (+/-10 mm)
end of bars: chamfered
diam. 1.20 mm, tolerance ISO h5
bars 3m
ground
h 5
0 kg
0
0
1-200
bars-3m
ground
h-5-en
2.000
59100802000
Chronifer 9007CN
as per ASTM-F2581-12 and UNS S29225
stainless steel, nickelfree
cold worked, tensile Rm 1400-1600MPa
in coils of 20kg +/-5kg
diam. 2.00 mm, tolerance ISO +/-0.010mm
in spools
drawn
spec.
0 kg
0
0
2-000
in-spools
drawn
spec-en
1.200
591029012002
Chronifer 9007CN
ASTM-F2581-12, as per UNS S29225
Nickelfree Implant hightech product
cold drawn, ground, polished
tensile strength Rm:1550-1650 MPa
in 2m bars (+/-10 mm)
end of bars: chamfered
diam. 1.20 mm, tolerance ISO h5
bars 2m
drawn
h 5
0 kg
0
0
1-200
bars-2m
drawn
h-5-en
1.200
59102901200
Chronifer 9007CN
ASTM-F2581-12, as per UNS S29225
Nickelfree Implant hightech product
cold drawn, ground, polished
tensile strength Rm 1500-1700 MPa
in 2m bars (+/-10 mm)
end of bars: chamfered
diam. 1.20 mm, tolerance ISO h5
bars 2m
drawn
h 5
0 kg
0
0
1-200
bars-2m
drawn
h-5-en
1.200
591029012001
Chronifer 9007CN
ASTM-F2581-12, as per UNS S29225
Nickelfree Implant hightech product
cold drawn, ground, polished
tensile strength Rm >2000 MPa
in 2m bars (+/-10 mm)
end of bars: chamfered
diam. 1.20 mm, tolerance ISO h5
bars 2m
drawn
h 5
0 kg
0
0
1-200
bars-2m
drawn
h-5-en
2.000
591130020002
Chronifer Special U
German no 9.3891, DIN EN 10277 (2018) Tab. 3
X8CrMnMoN17-14-2
Nickelfree hightech product
cold worked, ground, polished
high strength with tensile Rm 1900 – 2100 MPa
in 3m lengths (+30/0mm)
diam. 2.00 mm, tolerance ISO 286-2/h6
bars 3m
ground
h 6
203 kg
0
120 624 - 203.374
2-000
bars-3m
ground
h-6-en
2.500
591130025002
Chronifer Special U
German no 9.3891, DIN EN 10277 (2018) Tab. 3
X8CrMnMoN17-14-2, RoHS conforme
Nickelfree hightech product
cold worked, ground, polished
high strength with tensile Rm ~1900 – 2100 MPa
in 3m bars (+30/0mm)
eddy current crack tested cl. 4
end of bars: chamfered
diam. 2.50 mm, tolerance ISO 286-2/h6
bars 3m
ground
h 6
108 kg
0
141 025 - 108.000
2-500
bars-3m
ground
h-6-en
3.000
591130030001
Chronifer Special U
German no 9.3891, DIN EN 10277 (2018) Tab. 3
DIN EN 10277, X8CrMnMoN17-14-2, 17-15BM20
Nickelfree hightech product, not for implants
ESR remelted, RoHS conforme
cold worked, ground, polished
high strength with tensile Rm ~1900 – 2100 MPa
in 3m lengths (+30/0mm)
end of bars: chamfered,
100% eddycurrent crack tested cl. 4
diam. 3.00 mm, tolerance ISO 286-2/h6
bars 3m
ground
h 6
157 kg
0
141 025 - 157.000
3-000
bars-3m
ground
h-6-en
2.800
59113002800
Chronifer Special U
German no 9.3891, DIN EN 10277 (2018) Tab. 3
X8CrMnMoN17-14-2
Nickelfree hightech product
ESR remelted, RoHS conforme
cold worked, ground, polished
high strength with tensile Rm ~1900 – 2100 MPa
in 3m bars (+30/0mm)
eddy current crack tested cl. 4
end of bars; chamfered
diam. 2.80 mm, tolerance ISO 286-2/h6
bars 3m
ground
h 6
174 kg
0
141 025 - 174.000
2-800
bars-3m
ground
h-6-en
2.500
59100302500
Chronifer Special U
German no 9.3891, DIN EN 10277 (2018) Tab. 3
X8CrMnMoN17-14-2, RoHS conforme
Nickelfree hightech product
cold worked, ground, polished
high strength with tensile Rm ~1900 – 2100 MPa
in 3m lengths (+30/0mm)
end of bars: chamfered
diam. 2.50 mm, tolerance ISO 286-2/h6
in spools
drawn
h 9
215 kg
0
131 025 - 215.000
2-500
in-spools
drawn
h-9-en
5.300
59111805300
Brief description
Klein designation:
BIODUR 108
Class of steels:
UNS S29108 – Nickel free austenitic stainless steel for implants
Material number:
Standard UNS:
RoHS 2 – 2011/65/EU:
Machinability:
Hardening capability:
Forming:
Cold working hardening:
Polishing ability:
Magnetism:
Corrosion resistance:
Uses:
The CHRONIFER 108 steel is suitable for applications requiring both a high strength combined with a high corrosion resistance. These properties indicate it for regular bone surgery implants and for joint replacement prosthesis and implants. Its particularly high toughness is of interest for special uses. Its high mechanical properties, fatigue resistance, corrosion resistance and its non allergenic properties legitimate this steel as the material of choice for medical, surgical and dental instruments, orthodontic applications, components for the watch exterior and for hypoallergenic jewelry, ornament and decoration items.
The CHRONIFER 108 steel is the nickel free austenitic stainless steel "BioDur® 108 Alloy" of Carpenter. The substitution of Ni with Mn and a high N content permits to keep its microstructure fully austenitic in all conditions. The PESR (Pressure-ESR) remelting ensures its fine and clean microstructure as well as its reproducible fine microstructural properties. This steel is quite tough. It exhibits mechanical properties, fatigue properties and corrosion resistance superior to these of the 316L stainless steel grade satisfying the requirements of the ASTM F138 Standard. This steel is free of δ (Delta) ferrite and stays non-ferromagnetic in all its
conditions. The low S content warrants it a good pitting corrosion resistance.