Wire made of Stainless Steel

DN Meditech utilizes 1.4031 and 1.4310 for the production of wire for medical applications.

• Diameter range currently > 0.20 mm - < 5.0 mm
• Diameter tolerances as tight as ± 0.005mm are possible
• Types of packaging (eg. on spool type SK 250)
• 3.1 Mill test certificate

1.4031

Characteristics and scope of application

• 1.4031 | AISI 420 has superior properties for hardenable surgical needle production processes.
• Modified production process ensures a microstructure with minimal core carbide segregation.
• Drillability and ductility are optimally designed to meet the customer's production requirements.
• Good corrosion resistance in moderate aggressive chlorine free solvents and organic acids.
• Brilliant wire surfaces enhance productivity and reduce scrap rates.

Standard designations

• DN Meditech Designation 1.4031/70
• Alloy number / UNS / AISI 1.4031 / S42000 / 420X
• Standards DIN EN 10088-3 (X20Cr13) ; ASTM F899
• Typical chemical composition C 0.38% Si 0.40% Mn 0.40% P 0.025% S 0.018% Cr 13.50%

1.4310

Characteristics

• 1.4310 is an austenitic chromium-nickel steel, which is widely used in medical technology.
• Special production process results in a microstructure with a high level of bending ductility.
• The α'-martensitic formation is enhanced during cold forming
• Leads to high tensile strength even atfter relatively low reduction rates.
• Bright and shiny wire surface improves productivity and reduces scrap rates.

Applications

• Surgical needles
• Surgical instruments
• Dental instruments

Standard designations

• DN Meditech Designation: 1.4310/70
• Alloy number / UNS / AISI: 1.4310 / S30100 / S30200 / 301 / 302
• Standards: DIN EN 10088-3 (X10CrNi18-8) ; ASTM F899
• Typical chemical analysis: C 0.10%  Si 1.00%  Mn 1.00%  Cr 17.50%  Mo 0.40%  Ni 8.00%  S 0.008%

Physical properties (Average values)

• Modulus of elasticity E 20°C [GPa] 200 
• Density [kg/dm³] 7.9 
• Thermal conductivity 20°C [W/m K] 15.0 
• Specific heat 20°C [kJ/kg K] 0.5 
• Electrical resistance 20°C [Ω mm2/m] 0.73