This website uses cookies to improve service quality. You will find more information about cookies on the privacy policy page.
Printdur® Ni625
2.4856, Alloy 625
Description
1.4301 is the standard for the austenitic grades of stainless steel due to its good corrosion resistance, ease of formability and fabrication coupled with its aesthetic appearance in the polished, ground and brushed conditions. Since 1.4301 is not resistant to intergranular corrosion in the welded condition, 1.4307 should rather be specified if welding of larger sections is required and no solution annealing treatment after welding can be performed. Surface condition plays an important role in the corrosion resistance of this steel with polished surfaces exhibiting far superior corrosion resistance compared with rougher surfaces on the same material.
Related Standards
Equivalent Materials
Properties
General
Density ρ
7.9 g/cm³ at 20 °C
Mechanical
Elongation A5 A5
45 % at 20 °C
Elongation A5, transverse A5,trans
35 % at 20 °C
Hardness, HBW HBW
215 [-] at 20 °C
Hardness, Rockwell C HRC
22 [-] at 20 °C
Impact strength, Charpy notched Ivnot
100 kJ/m² at 20 °C
Tensile strength Rm
515 - 680 MPa at 20 °C
Tensile strength, transverse Rm,trans
515 - 680 MPa at 20 °C
Yield strength Rp0.2 Rp0.2
205 MPa at 20 °C
Yield strength Rp0.2, transverse Rp0.2,trans
205 MPa at 20 °C
Thermal
Coefficient of thermal expansion α
1.6E-5 - 1.8E-5 1/K at 20 °C
Specific heat capacity cp
500 J/(kg·K) at 20 °C
Thermal conductivity λ
15 W/(m·K) at 20 °C
Chemical properties
Element
Weight %
Comment
18 - 22 %
9 %
8 %
balance
5 %
3.5 %
Technological properties
Application areas
Automotive industry, Building and Construction industry, Chemical industry, Food and Beverage industry,Decorative items and Kitchen Utensils, Electronic Equipment, Petrochemical industry
Corrosion properties
Good - Due to the moderate carbon content of 1.4301, this grade of stainless steel is prone to sensitisation. The formation of chromium carbides and the associated chromium depleted regions that form around these precipitates make this grade of steel susceptible to intergranular corrosion. Although no danger of intergranular corrosion exists in the supplied (solution annealed) condition, intergranular corrosion may occur after welding or high temperature processing. 1.4301 is resistant to corrosion in most environments provided the chloride and salt concentrations are low. 1.4301 is not recommended for applications where it comes into contact with sea water, nor is it recommended for use in swimming pools.
General machinability
Average - For applications which require machining, the NIRO-CUT® 4301 grade is recommended since the composition and production route followed to produce this grade compensates for the work hardening tendency of the material.
Processing history
Quenched
Welding
Excellent - 1.4301 is weldable with or without the use of filler material. If the use of a filler metal is required, then the use of Novonit® 4316 (AISI 308L) would be recommended. Maximum interpass temperature 200 °C. Post weld heat treatment is not necessary.
This material data has been provided by Deutsche Edelstahlwerke Specialty Steel (DEW).
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.
