Corrodur 4418 Mod
Super 13Cr, UNS S41426
Description
Corrodur 4418 Mod exceeds the resistance of standard 13% chrome steel grades such as 1.4006 (AISI 410) and 1.4021 (AISI 420) and is therefore the first choice.
Equivalent Materials
Properties
Dimension
Diameter
d50 - 280 mm
Mechanical
Tensile strength
Rm
Chemical properties
Element
Weight %
Comment
-
Balance
11.5 - 13.5 %
4.5 - 6.5 %
1.5 - 3 %
0.5 %
Technological properties
Application areas
Completion tools
Certifications
According to NACE MR0175 Annex B 2.3. and NORSOK M-650
Corrosion properties
No hint on intergranular corrosion acc. to ASTM A 262 Prac. A (left) and Prac. E (right). The Oxalic Acid Etch Test carried out acc. for Prac. A showed no step, ditch or dual structure. Material for Prac. E was sensitized at 675 °C, kept in boiling, acidified CuSO4 for 15 h and then bent to 180°. No cracks were visible on the bent area.
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.
