SKB1 series materials are high quality nitrided steel 38CrMoAL, SCM645

Nitriding insulation 505 ° C 38 hours, 550 ° C 34 hours

Nitrided layer depth: 0.48mm or more on one side

Nitrided layer hardness: HV960 or more

Straight line length is less than 0.06 per meter

Hole in the production range of the pipe (φ14-φ250) length 5000mm