BS 420 S 45
PREMIUM 1.4031
AISI / SAE 420



Technical datasheet (PDF) Technical datasheet
  1,000 mm
Steel Guide Information in the STEEL GUIDE
Alternatives in the STEEL GUIDE
€co-Präz® 500 €co-Präz
500 mm  
250 mm 500 mm
    Precision round steel without machining allowance PRS
  1,000 mm
500 mm 1,000 mm
Standard values to PREMIUM 1.4034 Standard values
Chemical designation: X39Cr13
Working hardness: 50-55 HRC
hardness (deliv. cond.): max. 241 HB

Chemical composition

C Si Mn P S Cr
0,36 0 0 0 0 12,5
- - - - - -
0,42 1,0 1,0 0,04 0,015 14,5
Technical properties Technical properties
Martensitic chromium steel with good mechanical properties. Excellent polishing properties, good corrosion resistance, good chemical resistance and difficult to weld. Due to it's high contents of carbon excellent to use for cutting tools. The material is conditionally acid resistant.
Applications Applications
The Corrosion Resistant Steel BS 420 S 45 is suitable for the following applications: Mechanical engineering, medical technology, machine knives, shears, cutting tools, razors, automotive industry, food technology, fasteners, decoration purposes, kitchen equipment, power engineering, springs, piston rods, screws.

The Corrosion Resistant Steel BS 420 S 45 is available as Precision flat steel with machining allowance, as €co-Präz®, as Hart-Präz® and as Precision round steel with or without machining allowance.

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