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Part Number

Hardenable Stainless Steel without sulfur

Chemical Composition Limits

Weight % C Si Mn P S Cr Mo Ni Fe
CHRONIFER M-4057  0.12-0.22 1.00 max 1.50 max  0.040 max 0.015 max  15.50-17.00 1.50-2.50 2.00-2.50 Rem 

Other Chemically similar Specifications 

Weight % C Si Mn P S Cr Mo Ni Fe
WS 1.4057  0.12-0.22 1.00 max 1.50 max  0.040 max 0.015 max  15.50-17.00 1.50-2.50 2.00-2.50 Rem 
DIN X 17 CrNi 16-2  0.12-0.22 1.00 max 1.50 max  0.040 max 0.015 max  15.50-17.00 1.50-2.50 2.00-2.50 Rem 

AFNOR 

X17Cr Ni 16-2

                 
AISI 431 ~  0.12-0.22 1.00 max 1.50 max  0.040 max 0.015 max  15.50-17.00 1.50-2.50 2.00-2.50 Rem 

Chronifer M-4057 material is Manufactured in Rod, Bar and coil

AISI 431 Stainless Steel without Sulphur

 

Material Properties

AISI 431 has a better corrosion resistance (after hardening and polishing of the parts) then the 420 or 420F because of low carbon and sulfur content, plus so percentage of Nickel and Molybdenum.

 

Availability

Bars: cold drawn, ground and polished

Bars Length: 3m surface roughness N5-N6

 

Standard Tolerances

Diameter

ISA h7

Length of bars: +50/-0 mm

Out of roundness/eccentricity: 1/2 of diameter tol.

 

Heat Treatment

Hardening: 950-1050 C

Soft annealing: 600-800C

Max obtainable hardness 47 HRC

 

Cutting rate 

20-30 m/min (approximate value, depending on the lubrication, the cutting tools, the shape of parts)

 

Stock Range:

3.00-8.00 mm round full material in stock, other dimensions on request

 

Disclaimer

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

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