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Our Chronifer M-17B material is
Manufactured in Rod, Bar and coil
AISI 440B ~ Stainless Steel
Material Properties
This steel is designed to provide
stainless properties with excellent hardness. In some respects it behaves similarly
to tool steel. Chronifer M 17B resists corrosion from mild atmospheres,
fresh water steam, ammonia, many petroleum products and organic materials and
several mild acid environments.
Availability
Coils: Cold drawn 10-35kg coil
Bars Ø 0-1.99mm: Cold drawn
and polished
Bars Ø 2.00-40mm: Cold drawn,
ground and polished
Bars Length : 2m or 3m. Surface
roughness N5-N6
Standard Tolerances
Diameter: h7
Out of roundness/cylindricity :1/2 of
dia tolerance
Tolerance in length : +50/-0mm
Corrosion Resistance
This grade is used in the hardened
and tempered condition for a good corrosion resistance. For optimum,
corrosion resistance, surfaces must be free of scale and foreign particles.
Heat Treatment
Soft annealing: 750-800ºC
Slow furnace cooling (2-4 hours)
Hardening: 1000-1080ºC
Max obtainable hardness 57-59 HRC
Cutting Rate
20-35m/min (approx value, depending
on the lubrication oil, the cutting tools, the shape of parts)
Stock Range
Standard dimensions from Ø
0.80 to 24.00mm with many intermediate dimensions.
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