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X39Cr13

X40Cr13,1.4031, S42040, S136, 4Cr13

X40Cr13 is a kind of martensitic stainless steel with good mechanical processing performance. After heat treatment (quenching and tempering), it has excellent corrosion resistance, polishing performance, high strength and wear resistance.

X40Cr13 has similar performance and usage to 3Cr13. Because of the higher carbon content, X40Cr13 after quenching strength, hardness and corrosion resistance is higher than 3Cr13. It generally has a hardness of over HRC48 and good corrosion resistance after quenching, but its toughness and corrosion resistance slightly lower.

Its welding performance is poor,so itusually can not be used as a welding part.

It has strong resistance to nitric and organic acids.

It has good oxidation resistance, can be used in 600~650℃ for a long time.

(1) Suitable for high mirror high precision injection mold and cavity.

(2) Since of high hardness and toughness after heat treatment,itcan be used for stamping mold accessories, templates, dinner tools, outdoor tools, surgical tools, medical scissors, cutting tools, etc.

(3) It can be used for hot oil pumps, valves, valves, bearings, nozzles, springs, etc., which require certain corrosion resistance.

X40Cr13 as per EN 10088-3 (wt%）

Annealing temperature:750°C,air cooling /quick cooling, hardness: max. 235HBW

Quenching temperature: 1050~1100℃, oil cooling, hardness 50HRC min.

Tempering temperature: 200~300℃,air cooling /quick cooling.

The metallographic structure is characterized by martensitic type.

(1)Cold worked

(2)Cold worked and bright annealed

(3)Cold worked, annealed and pickled

(4)Cold worked, polished (MP, EP etc.)

(5)Cold worked, bright annealed, polished (MP, EP etc.)

Chemical composition

Tension

Hardness

Micro structure

Eddy current

Surface condition

Shape and dimension

Positive Material Identification