Steel PK330 (Mat.No. 1.4006, DIN X12Cr13, AISI 410)
Designation by Standards

Brand Name Ravne No. Mat. No. DIN EN AISI
PK330 330 1.4006 X12Cr13 X10Cr13 410

Chemical Composition (in weight %)

C Si Mn Cr Mo Ni V W Others
0.12 max. 1.0 max. 1.50 12.50 - - - - -

Description
410 is the basic martensitic stainless which will attain high mechanical properties after heat treatment. It has good impact strength, corrosion and scaling resistance up to 649oC.

Applications
Cutlery, steam and gas turbine blades and buckets, bushings, valve components, fasteners, screens and kitchen utensils. Structural parts to be used in water or steam, components for paper, textile and food industry.

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 216
Density [g/cm3]: 7.70
Thermal conductivity [W/m.K]: 30.0
Electric resistivity [Ohm mm2/m]: 0.60
Specific heat capacity[J/g.K]: 0.46

Coefficient of Linear Thermal Expansion 10-6 oC-1

20-100oC 20-200oC 20-300oC 20-400oC 20-500oC
10.5 11.0 11.5 12.0 12.0

Modulus of Elasticity [103 N/mm2]

20oC 200oC 400oC
216 205 190

Continuous Cooling Transformation (CCT) Diagram


Click the image to enlarge the diagram.

Soft Annealing
Heat to 730-810oC, air cooling. Structure is ferrite with spherical carbides.

Hardening
Harden from a temperature of 950-1000oC followed by oil, air quenching.

Tempering
Tempering temperature: 650-750oC. Transformation structure with ferrite.

Mechanical Properties at Room Temperature

Size range mm Heat treatment condition 0.2 % proof stress (N/mm2) Tensile strength (N/mm2) Elongation (%) Notch impact energy (ISO-V) (J) Hardness HB max.
d<=160 Q+T 650 450 650-850 15 25 220

0.2 % Proof Stress (N/mm2) at Elevated Temperatures

Condition 100oC 150oC 200oC 250oC 300oC 350oC 400oC
Q+T 650 420 410 400 385 365 335 305

Forging
Hot forming temperature: 1100-850oC.

Machinability
Tough, draggy chips with heavy build-up. While this alloy can be machined in the annealed condition, it tends to perform better in the cold drawn or heat treated condition.

Embittlemnt: It must be in mind that the temperature range between 425 and 525oC must be avoided owing to embritllement at 475oC.

Corrosion Resistance
Not known for its exceptional corrosion resistance, this alloy will stand up well to mild atmospheric conditions and fresh waters.

Welding
Most common methods of welding can be successfully employed with this alloy. To reduce the chance of cracking, it is advisable to preheat the workpiece to 177-204oC. Post-weld annealing is recommended to reattain maximum ductility. Filler meta.

Forms manufactured: Please see the Dimensional Sales Program.

Disclaimer
The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.

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