- 1.4747, DIN X80CrNiSi20 round bar
- 1.4747, DIN X80CrNiSi20 forging
- 1.4747, DIN X80CrNiSi20 sheet
- 1.4747, DIN X80CrNiSi20 flat bar
- 1.4747, DIN X80CrNiSi20 pipe
1.4747, DIN X80CrNiSi20
Production specification
Square-shape steel: 1mm to 4000mm
Plate steel:0.1mm to 4000mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-1800mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.
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1.4747, DIN X80CrNiSi20
Designation by Standards
Brand Name | LHo. | Mat. No. | DIN | EN | AISI |
PK9 | 923 | 1.4747 | X80CrNiSi20 | X80CrNiSi20 | - |
Chemical Composition (in weight %)
C | Si | Mn | Cr | Mo | Ni | V | W | Others |
0.80 | 2.25 | max. 1.00 | 20.00 | - | 1.38 | - | - | (P+S)=max.0.060 |
Description
Valve steel.
Applications
Inlet and lower stressed exhaust valves.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: No data
Density [g/cm3]: Approx. 7.7
Thermal conductivity [W/m.K]: No data
Electric resistivity [Ohm mm2/m]: No data
Specific heat capacity[J/g.K]: No data
Coefficient of Linear Thermal Expansion 10-6 oC-1
20-400oC | 20-500oC | 20-600oC | 20-700oC | 20-800oC | 20-900oC |
10.4 | 10.6 | 10.9 | 11.2 | 11.6 | 12.0 |
Soft Annealing
Heat to 820-860oC, cool slowly.
Hardening
Harden from a temperature of 1050-1080oC followed by oil or air quenching.
Tempering
Tempering temperature: 700-750oC.
Mechanical properties at at ambient temperature
Condition: Hardened and tempered
0.2% proof stress: 685 N/mm2
Tensile strength: 880-1130 N/mm2
Elongation: 5%
Reduction: 12%
Tensile Strength in N/mm2 vs. Temperature in oC
500oC | 600oC | 700oC | 800oC |
590 | 250 | 140 | 60 |
Forging
Hot forming temperature: 1100-900oC.
Machinability
No data.
Mechanical properties
Heat treatment
Machining
Welding performance
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