- 1.4122, DIN X39CrMo17-1 round bar
- 1.4122, DIN X39CrMo17-1 forging
- 1.4122, DIN X39CrMo17-1 sheet
- 1.4122, DIN X39CrMo17-1 flat bar
- 1.4122, DIN X39CrMo17-1 pipe
1.4122, DIN X39CrMo17-1
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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1.4122, DIN X39CrMo17-1
Designation by Standards
Brand Name | LH No. | Mat. No. | DIN | EN | AISI |
PK335 | 335 | 1.4122 | X39CrMo17-1 | - | - |
Chemical Composition (in weight %)
C | Si | Mn | Cr | Mo | Ni | V | W | Others |
0.39 | max. 1.00 | max. 1.00 | 16.50 | 1.05 | max. 1.00 | - | - | - |
Description
Stainless steel with very good wear, corrosion reistance and industrial polishability.
Applications
PK335 is used for pump shafts, fitting and compressor parts, as well as steam and water control valves and boat shafts for use in fresh water.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 223
Density [g/cm3]: 7.71
Thermal conductivity [W/m.K]: 15
Electric resistivity [Ohm mm2/m]: 0.80
Specific heat capacity[J/g.K]: 0.43
Coefficient of Linear Thermal Expansion 10-6 oC-1
20-100oC | 20-200oC | 20-300oC | 20-400oC | 20-500oC | 20-600oC | 20-700oC | 20-800oC |
10.7 | 11.7 | 11.7 | 11.7 | 11.8 | 11.9 | 12.4 | 12.9 |
Modulus of Elasticity [103 N/mm2]
100oC | 200oC | 400oC |
223 | 205 | 190 |
Thermal conductivity [W/m.K]
20-200oC | 20-200oC | 20-400oC |
10.4 | 10.8 | 11.6 |
Continuous Cooling Transformation (CCT) Diagram
Time-Temperature Transformation (TTT) Diagram
Click the image to enlarge the diagram.
Soft Annealing
Heat to 750-880oC, cool slowly in furnace or air. Structure is ferrite with spherical carbides. This will produce a maximum Brinell hardness of 250.
Hardening
Harden from a temperature of 980-1050oC followed by oil quenching. Hardness after quenching is 49 HRC.
Tempering
Tempering temperature: 150-200oC, 650-750oC
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) |
d<=60 | Q+T 750 | 500 | 750-950 | 12 (Long) | 20 (Long) |
61<d<=160 | Q+T 750 | 500 | 750-950 | 12 (Long) | 14 (Long) |
0.2 % Proof Stress (N/mm2) at Elevated Temperatures
100oC | 150oC | 200oC | 250oC | 300oC | 350oC | 400oC |
540 | 535 | 530 | 520 | 510 | 490 | 470 |
Tempering Diagram
Forging
Hot forming temperature: 1100-800oC, slow cooling.
Machinability
Metal-cutting machining is the same as for special engineering steel grades of corresponding strength.
Welding
Limited weldability using the manual arc and TIG welding processes, as hardening occurs in the heat-affected zone. Preheat to between 300 and 400oC. Filler metals: 1740, Nicro82.
Mechanical properties
Heat treatment
Machining
Welding performance
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