- 1.6511, DIN 36CrNiMo4, AISI 4340 round bar
- 1.6511, DIN 36CrNiMo4, AISI 4340 forging
- 1.6511, DIN 36CrNiMo4, AISI 4340 sheet
- 1.6511, DIN 36CrNiMo4, AISI 4340 flat bar
- 1.6511, DIN 36CrNiMo4, AISI 4340 pipe
1.6511, DIN 36CrNiMo4, AISI 4340
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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1.6511, DIN 36CrNiMo4, AISI 4340
Designation by Standards
Brand Name | LH No. | Mat. No. | DIN | EN | AISI |
VCNMO100 | 747 | 1.6511 | 36CrNiMo4 | 36CrNiMo4 | 4340 |
Chemical Composition (in weight %)
C | Si | Mn | Cr | Mo | Ni | V | W | Others |
0.36 | max. 0.40 | 0.65 | 1.05 | 0.20 | 1.05 | - | - | - |
Description
VCNMO100 is a heat treatable, low steel/" target="_blank" class="keylink">alloy steel containing nickel, chromium and molybdenum. It is known for its toughness and capability of developing high strength in the heat treated condition while retaining good fatigue strength.
Applications
For permanently stressed components with large cross sections for automotive and mechanical engineering. For economic performance under severe dynamic stress, parts must be designed for optimum strength or toughness.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: 7.84
Continuous Cooling Transformation (CCT) Diagram
Time-Temperature Transformation (TTT) Diagram
Soft Annealing
Heat to 650-700oC, cool slowly. This will produce a maximum Brinell hardness of 248.
Normalizing
Temperature: 850-880oC.
Hardening
Harden from a temperature of 820-860oC followed by water or oil quenching.
Tempering
Tempering temperature: 540-680oC.
Mechanical Properties in Hardening and Tempering Condition
Diameter (mm) | 0.2 % proof stress (N/mm2) | Tensile strength (N/mm2) | Elongation (%) | Reduction of area (%) | Notch impact energy (J) |
<16 | 900 | 1100-1300 | 10 | 45 | 40 |
17-40 | 800 | 1000-1200 | 11 | 50 | 45 |
41-100 | 700 | 900-1100 | 12 | 55 | 50 |
101-160 | 600 | 800-950 | 13 | 60 | 50 |
161-250 | 550 | 750-900 | 14 | 60 | 50 |
Diagram Tempering Temperature - Mechanical Properties
Forging
Hot forming temperature: 1050-850oC.
Machinability
Machining is best done with this alloy in the annealed or normalized and tempered condition. It can be machined by all conventional methods.
Corrosion Resistance
This is a low steel/" target="_blank" class="keylink">alloy steel and not a corrosion resistant alloy. Protective coating should be used.
Welding
The alloy can be fusion or resistance welded. Preheat and post heat weld procedures should be followed when welding this alloy by established methods.
Cold working
The VCNMO100 alloy may be cold worked, in the annealed condition, by conventional methods and tooling. It has good ductility.
Mechanical properties
Heat treatment
Machining
Welding performance
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