- 1.7701, DIN 51CrMoV4, AISI 4150 round bar
- 1.7701, DIN 51CrMoV4, AISI 4150 forging
- 1.7701, DIN 51CrMoV4, AISI 4150 sheet
- 1.7701, DIN 51CrMoV4, AISI 4150 flat bar
- 1.7701, DIN 51CrMoV4, AISI 4150 pipe
1.7701, DIN 51CrMoV4, AISI 4150
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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1.7701, DIN 51CrMoV4, AISI 4150
Designation by Standards
Brand Name | LH No. | Mat. No. | DIN | EN | AISI |
VZ727 | 727 | 1.7701 | 51CrMoV4 | 51CrMoV4 | 4150 |
Chemical Composition (in weight %)
C | Si | Mn | Cr | Mo | Ni | V | W | Others |
0.54 | 0.28 | 0.90 | 1.05 | 0.20 | - | 0.20 | - | - |
Description
Structural Cr-Mo-V-steel.
Applications
Severely stressed springs for automobile industry - machine and engine parts, torsion springs, threaded springs, bark removing knives.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: 7.78
Continuous Cooling Transformation (CCT) Diagram
Time-Temperature Transformation (TTT) Diagram
Soft Annealing
Heat to 640-680oC, cool slowly. This will produce a maximum Brinell hardness of 255.
Normalizing
Temperature: 850-880oC.
Hardening
Harden from a temperature of 830-860oC followed by oil quenching.
Tempering
Tempering temperature: 350-550oC.
Mechanical Properties in Hardening and Tempering Condition at Ambient Temperature
0.2 % proof stress (N/mm2) | Tensile strength (N/mm2) | Elongation (%) |
1180 | 1370-1670 | 6 |
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.
Mechanical properties
Heat treatment
Machining
Welding performance
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