Forged Alloy Steel Round Bar Grade 1.6587 / 17CrNiMo6 18CrNiMo7-6 Alloy Steel Diameter 20-300mm

Alloy steels are more responsive to mechanical and heat treatments than carbon steels. They comprise different types of steels with compositions which exceed the limitations of B, C, Mn, Mo, Ni, Si, Cr, and Va in the carbon steels.

17CrNiMo6/1.65827 Steel is is a heat treatable, low alloy steel containing nickel, chromium and molybdenum as per DIN Germany standard which is known for its toughness and capability of developing high strength in the heat treated condition while retaining good fatigue strength. 17CrNiMo6/1.6587 Steel is widely used in heavy duty Shafts, Gears, Axles, Spindles, Couplings, Pins etc.

7CRNIMO6/1.65827 STEEL CHEMICAL COMPOSITION PER DIN 17210 (CASE HARDENING STEELS)

17CRNIMO6/1.65827 STEEL HEAT TREATMENT

Normalizing For 17CrNiMo6/1.6587
1.Nominal normalizing temperature:840-890°C
2.Hold the temperature for several hours
3.Cooling in the air

Annealing For 17CrNiMo6/1.6587
1.Nominal Annealing temperature:630-650°C
2.Cool slowly in the furance
3.Maximum Brinell hardness of 229

Hardening and Tempering(QT) For 17CrNiMo6/1.6587
1.Nominal Hardening temperature:830-865°C
2.Hold at this temperature then quench in oil
3.Tempering as soon as possible when the temperature low to ambient temperature
4.Heat the steel carefully to a suitable temperature selected by reference to a tempering chart or table
5.The usual tempering temperature is 600°C which depending on the actual requirements
6..keep the material out of the furnace ,then cool in the air

17CRNIMO6/1.65827 STEEL MECHANICAL PROPERTY( FOR REFERENCE ONLY)

1.Tensile strength: 980-1270MPa
2.Yield point: 780MPa
3.Percentage reduction of area after fracture: 40%
4.Elongation after fracture: 11%
5.Impact test (+20°C): Longitud - 45~50J

17CRNIMO6/1.65827 STEEL DELIVERY CONDITION

1.Shape:Round/Square / Flat/Shafts/Rollers/Blocks
2.Surface condition:Black surface/Bright surface
3.Heat Treatment:Normalized/Annealed/QT
4.Straightness:Max 3mm/m(Enhanced straightness may be available on request)
5.Length:3000-5800mm suitable for 20″container. above 6000mm,suitable for 40″ container
6.Grain Size: 5-8 acc to ASTM E112-96
7.Typcial Hardness:HRC28-32
8.Ultrasonic Standard: Sep1921/ASTM A388/EN 10228-3
9.Non Metallic Inclusion: 2 max acc to ASTM E45 /K4≤20 acc to DIN 50602
10.Forging Ratio: minimum 4 : 1
11.Marking: Grade/Weight/Length/Size/Heat Number

17CRNIMO6/1.65827 STEEL QUALITY CERTIFICATION

A material test report(Inspection Certificate EN 10204 3.1) will be provided, documenting the following:
1.Chemical analysis
2.Mechanical properties
3.Surface hardness
4.Non Metallic Inclusion
5.Heat Treatment Process
6.Grain size
7.Forging ratio
8.NDE test method/criteria

1.6587/17CrNiMo6/4820

With high bending strength, contact fatigue strength, and also high hardness and wear resistance, the venter has high hardness and toughness. With excellent comprehensive mechanical properties.

Application

Widely used in transmission gear and mechanical components with high comprehensive mechanical properties.

Product Pictures

We Have State Of The Art Production Lines With Leading Edge Technology For Bearing Steel 100Cr6, Stainless Steel 304 / 316 / Duplex UNS S31803 And Super Duplex UNS S3276, Alloy Steel 4130/4140/8620, High Speed Tool T1/M2/M35/M42 And Die Steel D2/D3/H13/H21/P20. The Products Covers Special Steel Round, Square, Flat, Wire Rod, Wire, Sheet, Pipe, Strip And Heavy Forgings. Produces Forged Round Steel (¢120~850mm) And Square Steel (120~550mm) Of Various Steel Grades.

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