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18CrNiMo7-6 Forged Round Bar DIN1.6587 Gear Steel Bar 17CrNiMo6

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18CrNiMo7-6 Forged Round Bar DIN1.6587 Gear Steel Bar 17CrNiMo6

Brand Name : Guangda

Certification : DNV, BV, Rina, ISO, GL, ABS, LR ,CCS ,PED

Place of Origin : Jiangsu China

Payment Terms : L/C, D/A, D/P, T/T

Supply Ability : 500000 ton/year

Delivery Time : 15-45 work days

Material : 18CrNiMo7-6 DIN1.6587 17CrNiMo6

Heat treatment : Annealing,Normalizing,Tempering ,QT etc .

Standard : EN,AISI, ASTM, DIN, JIS, GB, BS

Shape : Round, Flat, Hexagonal etc

Surface : Black, Turned , Rough turnned ,premachined,Polish

Length : Max 10000mm (10m)

Diameter : φ150-1500mm

Trade Mark : GD

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18CrNiMo7-6 forged round bar DIN1.6587 gear steel bar 17CrNiMo6

18CrNiMo7-6 is a case hardening steel with high toughness. There are a number of variants with high cleanliness requirements. All variants possess tighter composition ranges compared to the standard. One variant is produced with the quality class IQ (isotropic quality). This ensures a very low number of elongated sulphide inclusions which will give more isotropic properties. The high oxidic cleanliness will enable the steel to meet the same high cleanliness demands as for re-melted qualities.

Forged Round Bar 18CrNiMo7-6 DIN 1.6587 Product features

Material 18CrNiMo7-6,Din1.6587 17CrNiMo7-6
Type Forged
Diameter φ150-1500mm
Length Max 10000mm (10m)
Surface Black, peeled, polishing, bright, sand blast, etc.
Application Transmission gear, wind power gear ,Heavy Duty Bushings and Bearings, Cam Followers, Clutch Dogs, Compressor Bolts, Extractors, Fan Shafts, Heavy Duty Gears, Pump Shafts, Sprockets, Tappets, Wear Pins, Wire Guides etc..

Forged Round Bar 18CrNiMo7-6 DIN 1.6587 Chemical Compostion

Standard Grade C Si Mn P S Ni Cr Mo
EN 10084 18CrNiMo7-6 0.15-0.21 ≤ 0.4 0.50-0.90 ≤ 0.025 ≤ 0.035 1.4-1.7 1.5-1.8 0.25-0.35
1.6587

Forged Round Bar 18CrNiMo7-6 DIN 1.6587 Mechanical properties

  1. 18CrNiMo7-6 has many grade, with different heat treatment process, different grade will have different performance on mechanical properties.
  2. Grade 159A - Variant with low sulphur content and high cleanliness demands
  3. Grade 159B - Variant with controlled sulphur content for consistent machinability and +H hardenability
  4. Grade 159Q - Isotropic properties (IQ) and better fatigue strength due to higher cleanliness levels, and a finer size and distribution of non-metallic inclusions
  5. Grade 159X - Variant with controlled sulphur content for consistent machinability and +H hardenability
  6. Grade 159S - Variant with increased sulphur content.
  7. Grade 4761(MoCN216) - Low sulphur variant of Imatra.

Forged Round Bar 18CrNiMo7-6 DIN 1.6587 Equivalent grades

EN 10084 Steel No. ISO 683-11:1987 Germany Finland
18CrNiMo7-6 1.6587 18CrNiMo7 17CrNiMo6 511


Forged Round Bar 18CrNiMo7-6 DIN 1.6587 Heat Treatment

  • Normalizing:850 – 880°C/air
  • Soft annealing:650 – 700°C/furnace
  • Stress relieve:630- 650oC
  • Carburising:880 – 980°C
  • Core hardening:830 – 870°C/water
  • Intermediate annealing:630 – 650°C
  • Case hardening:780 – 820°C/water
  • Tempering:150 – 200°C

18CrNiMo7-6 Forged Round Bar DIN1.6587 Gear Steel Bar 17CrNiMo6

18CrNiMo7-6 Forged Round Bar DIN1.6587 Gear Steel Bar 17CrNiMo6

18CrNiMo7-6 Forged Round Bar DIN1.6587 Gear Steel Bar 17CrNiMo6

18CrNiMo7-6 Forged Round Bar DIN1.6587 Gear Steel Bar 17CrNiMo6

large diameter steel bar

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alloy steel round bar


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