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17CrNiMo6 Steel Round Bar with Polished Surface and OD 6-630mm for Transmission Spline Applications
Product Details
| Model NO. | 17CrNiMo6 | Surface Treatment | Polished |
|---|---|---|---|
| Alloy Type | Alloy | Diameter Range | OD 6-630mm |
| Production Capacity | 500tons | Carbon Content | 0.15 - 0.21% |
| Silicon Content | Max 0.4% | Manganese Content | 0.5 - 0.9% |
| Nickel Content | 1.4 - 1.7% | Phosphorus Content | Max 0.025% |
| Sulfur Content | Max 0.035% | Chromium Content | 1.5 - 1.8% |
| Molybdenum Content | 0.25 - 0.35% | Tensile Strength | 1200 MPa |
| Brinell Hardness | 255 HBW | ||
| Highlight | 17CrNiMo6 Steel Round Bar,Polished Surface Alloy Steel Bar,OD 6-630mm Transmission Spline |
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Product Description
Rectangle Forging Transmission Spline - 34CrNiMo6 / 17CrNiMo6
High-quality transmission spline forgings manufactured from premium case-hardening steels 34CrNiMo6 and 17CrNiMo6, certified to SGS standards for quality assurance.
Material Specifications
Grade 18CrNiMo7-6 (1.6587)
Classification: Alloy special steel
Standard: EN 10084:2008 Case hardening steels
Standard: EN 10084:2008 Case hardening steels
Chemical Composition (%)
| C | Si | Mn | Ni | P | S | Cr | Mo |
|---|---|---|---|---|---|---|---|
| 0.15 - 0.21 | max 0.4 | 0.5 - 0.9 | 1.4 - 1.7 | max 0.025 | max 0.035 | 1.5 - 1.8 | 0.25 - 0.35 |
Mechanical Properties
| Nominal Thickness | Tensile Strength (Rm) | Brinell Hardness (HBW) |
|---|---|---|
| to 16 mm | 1200 MPa | 255 (+S) |
| 229 (+A) | ||
| 179-229 (+TH) | ||
| 159-207 (+FP) |
International Equivalent Grades
| Germany | France | England | Italy | China |
|---|---|---|---|---|
| 17CrNiMo6 17CrNiMo7 | 18NCD6 | 820A16 | 18NiCrMo7 | 17Cr2Ni2Mo |
Heat Treatment Conditions
+A: Soft annealed
+AC: Annealed for carbide spheroidization
+AR: As rolled
+AT: Solution annealed
+AC: Annealed for carbide spheroidization
+AR: As rolled
+AT: Solution annealed
+FP: Ferrite-pearlite structure
+N: Normalized
+QT: Quenched and tempered
+TH: Treated to hardness range
+N: Normalized
+QT: Quenched and tempered
+TH: Treated to hardness range
Product Gallery
Applications
- Transmission systems for automotive and industrial equipment
- Tractor motors and medium-small automotive components
- High-class carburization and cyanide carburizing parts
- Oil drilling equipment, mining claws and cones
- Carburized gears, pinions, shafts, bearings, and crankshafts
Available Sizes & Conditions
Round Bar Diameter: 12-380mm
Forms: Round bars, flat bars, plates, blocks
Conditions: Pre-hardened, hot rolled, annealed, quenched and tempered
Surface Finish: Black, pre-machined, grinding, polish
Forms: Round bars, flat bars, plates, blocks
Conditions: Pre-hardened, hot rolled, annealed, quenched and tempered
Surface Finish: Black, pre-machined, grinding, polish
Quality Assurance & Services
Why Choose Our Products
- Government-Owned Mill Quality: Materials sourced directly from certified steel manufacturers
- ISO 9001 Certified: Comprehensive quality management system
- Competitive Pricing: High-quality products at affordable prices
- Fast Delivery: Priority treatment for all orders with shortest lead times
Value-Added Services
- Metal cutting and sizing to specifications
- Machining services: blanking, milling, grinding
- Custom heat treatment processes
- Sawing for small or large quantities
- Sawing-to-size capabilities
- Unique inventory of specialty steels
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