17CrNiMo6 Steel Round Bar with Polished Surface and OD 6-630mm for Transmission Spline Applications

Price Negotiable
Price: US $750-1,250 / Ton
MOQ: 1 Ton
Delivery Time: Negotiable
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
Chemical Composition (%)
CSiMnNiPSCrMo
0.15 - 0.21max 0.40.5 - 0.91.4 - 1.7max 0.025max 0.0351.5 - 1.80.25 - 0.35
Mechanical Properties
Nominal ThicknessTensile Strength (Rm)Brinell Hardness (HBW)
to 16 mm1200 MPa255 (+S)
229 (+A)
179-229 (+TH)
159-207 (+FP)
International Equivalent Grades
GermanyFranceEnglandItalyChina
17CrNiMo6
17CrNiMo7
18NCD6820A1618NiCrMo717Cr2Ni2Mo
Heat Treatment Conditions
+A: Soft 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
Product Gallery
Transmission spline forging close-up view Steel material cross-section showing grain structure Finished transmission components assembly Quality inspection of forged splines Manufacturing process demonstration Packaged transmission splines ready for shipment
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
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

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person Gao Ben

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