WNr 1.0501 Alloy Steel Bar 1.0501 Round Bars 1.0501 Rods

Product Description

WNr 1.0501 (C35) Steel Overview

WNr 1.0501 is a medium-carbon unalloyed quality steel, officially designated as C35 under the EN 10083-2 standard. It is a fundamental engineering material known for its versatility, offering a significant step up in strength from mild steel while remaining more ductile and easier to process than higher carbon grades like C45.

This grade is a "through-hardening" steel, frequently utilized in the normalized or quenched and tempered condition for components subjected to moderate mechanical loads.

Technical Specifications (Typical)

Chemical Composition (%)

The composition is balanced to provide a reliable response to thermal processing while maintaining a clean microstructure.

International Equivalents

WNr 1.0501 is one of the most widely recognized material numbers globally, corresponding to:

Key Characteristics

1. Workability: 1.0501 is highly valued for its excellent machinability in the normalized state. It allows for high cutting speeds and produces a high-quality surface finish on turned parts.

2. Heat Treatment: While it has limited through-hardenability for very large sections, it is ideal for induction or flame hardening. This process allows for a wear-resistant surface layer (up to 50–54 HRC) while the core remains tough.

3. Weldability: Moderate. Due to the carbon content ($0.35\%$), it is susceptible to hydrogen-induced cracking. Pre-heating to 150°C–200°C and slow cooling are recommended for critical structural joints.

4. Toughness: It provides superior impact resistance compared to C45, making it a safer choice for components that might experience sudden shock loads.

Common Available Formats

• Round Bars: Supplied in hot-rolled (black), peeled, or bright-drawn conditions. Bright bars are the preferred choice for CNC machining of shafts and pins.

• Rods: Commonly used as starting stock for cold-heading applications, wire drawing, and forged fasteners.

• Forged Parts: Widely used in drop forging for levers, connecting rods, and crankshafts in the light machinery and automotive industries.

Common Applications

• General Engineering: Gears, racks, spindles, axles, and medium-load shafts.

• Automotive: Steering links, control arms, and transmission components.

• Fasteners: High-tensile studs and bolts (specifically those aimed at Property Class 8.8 when heat-treated).

• Construction: Tie rods, pivot pins, and load-bearing structural connectors.

Thermal Processing Data

• Forging: 850°C – 1100°C.

• Normalizing: 860°C – 890°C.

• Soft Annealing: 650°C – 700°C.

• Hardening: 840°C – 880°C (Quench in Water or Oil).

• Tempering: 550°C – 660°C.