EU EN 17Cr3 Alloy Steel Bar DIN 17Cr3 Round Bars 17Cr3 Rods

EU EN 17Cr3 Alloy Steel Bar DIN 17Cr3 Round Bars 17Cr3 Rods

Name: EU EN 17Cr3 Alloy Steel Bar DIN 17Cr3 Round Bars 17Cr3 Rods
Brand: JAYANT IMPEX
Price: 95.0 INR
Availability: InStock

95.0 INR/Kilograms

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Product Details:

Tolerance H8, H9, or as specified
Type Round Bar / Rod
Specific Use Shafts, Gears, Fasteners, and other precision engineering components
Standard EU EN 10084 / DIN 17Cr3
Material Alloy Steel 17Cr3
Technique Hot Rolled, Cold Drawn
Application Construction, Engineering, Automotive Parts, Machinery
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EU EN 17Cr3 Alloy Steel Bar DIN 17Cr3 Round Bars 17Cr3 Rods Price And Quantity

Minimum Order Quantity 1 Kilograms
Price 95.0 INR/Kilograms

EU EN 17Cr3 Alloy Steel Bar DIN 17Cr3 Round Bars 17Cr3 Rods Product Specifications

Technique Hot Rolled, Cold Drawn
Tolerance H8, H9, or as specified
Application Construction, Engineering, Automotive Parts, Machinery
Standard EU EN 10084 / DIN 17Cr3
Type Round Bar / Rod
Specific Use Shafts, Gears, Fasteners, and other precision engineering components
Grade 17Cr3
Material Alloy Steel 17Cr3
Length 2 m to 6 m (customized on request)
Diameter 5 mm to 350 mm
Finish Bright, Black, Peeled
Processing Machined, Annealed

Test Certificates Available on Request
Impact Value 27 Joule (at room temperature)
Supply Condition Normalized, Quenched and Tempered
Surface Condition Polished, Smooth
Tensile Strength 600-750 MPa
Shape Round
Yield Strength 410 MPa min
Delivery State Straightened, Bundled
Hardness 167-229 HB (as supplied)
Elongation 16% min
Heat Treatment Annealed, Carburized, Nitrided

Product Description

17Cr3 (Werkstoffnummer 1.7016) is a European standard (EN ISO 683-3 / EN 10084) chromium-alloyed low-carbon steel designed specifically for case hardening (carburizing).

Compared to other popular case-hardening grades like 16MnCr5, 17Cr3 relies predominantly on Chromium rather than Manganese to achieve its depth of hardenability. It is widely specified across Europe for small-to-medium-sized machinery parts that require a tough core to absorb shock, paired with an intensely hard outer shell to resist severe friction and abrasive wear.

Technical Specifications & Chemical Composition

The primary alloying element is Chromium, which promotes a uniform response to gas, liquid, or vacuum carburization. This ensures excellent surface hardness while preserving the ductility of the inner core.

Chemical Composition (Weight % per EN 10084)

Element	Carbon (C)	Silicon (Si)	Manganese (Mn)	Phosphorus (P)	Sulfur (S)*	Chromium (Cr)
Min	0.14%		0.60%			0.70%
Max	0.20%	0.40%	0.90%	0.025%	0.035%	1.00%

*Note: For improved machinability on automatic CNC turning centers, variants can be ordered with controlled sulfur content (e.g., 17CrS3, WNr 1.7014), specifying sulfur levels between 0.020% and 0.040%.

Mechanical Properties (Core Properties Post-Heat Treatment)

The mechanical goal of 17Cr3 is a highly differentiated microstructure: a hard, high-carbon martensitic case on the outside, and a ductile, lower-carbon ferrite-pearlite or bainitic core on the inside.

Typical Core Mechanical Properties (Tested on $\le$ 16 mm Cross Sections)

Property	Value
Tensile Strength ( $R_m$ )	700 -950 MPa
Yield Strength ( $R_{p0.2}$ )	490 MPa
Elongation ( $A_5$ )	11%
Impact Energy (ISO-V)	35 J
As-Delivered Hardness (Soft Annealed, +A)	174 HBW
As-Delivered Hardness (Treated for Machinability, +TH)	140 187 HBW
Final Surface Case Hardness	57 - 62 HRC

Global Cross-Reference Equivalents

When converting bills of materials (BOMs) from older national standards or sourcing raw bar stock internationally, 17Cr3 matches up with these equivalents:

Germany (DIN / WNr): 17Cr3 (1.7016) / 17CrS3 (1.7014)
USA (AISI/SAE): AISI 5015 / AISI 5115
Japan (JIS): SCr415 / SCr415H
United Kingdom (BS): 523M15
China (GB/T): 15Cr / 20Cr

Heat Treatment & Processing Roadmap

Forging / Hot Rolling: 1150C 850C (Air cool post-forming)
Normalizing: 870C - 900C
Soft Annealing (+A): 650- 700C (Slow furnace cooling to drop hardness below 174 HBW)
Carburizing Cycle: 880-980C (Typically targeted to a case depth between 0.5 mm and 1.5 mm depending on part geometry)
Core Refining Quench: 860C -890C (In oil or warm polymer baths)
Case Refining Quench: 780-C- 810C (Optimizes the surface layer hardness)
Low-Temperature Tempering: 150C -200C (Sustained for at least 1-2 hours to achieve dimensional stability and relieve internal stress without sacrificing wear resistance)

Primary Applications of 17Cr3 Round Bars & Rods

17Cr3 round bars are highly favored for light-to-medium-duty transmission parts and control mechanisms where extreme alloy choices (like high-nickel steels) are unnecessary and cost-prohibitive.

Transmission Components: Small gear wheels, pinion shafts, splined drives, and synchronous hubs.
Precision Steering Gear: Steering worms, steering knuckles, selector forks, and pivot pins.
General Machinery: Guide rollers, precision bushings, piston pins, cams, and structural link rods.
Fasteners: Moderate-strength case-hardened structural pins and wear bolts.

Weldability Constraints: Like all carburizing grades, 17Cr3 is not intended for structural welding. The carbon pickup in the case layer forms highly brittle zones under weld thermal cycles, creating high risks of immediate cold-cracking. Any essential welding must be carried out on the raw material prior to the carburization phase.

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