1.2550 Tool Steel | 60WCrV7

1.2550 Tool Steel | 60WCrV7 Product Introduction

1.2550 Tool Steel

1.2550 steel is a high carbon, chromium, tungsten, tungsten and vanadium alloyed tool steel classified as an impact resistant rutile steel under the German W-Nr/DIN standard. Its typical chemical composition consists of carbon (0.55-0.65%), chromium (0.90-1.20%), tungsten (1.80-2.10%) and vanadium (0.10-0.20%), with high hardenability achieved through optimised carbide distribution, High toughness and hardness of 58-62 HRC after heat treatment are achieved through optimised carbide distribution, together with a low coefficient of thermal expansion (11.0×10-⁶/K at 20-100°C) and good thermal stability.

60WCrV7 Tool Steel

60WCrV7 steel is the equivalent grade of 1.2550 steel and is a high-alloyed, impact-resistant tool steel according to the German DIN 17350 standard. It has the same compositional range as 1.2550, a density of 7.93 g/cm³, a modulus of elasticity of 200 GPa, a hardness of 58-62 HRC after quenching (oil cooling at 860-950°C) and tempering, and high tensile strength (≥2100 MPa) with excellent fatigue resistance.

1.2550 Tool Steel | 60WCrV7 Product Types and Options

The table below shows the size range, surface condition and tolerance details for 1.2550,60WCrV7 Tool Steel:

Shape	Pocess	Size range	Surface	Tolerance
Flat Bar	Hot Rolled	Thickness: 10-400mm Width: 200-800mm Length: 3000-5800mm	Black; Sandblasted	Thickness :0-+2MM Width:0-+5MM/0-+10MM
	Hot Forged	Thickness: 50-500mm Width: 50-1500mm Length: 3000-5800mm	Black	Thickness:+2-+5MM Width:0-+5MM/0-+10MM
			Turned/Machined/Milled/Bright	Thickness :0-+2MM Width:0-+5MM/0-+10MM
Round Bar	Hot Rolled	Diameter:10-65mm Length:3000-5800mm	Black	0-+2MM
			Turned/Machined	0-+2MM
	Hot Forged	Diameter:70-700mm Length:3000-5800mm	Grinded	0-+5MM/+2-+5MM
			Turned/Machined/Milled/Bright	0-+2MM

1.2550 Tool Steel | 60WCrV7 Customized Options

1. Customized chemical composition: GB, DIN, ASTM, JIS and other standard grades can be produced. Chemical composition can be customized individually.
2. Customized specifications: round steel (diameter), plate (thickness, width) can be customized production.
3. Specialized packaging for long term storage or extreme transportation conditions: includes spraying black paint all around, wrapping plastic film, spraying anti-rust oil, and shipping in wooden crates.
4. Customized production based on samples or technical agreements.
5. 1.2550,60WCrV7 Cold Work Tool Steel Electroslag Remelting (ESR): premium option with higher purity and isotropic properties for critical applications.

1.2550 Tool Steel | 60WCrV7 Chemical Composition

Standard/Steel Grade		Chemical Composition(%)
		C	Si	Mn	Cr	W	V
DIN/W-Nr.	1.2550/60WCrV7	0.55~0.65	0.7~1.00	0.15~0.45	0.90~1.20	1.70~2.2	0.10~0.20

1.2550 Tool Steel | 60WCrV7 Heat Treatment Process

1.Annealing

Purpose: to eliminate internal stresses generated during forging or rolling, reduce hardness, improve cutting performance, and prepare for subsequent processing and heat treatment.
Process parameters:
Heating temperature: 800-850 ℃, holding time 2-4 hours, with the furnace cooling to below 500 ℃, and then air-cooled.
Hardness after annealing: ≤ 250 HBS.

2.Quenching

Purpose: to make the tool steel to obtain martensitic organization, improve hardness and wear resistance.
Process parameters:
Heating temperature: 1000-1050 ℃ (commonly used 1020-1040 ℃), holding time according to the size of the workpiece to determine, generally 30-60 minutes.
Cooling: oil cooling or air cooling (for small size or simple shape of the workpiece), large workpieces can be graded quenching (in the 260-300 ℃ salt bath cooling for a period of time and then air-cooled), in order to reduce the quenching stress, to prevent deformation and cracking.

3.Tempering

Purpose: to eliminate quenching stress, adjust the hardness and toughness, stable organization and size.
Process parameters:
low-temperature tempering: 150-250 ℃, insulation 2-3 hours, air-cooled, tempered hardness of 58-62HRC, for molds requiring high hardness and wear resistance.
Medium temperature tempering: 300-500 ℃, insulation 2-3 hours, air-cooled, tempered hardness of 50-58HRC, can improve the toughness, suitable for molds subject to impact load.
High-temperature tempering: 500 ℃ or more, insulation 2-3 hours, air-cooled, tempered hardness 45-50HRC, mainly for the need for higher toughness of the occasion.

4.Precautions

Heating process should control the rate of heating to avoid too rapid a rise in temperature leading to workpiece surface oxidation and decarburization. Protective atmosphere heating can be used or placed in the furnace charcoal and other anti-decarburization agent.
When quenching and cooling, choose the appropriate cooling medium and cooling method according to the shape and size of the workpiece to ensure the quenching effect while reducing the risk of deformation and cracking.
Tempering must be sufficient to ensure the elimination of internal stresses to avoid mold failure due to stress release during use. For large molds or workpieces with complex shapes, multiple tempering can be used.

1.2550 Tool Steel | 60WCrV7 Quality Inspection

1.Surface Condition Inspection

FCS factory has a very strict quality inspection team, we will carefully check the surface condition of each piece of tool steel to ensure that the steel surface is free from cracks, folds, knots, oxidized skin, pitting, scratches and other defects.

2.Chemical Composition Testing

To verify whether the content of alloying elements meets the standard requirements and to safeguard the basis of the mechanical properties of the material. We will let the staff use full-spectrum direct reading spectrometer to analyze multiple elements at the same time. Sampling needs to remove the surface oxidation layer, using a block specimen to stimulate the test.

3.Dimension and Tolerance Inspection

FCS factory will use professional measuring tools to inspect the dimensions and tolerances of the steel to ensure compliance with the customer's contract requirements. Corresponding gauges will be selected according to the dimensional accuracy requirements, including tape measure, high-precision vernier calipers (0.02mm), micrometers (0.001mm), and special inspection gauges. Inspection items cover: diameter, thickness, width, length, hole diameter, chamfering dimensions, etc., to ensure that the tolerances and dimensions meet the contract requirements.

4.Hardness test

Our FCS factory will use professional hardness tester to test the hardness of steel to ensure that it meets the customer's contract requirements.

5.Ultrasonic Testing

Ultrasonic Testing Standard (UT Test Standard) is: Sep 1921-84 Class3 D/d,E/e.
FCS factory uses ultrasonic testing equipment to detect macro defects inside the material (such as cracks, shrinkage holes, inclusions, white spots, etc.), and every piece of round steel and plate will be examined by a second flaw detection test before shipment to ensure that the quality is qualified before shipment.

6.Microstructure Inspection

(1) Metallographic Analysis

FCS factory will use metallographic analysis instrument to detect the microstructure state after heat treatment, including carbide distribution, martensite morphology, residual austenite content, etc.

 (2) Grain size rating

FCS factory will use the comparative method to determine the austenite grain size by comparing the microstructure of the specimen with the standard rating chart, to ensure that it meets the customer's requirements.

1.2550 Tool Steel | 60WCrV7 Technical Specifications

Property	1.2550 Tool Steel	60WCrV7 Tool Steel
Standard Designation	DIN 1.2550, AISI S1	DIN 1.2550, 60WCrV7
Density	7.85 g/cm³	7.85 g/cm³
Hardness (Annealed)	Max 250 HB	Max 250 HB
Hardness (Hardened)	56-58 HRC	60-63 HRC
Tensile Strength (Hardened)	1900-2200 MPa	2100-2400 MPa
Heat Treatment Temperature	Hardening: 830-870°C	Hardening: 820-860°C
Quenching Medium	Oil	Oil or air
Tempering Temperature	150-300°C	150-300°C
Machinability (Relative)	60% (relative to W.-Nr. 1.1730)	50% (relative to W.-Nr. 1.1730)

1.2550 Tool Steel | 60WCrV7 Product Applications

Key application scenarios

Cutting Tool Manufacturing

Our 1.2550 and 60WCrV7 tool steels excel in the production of industrial cutting tools where edge retention and wear resistance are critical. Manufacturers of industrial shears, guillotine blades and precision cutting tools benefit from 15-30% longer life than standard steels. Consistent heat treatment response ensures consistent hardness from batch to batch, reducing production fluctuations and quality issues. A metalworking supplier switched to 60WCrV7, reducing the frequency of insert changes by 40%.

Industrial moulds and punches

For cold work applications such as drop dies, forming dies and deep drawing dies, our tool steel combines wear resistance with toughness. Typical dimensional stability of ±0.10% during heat treatment ensures accuracy of critical components. 1.2550 is particularly suited to scenarios where impact resistance is required while preserving the cutting edge, with customer feedback of a 25% increase in maintenance cycle yield.

Woodworking Tools

High-end woodworking tool manufacturers choose 60WCrV7 for its excellent edge retention in industrial planers, speciality chisels and professional cutting tools. Even when cutting abrasive engineered wood, the material maintains a sharp edge for cleaner cutting and less maintenance. Shop tests have shown a 35 per cent increase in resharpening intervals compared to conventional tool steels.

Moulds for the plastics industry

When processing abrasive polymers and fibre-reinforced plastics, our tool steels extend the wear life of cutting, shearing and pelletising equipment. Uniform microstructure ensures consistent wear patterns, reducing the risk of accidental failure and material contamination. Plastics processors report more predictable maintenance schedules and less unplanned downtime.

Customised precision components

When applications require both wear resistance and precision, our tool steels are heat-treated for superior dimensional stability. Refined grain structure and controlled alloy composition reduce distortion during hardening for gauge blocks, measuring tools and high-precision industrial components where tolerances are critical to performance.

Industry-specific applications

1. Automotive: stamping dies, dressing tools, shearing equipment for high-volume production
2. Aerospace: precision cutting tools for special alloys and composites
3. Woodworking: industrial planer knives, special cutting tools, production equipment
4. Metalworking: shear blades, punches, forming dies for steel processing
5. Plastics: pelletiser blades, cutting dies, wear parts for extrusion equipment
6. Electronics manufacturing: precision cutting tools for PCB manufacturing and component moulding Cutting tools

1.2550 Tool Steel | 60WCrV7 Competitive Advantage Comparison

Characteristics	FCS Factory Tool Steel	Generic Competitor A	Generic Competitor B
Hardness After Heat Treatment	56-63 HRC	54-60 HRC	55-61 HRC
Edge Retention Index	9.0/10	7.5/10	8.0/10
Inclusion Rating	Excellent	Good	Average
Technical Support	Comprehensive application-specific guidance	Only basic data sheets	Limited consultation
Custom Dimensions	Wide range of available sizes	Limited options	Available with large minimum orders
Heat Treatment Guidance	Process-specific parameters	Generic recommendations	Basic guidelines
Certification Options	Multiple standards available	Only standard certification	Limited options

1.2550 Tool Steel | 60WCrV7 Customer Success Stories

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1.2550 Tool Steel | 60WCrV7 Pricing Structure Information

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1.2550 Tool Steel | 60WCrV7 Frequently Asked Questions

Q: What are the standard sizes that can be delivered?
A: Standing common sizes: hot rolled round steel φ10-65mm, hot forged round steel φ70-700mm; hot rolled plate thickness 8-45mm, width 50-1000mm; hot forged plate thickness is 50-500mm, hot forged plate width is 50-1500mm.

Q: What is the core difference between 1.2550 and 60WCrV7 tool steel?
A: Both are high-performance tool steels, but 1.2550 has superior toughness and impact resistance (56-58 HRC hardness) for shock load scenarios, while 60WCrV7 has superior wear resistance and edge retention (60-63 HRC hardness), making it the preferred choice for cutting tools and high wear applications.

Q: What is the typical dimensional change during heat treatment?
A: Typical variation under normative heat treatment is 0.08-0.12% for 1.2550 and 0.10-0.15% for 60WCrV7, depending on geometric complexity and heat treatment parameters.