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T: +86-0731-85185770
E: enquiry@qilumetal.com
E: enquiry@qilumetal.com
No. 18 Xiangfu Middle Road,Yuhua District, Changsha City
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| Quantity: | |
|---|---|
60WCrV8
Qilu
1: Steel equivalent
Country | China | ISO | Germany | USA |
Standard | GB/T 1299 | ISO 4957 | DIN 17350 | AISI/ASTM ASTM A681 |
Grade | 6CrW2Si | 60WCrV8 | 60WCrV7/1.2550 | S1 |
2: Chemical composition
Grade | C | Si | Mn | Cr | P | S | V | W | Mo |
60WCrV8/ 1.2550 | 0.55-0.65 | 0.70-1.00 | 0.15-0.45 | 0.90-1.20 | 0.030Max | 0.030Max | 0.10-0.20 | 1.70-2.20 | / |
| S1 | 0.40-0.55 | 0.15-1.20 | 0.10-0.40 | 1.00-1.80 | 0.030Max | 0.030Max | 0.15-0.30 | 1.50-3.00 | 0.50 Max |
| 6CrW2Si | 0.55-0.65 | 0.50-0.80 | 0.40 Max | 1.10-1.30 | 0.030Max | 0.030Max | / | 2.20-2.70 | / |
3: Surface hardness and hardenability
Heat Treatment | Hardness |
Annealed (+A) | HB229Max |
| Hardening and Tempering (+HT) | HRC58 Min |
| Cold-drawn condition | HB255Max |
| Quenched and tempred (+QT) | HRC28-32(Common Range) |
4: Supply size & Tolerance & Stock size
Product type | Size range | Length |
Hot rolled bar | Φ10-Φ190mm | 2000-5800mm |
Hot forged bar | Φ200-Φ600mm | 2000-5800mm |
Hot rolled plate/sheet | T:10-60mm; W:310-810mm | 2000-5800mm |
Hot forged plate | T:70-250mm; W:310-810mm | 2000-5800mm |
Hot Forged block | T: 260-500mm; W: 300-1000mm | 2000-5800mm |
Surface Finish | Turned | Milled | Grinding(Best) | Polished(Best) | Peeled(Best) | Black Forged | Black Rolled |
Tolerance | +0/+3mm | +0/+3mm | +0/+0.05mm | +0/+0.05mm | +0/+0.1mm | +0/+5mm | +0/+1mm |
Straighness | 1mm/1000mm max. | 3mm/1000mm max. | |||||
To ensure optimal performance for your application, we produce 1.2550 tool steel on a dedicated make-to-order basis. This approach guarantees fresh production and allows us to customize the process for your specific requirements. Tell us your needs, and let's get started.
5: Ultrasonic Test
EN10228-3 class III or Sep 1921-84 D/D
6：Steel making & Forging processing
1): Steel making process:
EF+LF+VD
EAF+LF+VD
EF+LF+VD+ESR
EAF+LF+VD+ESR
2): Forging processing:
Initial temperature: 1100-1150℃
Final temperature: 850℃
Cooling in the furnace or in the sand
7: Heat treatment
1): Annealed:
Heat 1.2550 steel to 780-800℃
After cooling in the furnace at a slow rate of ≤ 20 °C/hour to approximately 500 °C, it can be removed and allowed to continue cooling in air
2): Quenching and tempering:
Heat 1.2550 steel to 900-920℃ in the salt bath furnace
Quench in the oil
Temper steel at 170-190℃ in the furnace
Cooling in the air.
Above curve in figure is a rough guide to the tempering behaviour of steels.
8：Application
1.2550, as a tungsten-chromium-vanadium alloyed cold work tool steel, offers balanced properties and is renowned for its excellent wear resistance, high toughness, and outstanding compressive strength. Primary applications:
1. Cutting and Stamping Tools
Cutting Tools: Primarily used for manufacturing medium-to-low speed, high-load cutting tools such as twist drills, reamers, taps, milling cutters, and gear cutting tools.
Punching dies: Used for punching dies and dies for medium-thick plates or high-strength materials, especially in conditions prone to chipping or fracture
2. Forming dies
Cold heading dies and cold extrusion dies: Used for manufacturing die cavities and punches for bolts, nuts, rivets, etc.
Bending dies and drawing dies: Used for forming metal sheet processing
3. Measuring Tools and Wear-Resistant Components
Gauges, templates, and patterns: Precision measuring tools requiring high wear resistance and dimensional stability
Machine tool ways, slides, bushings: And other mechanical components demanding high wear resistance and impact resistance
1: Steel equivalent
Country | China | ISO | Germany | USA |
Standard | GB/T 1299 | ISO 4957 | DIN 17350 | AISI/ASTM ASTM A681 |
Grade | 6CrW2Si | 60WCrV8 | 60WCrV7/1.2550 | S1 |
2: Chemical composition
Grade | C | Si | Mn | Cr | P | S | V | W | Mo |
60WCrV8/ 1.2550 | 0.55-0.65 | 0.70-1.00 | 0.15-0.45 | 0.90-1.20 | 0.030Max | 0.030Max | 0.10-0.20 | 1.70-2.20 | / |
| S1 | 0.40-0.55 | 0.15-1.20 | 0.10-0.40 | 1.00-1.80 | 0.030Max | 0.030Max | 0.15-0.30 | 1.50-3.00 | 0.50 Max |
| 6CrW2Si | 0.55-0.65 | 0.50-0.80 | 0.40 Max | 1.10-1.30 | 0.030Max | 0.030Max | / | 2.20-2.70 | / |
3: Surface hardness and hardenability
Heat Treatment | Hardness |
Annealed (+A) | HB229Max |
| Hardening and Tempering (+HT) | HRC58 Min |
| Cold-drawn condition | HB255Max |
| Quenched and tempred (+QT) | HRC28-32(Common Range) |
4: Supply size & Tolerance & Stock size
Product type | Size range | Length |
Hot rolled bar | Φ10-Φ190mm | 2000-5800mm |
Hot forged bar | Φ200-Φ600mm | 2000-5800mm |
Hot rolled plate/sheet | T:10-60mm; W:310-810mm | 2000-5800mm |
Hot forged plate | T:70-250mm; W:310-810mm | 2000-5800mm |
Hot Forged block | T: 260-500mm; W: 300-1000mm | 2000-5800mm |
Surface Finish | Turned | Milled | Grinding(Best) | Polished(Best) | Peeled(Best) | Black Forged | Black Rolled |
Tolerance | +0/+3mm | +0/+3mm | +0/+0.05mm | +0/+0.05mm | +0/+0.1mm | +0/+5mm | +0/+1mm |
Straighness | 1mm/1000mm max. | 3mm/1000mm max. | |||||
To ensure optimal performance for your application, we produce 1.2550 tool steel on a dedicated make-to-order basis. This approach guarantees fresh production and allows us to customize the process for your specific requirements. Tell us your needs, and let's get started.
5: Ultrasonic Test
EN10228-3 class III or Sep 1921-84 D/D
6：Steel making & Forging processing
1): Steel making process:
EF+LF+VD
EAF+LF+VD
EF+LF+VD+ESR
EAF+LF+VD+ESR
2): Forging processing:
Initial temperature: 1100-1150℃
Final temperature: 850℃
Cooling in the furnace or in the sand
7: Heat treatment
1): Annealed:
Heat 1.2550 steel to 780-800℃
After cooling in the furnace at a slow rate of ≤ 20 °C/hour to approximately 500 °C, it can be removed and allowed to continue cooling in air
2): Quenching and tempering:
Heat 1.2550 steel to 900-920℃ in the salt bath furnace
Quench in the oil
Temper steel at 170-190℃ in the furnace
Cooling in the air.
Above curve in figure is a rough guide to the tempering behaviour of steels.
8：Application
1.2550, as a tungsten-chromium-vanadium alloyed cold work tool steel, offers balanced properties and is renowned for its excellent wear resistance, high toughness, and outstanding compressive strength. Primary applications:
1. Cutting and Stamping Tools
Cutting Tools: Primarily used for manufacturing medium-to-low speed, high-load cutting tools such as twist drills, reamers, taps, milling cutters, and gear cutting tools.
Punching dies: Used for punching dies and dies for medium-thick plates or high-strength materials, especially in conditions prone to chipping or fracture
2. Forming dies
Cold heading dies and cold extrusion dies: Used for manufacturing die cavities and punches for bolts, nuts, rivets, etc.
Bending dies and drawing dies: Used for forming metal sheet processing
3. Measuring Tools and Wear-Resistant Components
Gauges, templates, and patterns: Precision measuring tools requiring high wear resistance and dimensional stability
Machine tool ways, slides, bushings: And other mechanical components demanding high wear resistance and impact resistance
