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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: | |
|---|---|
50WCrV8
Qilu
1: Steel equivalent
Country | ISO | Germany |
Standard | ISO 4957 | DIN 17350 |
Grade | 50WCrV8 | 1.2549 |
2: Chemical composition
Grade | C | Si | Mn | Cr | P | S | V | W |
| 50WCrV8/1.2549 | 0.45-0.55 | 0.70-1.00 | 0.15-0.45 | 0.90-1.20 | 0.030Max | 0.030Max | 0.10-0.20 | 1.70-2.20 |
3: Surface hardness and hardenability
Heat Treatment | Hardness |
Annealed (+A) | HB229Max |
| Hardening and Tempering (+HT) | HRC56 Min |
| 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 1.2549 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: 1100-1130℃
Final temperature: 900℃
Cooling in the furnace or in the sand
7: Heat treatment
1): Annealed:
Heat 1.2549 steel to 770-800℃
Cool the furnace slowly at a rate of ≤ 10 °C/hour to approximately 650 °C
2): Quenching and tempering:
Heat 1.2549 steel to 910-930℃ 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
1.2549, as an alloy tool steel, boasts excellent comprehensive properties and finds extensive applications across industrial sectors. Below are its typical specific application areas and uses:
1. Cutting Tools
Gear cutting tools: such as hobs, broaches, and shaving tools
Reamers: for machining internal splines, keyways, etc.
Precision tools requiring high wear resistance and toughness: reamers, taps, drills, etc.
2. Cold Work Dies
Punching dies: Especially for thick plate blanking and progressive die punches/dies
Forming dies: Such as bending dies, drawing dies (particularly suitable for high-strength sheet metal)
Imprinting dies: For fine surface embossing on coins, badges, jewelry, etc.
Cold heading dies and extrusion dies: For manufacturing standard parts like screws and bolts
3. Measuring Tools and Wear-Resistant Components
Precision measuring tools such as gauges, gauge blocks, templates
Machine tool ways, wear-resistant liners, spindles, etc.
4. Plastic Molds
For producing plastics with high abrasion resistance (e.g., engineering plastics containing glass fiber fillers), 1.2549 exhibits superior wear resistance compared to standard P20 mold steel. It is suitable for manufacturing: cores, cavities, wear-resistant inserts, guide bushings, slides, etc.
1: Steel equivalent
Country | ISO | Germany |
Standard | ISO 4957 | DIN 17350 |
Grade | 50WCrV8 | 1.2549 |
2: Chemical composition
Grade | C | Si | Mn | Cr | P | S | V | W |
| 50WCrV8/1.2549 | 0.45-0.55 | 0.70-1.00 | 0.15-0.45 | 0.90-1.20 | 0.030Max | 0.030Max | 0.10-0.20 | 1.70-2.20 |
3: Surface hardness and hardenability
Heat Treatment | Hardness |
Annealed (+A) | HB229Max |
| Hardening and Tempering (+HT) | HRC56 Min |
| 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 1.2549 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: 1100-1130℃
Final temperature: 900℃
Cooling in the furnace or in the sand
7: Heat treatment
1): Annealed:
Heat 1.2549 steel to 770-800℃
Cool the furnace slowly at a rate of ≤ 10 °C/hour to approximately 650 °C
2): Quenching and tempering:
Heat 1.2549 steel to 910-930℃ 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
1.2549, as an alloy tool steel, boasts excellent comprehensive properties and finds extensive applications across industrial sectors. Below are its typical specific application areas and uses:
1. Cutting Tools
Gear cutting tools: such as hobs, broaches, and shaving tools
Reamers: for machining internal splines, keyways, etc.
Precision tools requiring high wear resistance and toughness: reamers, taps, drills, etc.
2. Cold Work Dies
Punching dies: Especially for thick plate blanking and progressive die punches/dies
Forming dies: Such as bending dies, drawing dies (particularly suitable for high-strength sheet metal)
Imprinting dies: For fine surface embossing on coins, badges, jewelry, etc.
Cold heading dies and extrusion dies: For manufacturing standard parts like screws and bolts
3. Measuring Tools and Wear-Resistant Components
Precision measuring tools such as gauges, gauge blocks, templates
Machine tool ways, wear-resistant liners, spindles, etc.
4. Plastic Molds
For producing plastics with high abrasion resistance (e.g., engineering plastics containing glass fiber fillers), 1.2549 exhibits superior wear resistance compared to standard P20 mold steel. It is suitable for manufacturing: cores, cavities, wear-resistant inserts, guide bushings, slides, etc.
