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105V
Qilu
105V / 1.2834 is a widely used cold work tool steel conforming to the German standard DIN EN ISO 4957. It is renowned for its high wear resistance, good toughness, and sufficient compressive strength. Due to its versatile properties and excellent machinability, many countries have steel grades equivalent to DIN 1.2834. For example, SKS43 in the Japanese standard JIS G4404.
1.2834 steel contains manganese, chromium, and tungsten, which act as strengthening elements. The addition of vanadium helps refine the grain structure, further enhancing wear resistance and toughness.
1: Steel equivalent
Country | ISO | Germany | Japan |
Standard | ISO 4957 | DIN 17350 | JIS G4404 |
Grade | 105V | 1.2834 | SKS43 |
2: Chemical composition
Grade | C | Si | Mn | Cr | P | S | V |
| 105V/1.2834 | 1.00-1.10 | 0.10-0.30 | 0.10-0.40 | / | 0.030Max | 0.030Max | 0.10-0.20 |
| SKS43 | 1.00-1.10 | 0.10-0.30 | 0.10-0.40 | 0.20Max | 0.030Max | 0.030Max | 0.10-0.20 |
3: Surface hardness and hardenability
Heat Treatment | Hardness |
Annealed (+A) | HB212Max |
| Hardening and Tempering (+HT) | HRC61 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 1.2834 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: 1050-1100℃
Final temperature: 800-850℃
Cooling in the furnace or in the sand
7: Heat treatment
1): Annealed:
Heat 1.2834 steel to 770-800℃
Slowly Cooling in the furnace
2): Quenching and tempering:
Heat 1.2834 steel to 780-800℃ in the salt bath furnace
Quench in the water
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
1.2834 is a versatile oil-hardening or air-hardening cold-work tool steel, whose core application lies in its excellent balance of wear resistance and toughness. Primary application areas:
1. Cold-work dies
Punching dies: Punches, dies, and liners for punching thin to medium-thick plates, particularly suitable for processing low-carbon steel, non-ferrous metals (e.g., copper, aluminum) and their alloys
Forming dies: Used for bending, flanging, shallow drawing, and other forming processes
Imprinting dies: Used for coin, badge, jewelry, and other applications requiring high surface quality and dimensional accuracy
Wire drawing dies: Used for drawing metal wire
Critical components in progressive and compound dies
2. Cutting Tools and Measuring Instruments
Cutting tools: Suitable for manufacturing low-speed, small-feed cutting tools like reamers, taps, and thread rolling dies
Measuring instruments: Used to produce gauges, plug gauges, templates, and other measuring tools requiring high wear resistance and dimensional stability
3. Other Fixtures and Tooling
Wear-resistant liners, guide rails, slides, and other mechanical components requiring high wear resistance
105V / 1.2834 is a widely used cold work tool steel conforming to the German standard DIN EN ISO 4957. It is renowned for its high wear resistance, good toughness, and sufficient compressive strength. Due to its versatile properties and excellent machinability, many countries have steel grades equivalent to DIN 1.2834. For example, SKS43 in the Japanese standard JIS G4404.
1.2834 steel contains manganese, chromium, and tungsten, which act as strengthening elements. The addition of vanadium helps refine the grain structure, further enhancing wear resistance and toughness.
1: Steel equivalent
Country | ISO | Germany | Japan |
Standard | ISO 4957 | DIN 17350 | JIS G4404 |
Grade | 105V | 1.2834 | SKS43 |
2: Chemical composition
Grade | C | Si | Mn | Cr | P | S | V |
| 105V/1.2834 | 1.00-1.10 | 0.10-0.30 | 0.10-0.40 | / | 0.030Max | 0.030Max | 0.10-0.20 |
| SKS43 | 1.00-1.10 | 0.10-0.30 | 0.10-0.40 | 0.20Max | 0.030Max | 0.030Max | 0.10-0.20 |
3: Surface hardness and hardenability
Heat Treatment | Hardness |
Annealed (+A) | HB212Max |
| Hardening and Tempering (+HT) | HRC61 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 1.2834 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: 1050-1100℃
Final temperature: 800-850℃
Cooling in the furnace or in the sand
7: Heat treatment
1): Annealed:
Heat 1.2834 steel to 770-800℃
Slowly Cooling in the furnace
2): Quenching and tempering:
Heat 1.2834 steel to 780-800℃ in the salt bath furnace
Quench in the water
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
1.2834 is a versatile oil-hardening or air-hardening cold-work tool steel, whose core application lies in its excellent balance of wear resistance and toughness. Primary application areas:
1. Cold-work dies
Punching dies: Punches, dies, and liners for punching thin to medium-thick plates, particularly suitable for processing low-carbon steel, non-ferrous metals (e.g., copper, aluminum) and their alloys
Forming dies: Used for bending, flanging, shallow drawing, and other forming processes
Imprinting dies: Used for coin, badge, jewelry, and other applications requiring high surface quality and dimensional accuracy
Wire drawing dies: Used for drawing metal wire
Critical components in progressive and compound dies
2. Cutting Tools and Measuring Instruments
Cutting tools: Suitable for manufacturing low-speed, small-feed cutting tools like reamers, taps, and thread rolling dies
Measuring instruments: Used to produce gauges, plug gauges, templates, and other measuring tools requiring high wear resistance and dimensional stability
3. Other Fixtures and Tooling
Wear-resistant liners, guide rails, slides, and other mechanical components requiring high wear resistance