English 
T: +86-0731-85185770
E: enquiry@qilumetal.com
E: enquiry@qilumetal.com
No. 18 Xiangfu Middle Road,Yuhua District, Changsha City
 |
| Quantity: | |
|---|---|
HS6-6-2
Qilu
Country | ISO | Germany | Japan |
Standard | ISO 4957 | DIN 10027-2 | JIS G4403 |
Grade | HS6-6-2 | 1.3350 | SKH52 |
2: Chemical composition
Grade | C | Si | Mn | Cr | P | S | Mo | V | W |
| HS6-6-2/1.3350 | 1.00-1.10 | 0.45 Max | 0.40 Max | 3.80-4.50 | 0.030 Max | 0.030 Max | 5.50-6.50 | 2.30-2.60 | 5.90-6.70 |
| SKH52 | 1.00-1.10 | 0.45 Max | 0.40 Max | 3.80-4.50 | 0.030 Max | 0.030 Max | 5.50-6.50 | 2.30-2.60 | 5.90-6.70 |
3: Surface hardness and hardenability
Heat Treatment | Hardness |
| Annealed (+A) | HB262Max |
| Hardening and Tempering (+HT) | HRC64 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 1.3350 high speed 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: 950-1120℃
Final temperature: 900℃
Cooling in the furnace or in the sand
7: Heat treatment
1): Annealed:
Heat 1.3350 steel to 850-880℃
Slowly cool the furnace (recommended cooling rate ≤ 30°C/hour) to around 500°C, then remove it from the furnace and air cool to room temperature
2): Quenching and tempering:
Heat 1.3350 steel to 1190-1210℃ in the salt bath furnace
Quench in the oil
Temper steel at 550-570℃ in the furnace
Cooling in the air.
Above curve in figure is a rough guide to the tempering behaviour of steels.
8：Application
1.3350 steel, as a general-purpose high-speed steel with balanced performance, has the core advantage of maintaining a sharp cutting edge at high cutting speeds, making it suitable for manufacturing a variety of cutting tools. The following are their main application areas and specific uses:
1. Drilling Tools
Twist Drills: General-purpose drills used for machining carbon steel, alloy steel, cast iron, etc., especially in applications requiring high production efficiency and durability
Step Drills, Deep Hole Drills: Used to manufacture multi-diameter drills with complex structures and drills with a certain length-to-diameter ratio
2. Milling Tools
End Mills, Front End Mills: Used for milling planes, stepped surfaces, and grooves
Saw Blade End Mills, Slotting End Mills: Used for cutting and grooving
Form Mills: Milling cutters with specific profiles used for machining shaped surfaces
3. Threading Tools
Taps: Used for tapping internal threads; a common material for manufacturing hand and machine taps
Dies: Used for machining external threads
4. Gear Machining Tools
Hobs, Gear Shapers: Used for machining spur and helical cylindrical gears, suitable for small to medium batch production or cost-sensitive production
5. Broaching and Reaming Tools
Broaches: Used for machining various internal keyways, splines, and irregular holes
Reamers: Used for finishing drilled holes to achieve high-precision hole diameter and surface finish
Country | ISO | Germany | Japan |
Standard | ISO 4957 | DIN 10027-2 | JIS G4403 |
Grade | HS6-6-2 | 1.3350 | SKH52 |
2: Chemical composition
Grade | C | Si | Mn | Cr | P | S | Mo | V | W |
| HS6-6-2/1.3350 | 1.00-1.10 | 0.45 Max | 0.40 Max | 3.80-4.50 | 0.030 Max | 0.030 Max | 5.50-6.50 | 2.30-2.60 | 5.90-6.70 |
| SKH52 | 1.00-1.10 | 0.45 Max | 0.40 Max | 3.80-4.50 | 0.030 Max | 0.030 Max | 5.50-6.50 | 2.30-2.60 | 5.90-6.70 |
3: Surface hardness and hardenability
Heat Treatment | Hardness |
| Annealed (+A) | HB262Max |
| Hardening and Tempering (+HT) | HRC64 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 1.3350 high speed 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: 950-1120℃
Final temperature: 900℃
Cooling in the furnace or in the sand
7: Heat treatment
1): Annealed:
Heat 1.3350 steel to 850-880℃
Slowly cool the furnace (recommended cooling rate ≤ 30°C/hour) to around 500°C, then remove it from the furnace and air cool to room temperature
2): Quenching and tempering:
Heat 1.3350 steel to 1190-1210℃ in the salt bath furnace
Quench in the oil
Temper steel at 550-570℃ in the furnace
Cooling in the air.
Above curve in figure is a rough guide to the tempering behaviour of steels.
8：Application
1.3350 steel, as a general-purpose high-speed steel with balanced performance, has the core advantage of maintaining a sharp cutting edge at high cutting speeds, making it suitable for manufacturing a variety of cutting tools. The following are their main application areas and specific uses:
1. Drilling Tools
Twist Drills: General-purpose drills used for machining carbon steel, alloy steel, cast iron, etc., especially in applications requiring high production efficiency and durability
Step Drills, Deep Hole Drills: Used to manufacture multi-diameter drills with complex structures and drills with a certain length-to-diameter ratio
2. Milling Tools
End Mills, Front End Mills: Used for milling planes, stepped surfaces, and grooves
Saw Blade End Mills, Slotting End Mills: Used for cutting and grooving
Form Mills: Milling cutters with specific profiles used for machining shaped surfaces
3. Threading Tools
Taps: Used for tapping internal threads; a common material for manufacturing hand and machine taps
Dies: Used for machining external threads
4. Gear Machining Tools
Hobs, Gear Shapers: Used for machining spur and helical cylindrical gears, suitable for small to medium batch production or cost-sensitive production
5. Broaching and Reaming Tools
Broaches: Used for machining various internal keyways, splines, and irregular holes
Reamers: Used for finishing drilled holes to achieve high-precision hole diameter and surface finish
