DIN 1.2419 Cold Work Tool Steel Bar
Type:Round bar
Delivery condition: Annealed black surface/Turned bright surface/Q+T
Products Description
1.2419 steel is the most commonly used high carbon alloy tool steel for mold making.1.2419 steel has high hardenability. As tungsten forms tungsten carbide, this steel has more excess carbide, higher hardness and wear resistance than chromium steel and 1.2607 Steel. In addition, tungsten also helps to preserve fine grains, which makes the steel obtain better toughness. Therefore, the cutting tool made of CrWMn steel has less edge breaking phenomenon and can better maintain the shape and size of the edge.
1.2419 Steel Heat Treatment
1.2419 Steel Characteristics:
1.2419 steel is a widely used cold work die steel, known as "unchangeable steel", but it is sensitive to form network carbides. It is mainly used for cutting tools (such as broaches, long taps, long reamers, special milling cutters) and measuring tools (such as dies, block gauges, gauges, sample columns, sample sleeves) with small deformation and complex shape when quenching, as well as high-precision cold stamping dies with small section and complex shape.
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Products parameters
| GB | CrWMn |
| ASTM | SKS31 |
| DIN | 1.2419 |
1.2419 Chemical Composition
| Standard | Grade | C | Si | Mn | P/S | Cr | W |
| GB | CrWMn | 1.00-1.10 | 0.10-0.40 | 0.80-1.10 | 0.030(MAX) | 0.90-1.10 | 1.00-1.30 |
1.2419 Steel Properties
|
Size range : |
Diameter (mm) |
Thickness (mm) |
Width (mm) |
|
8 - 450 |
6 - 350 |
Max 810 |
|
Delivery condition : |
Soft annealed to max. 240 HB |
Soft Annealing
Heat to 1050-850°C,cool slowly in furnace. This will produce a maximum Brinell hardness of 230.
Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to approx 750°C,holding for 1-2 hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Hardening
Harden from a temperature of 1050-850°C followed by oil quenching or warm bath quenching 150-250°C. Hardness after quenching is 64 HRC.
Tempering
Tempering temperature: see the table below.
Tempering Temperature (°C)VS. Hardness (HRC)
|
100°C |
200°C |
300°C |
400°C |
500°C |
550°C |
|
64 |
61 |
58 |
54 |
- |
- |
Product Picture
Our factory
Steel Making
Ingot Production
Forged Bars
Machinary
Characteristics of 1.2419 steel:
1.2419 Available shapes
Black bar/flat bar/square bar
Bright - peeling+polishing/centerless grinding/peeling+sliding grinding
Packing & Delivery
Packing & Delivery
-
The inner size of container is below:
-- 20ft GP: 5.8m(length) x 2.13m(width) x 2.18m(high)
-- 40ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high)
-- 40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high)
Our Service
1. Competitive price and quality from our own factory .
2. Best service with 24 hour`s reply .
3. Flexible payment with T/T,L/C , etc .
4. Smooth production ability(1000tons/month).
5. Quick delivery and standard exporting package.
Relevant Steel Specifications of AISI T4 High Speed Tool Steels
| Country | USA | German | Japan |
| Standard | ASTM A600 | DIN EN ISO 4957 | JIS G4403 |
| Grades | T4/T12004 | S 18-1-2-5/1.3255 | SKH3 |
AISI T4 Tool Steel and Equivalents’ Chemical Composition
| ASTM A600 | C | Mn | P | S | Si | Cr | V | W | Mo | Co | ||||||||
| T4 | 0.70 | 0.80 | 0.10 | 0.40 | 0.03 | 0.03 | 0.20 | 0.40 | 3.75 | 4.50 | 0.80 | 1.20 | 17.50 | 19.00 | 0.40 | 1.00 | 4.25 | 5.75 |
| DIN ISO 4957 | C | Mn | P | S | Si | Cr | V | W | Mo | Co | ||||||||
| S 18-1-2-5/1.3255 | 0.75 | 0.83 | … | 0.40 | 0.03 | 0.03 | … | 0.45 | 3.80 | 4.50 | 0.80 | 1.20 | 17.50 | 18.50 | 0.50 | 0.80 | 4.50 | 5.50 |
| JIS G4403 | C | Mn | P | S | Si | Cr | V | W | Mo | Co | ||||||||
| SKH3 | 0.73 | 0.83 | … | 0.40 | 0.03 | 0.03 | … | 0.45 | 3.80 | 4.50 | 0.80 | 1.20 | 17.00 | 19.00 | … | … | 4.50 | 5.50 |
Mechanical Properties of T-4 Steel
| Properties | Metric | Imperial |
| Modulus of elasticity | 190-210 GPa | 27557-30458 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
Thermal Properties of T4 Tool Steels
| Properties | Metric | Imperial |
| Thermal expansion co-efficient | 11.9 µm/m°C | 6.6 µin/in°F |
Forging of ASTM T4 Tool Steel Materials
Forging of T4 steel can be carried out from 850 to 1120°C (1775 to 2100°F).
Preheat T4 steel material uniformly and slowly to 860-880°C.
Increase the forging temperature up to 1050-1120°C.
T4 hss tool steel should be cooled very slowly after forging.
AISI/ASTM T4 Tool Steel Heat Treatment and Properties
Hardening:
Harden T4 high speed tool steel from a temperature of 1260-1290oC followed by oil, air quenching or warm bath at 550oC. Hardness after quenching is 63-66 HRC.
Annealing:
T4 steel should be annealed after hot working. Increase the temperature of T4 high speed steel to 860°C(Max220°C per hour). Hold at the temperature and then cool slowly with the furnace. The annealed hardness achieved should be below HB255.
Tempering:
Tempering temperature: 2x 560-580oC. Hardness after tempering is 64-65 HRC.
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