1.2358 Steel Equivalent Properties
Type:Round bar
Delivery condition: Annealed black surface/Turned bright surface/Q+T
Products Description
Chrome-molybdenum-vanadium steel is characterized by high toughness and good resistance to the wear. Further the steel has good hardenability and good dimensional stability after hardening and tempering. The steel can also be well welded and well polished. The toughness of quality 1.2358 steel reaches higher values than by other steels for cold work (1.2842, 1.2363, 1.2080, 1.2379, 1.2436). An excellent combination of toughness and resistance to the wear enables the usage of quality 1.2358 steel also for different pressing and injection applications during plastics processing.
1.2358 Material Characteristics
- High toughness
- The hardenability to the core is very good
- Suitable for surface hardening (laser, induction, flame)
- Easy to weld
- Can be hardened to 58 Hrc,
1.2358 Tool Steel Applications
- Automobile body mold
- Plastering, wire drawing moulds and tools
- Cut and stretch segments in the segmented mold
- Complex punch, scissors blade, shear blade
- Plastic injection mold.
.
Products parameters
|
Standards |
DIN |
AISI |
JIS |
ГОСТ |
|
X60CrMoV18-5 |
1.2358 |
|
|
|
1.2358 Chemical Composition
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
V |
|
0.58-0.62 |
0.20-0.50 |
0.70-0.90 |
≤0.030 |
≤0.030 |
4.30-4.70 |
0.40-0.60 |
0.20-0.30 |
1.2358 Steel Properties
|
Size range : |
Diameter (mm) |
Thickness (mm) |
Width (mm) |
|
8 - 450 |
6 - 350 |
Max 810 |
|
Delivery condition : |
Soft annealed to max. 240 HB |
Heat Treatment:
|
Soft annealing |
Temperature(°C) |
Cooling |
Hardness |
|
820 - 860 |
furnace |
max. 240 HB |
|
Forging |
Temperature(°C) |
Cooling |
|
|
850 - 1050 |
furnace |
|
Hardening |
Temperature(°C) |
Cooling |
Tempering |
|
|
950 - 970 |
oil or air or hot bath |
see tempering diagram usually 180°C |
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirement
Product Picture
Our factory
Steel Making
Ingot Production
Forged Bars
Machinary
Characteristics of 1.2358 tool steel:
1.2358 steel is widly used for making cold work and for molds for plastics. In case of using for cold work we can talk mainly about these applications: cutting and mechanical working (also materials of bigger thicknesses), deep drawing, punching, rolling, production of shear blades, more complicated tools for cold work. In the area of molds for plastics the steel can be used e.g. for molds for large series, molds for plastics with additives, tools for plastics stamping etc.
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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