DIN1.3344 SKH53 High Speed Tool Steel
Similar Grade: DIN1.3344, SKH53
Shape: Round, Flat, Square.
Size range:
Steel-making
Shape |
Round |
Flat |
Square |
| Thickness |
Width |
Rolling |
12-130mm |
4-150mm |
100-900mm |
-
|
Forging |
50-1000mm |
70-800mm |
300-2000mm |
70-1000mm |
Steel-making Condition: EF, EF/EAF+LF+VD, EF/EAF+ESR
Delivery Condition:
Annealed , Quenched + Tempered
Surface Condition:
Black, Grinded, Peeled, Rough turned, Polished
Features:
1.Competitive price
2.Immediate delivery
3.Premium quality
4.Reliable service
5.MOQ: 1 Ton
| Packing details |
In seaworthy packing, as your requirement. |
| Delivery details |
within 30-50 days |
Chemical Composition:
| Grade |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
V |
W |
| 1.3344 |
1.15-1.25 |
0.45 max |
0.40 max |
0.030max |
0.030max |
3.80- 4.50 |
4.70-5.20 |
2.70-3.20 |
5.90- 6.70 |
Heat Treatment:
Soft Annealing:
Heat to 850-990oC, cool slowly. This will produce a maximum Brinell hardness of 240-300.
Stress Relieving:
Stress relieving to remove machining stresses should be carried out by heating to 650oC, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Hardening;
Heat up to 450-500oC, then preheat to 850-900oC. Harden from a temperature of 1140-1180oC followed by inert gas quenching or warm bath 550oC. Hardness after quenching is min. 64 HRC.
Tempering:
Tempering temperature: Min. 3 x 1.5 hour at 560oC.
Hardening Temperature (oC) vs. Hardness (HRC)
| 1000oC |
1040oC |
1080oC |
1120oC |
1140oC |
1160oC |
1180oC |
| 57 |
59 |
61 |
63 |
64 |
65 |
65.5 |
Mechnical Property:
| UT Class |
| According to Standard of SEP 1921/84,100% Volume, Level C/c, D/d or E/e |
Applications:
Milling cutters, broach needles, cutting and punching, tools, dies, working rolls for cluster rolling stand.
Product Description:
High speed steel is a premium cobalt high speed steel with a chemical composition designed for high hardness and superior hot hardness. These properties make the steel an excellent choice for machining high-strength and pre-hardened steels, high-hardness alloys, and the difficult-to-machine, nonferrous super alloys used in the aerospace, oil, and power generation industries.
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