BS En ISO 4957 High Speed Tool Steel (DIN1.3344, Skh53)

• Type: Round
• Standard: ASTM, DIN
• Composition: Stainless Steel Scrap
• Special Use: Cold Heading Steel
• Application: Tool Steel Bar
• Size Range: 4-1000mm
• Model NO.: DIN1.3344, Skh53
• Similar Grades: DIN1.3344, Skh53
• Quality Standard: BS En ISO 4957
• MOQ: 1t
• Transport Package: Seaworthy Packing
• Specification: 1.3344
• Trademark: FUSHUN
• Origin: China
• HS Code: 7228600000
• Production Capacity: 500tons Per Month

Product Description

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.