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SKH4 BT5 1.3265 T5 High Speed Steel Round Bar

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  • T5

  • Qilu

Product Description

SKH4 BT5 1.3265 T5 High Speed Steel Round Bar


1: AISI T5 Steel Introduction

    AISI T5 tool steel is one of tungsten type high speed tool steel, which belongs to ASTM A600specification, the standard for high speed tool steel materials. T4 tool steel is similar to T1 Tool Steel materials, but with 4.25~5.75% cobalt added to increase heat resistance. The red hardness of T4 steel and the high temperature hardness is a little higher than T1 tool steel. AISI T4 tool steel is a deep hardening alloy capable of Rockwell C 64 hardness.

                        83 90

T5 steel Stock in warehouse


2: A600 Quality Standard

ASTM-A600-1992-ENG Standard-Specification-for-High-Speed-Tool-Steel.pdf


3: AISI T5 Steel Equivalent

Country USA German Japan
Standard ASTM A600 DIN EN ISO 4957 JIS G4403
Grade T5/T12005 1.3265/HS18-1-2-10 SKH4


4: AISI T5 Steel Chemical Composition

Grade C Si Mn P S Cr Mo V W Co
T5 0.75-0.85 0.2-0.4 0.2-0.4 0.03 0.03 3.75-5 0.5-1.25 1.8-2.4 17.5-19 7-9.5
1.3265 0.72-0.8 0.45 0.4 0.03 0.03 3.8-4.5 0.5-0.8 1.4-1.7 17.5-18.5 9-10
SKH4 0.73-0.83 0.45 0.4 0.03 0.03 3.8-4.5 / 1.0-1.5 17-19 9-11
BT5 0.75-0.85 0.4 0.4 0.035 0.035 3.75-4.5 / 1.75-2.05 18.5-19.5 9-10


5: AISI T5 Steel Mechanical Properties

    The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.


6: AISI T5 Steel Overviews

Size Round Dia 2-300mm
Plate/Flat/Block Thickness
2mm-20mm
Width
10mm-100mm
Heat treatment Normalized ; Annealed ; Quenched ; Tempered
Surface condition Black; Peeled; Polished; Machined; Grinded; Turned; Milled
Delivery condition Forged; Hot rolled; Cold drawn
Test Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc.
Payment terms T/T;L/C;/Money gram/ Paypal
Trade terms FOB; CIF; C&F; etc..
Delivery time 30-45 days


7: AISI T5 Steel Application

    T5 are used for Drills, Milling Cutters, Thread Cutting Tools, Knurling Tools, Cold extrusion punches, Broaches etc.


8: AISI T5 Steel Heat Treatment

   Annealing of T-5 Steel

   Annealing is recommended after hot working and before re hardening

   Heat the temperature to 850°C at a rate of no more than 220°C per hour.

   Hold at the temperature for one hour per inch of thickness(at least two hours).

   Cool slowly in the furnace or in air to ambient temperature.

   The resultant hardness achieved should be Max 255HB or lower.

   Stress Relieving

   Stress relieving to remove machining stresses should be carried out by heating to 600-650oC, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.

   Hardening of Steel T5

   Preheat T5 tool steel slowly to the temperature of 820-870°C.

   Heat to the final hardening temperature of 1250°C and make sure the material must be heated through.

   Quench in the warm oil,and then complete the quench in air.(care must be taken at this step)

   Tempering of T-5 Steel

   Tempering temperature: 550-590oC.


9: T5 Steel Tolerance


Diameter(mm)

Tolerance

Forged Steel Round Bar

80-600

Black Surface:0~+5

Rough Machined or Turned:0~+3

650-1200

Black Surface:0~+15

Rough Machined or Turned:0~+3

Hot Rolled Steel Round Bar

16-310

Black Surface:0~+1

Peeled:H11

Cold Drawn Steel Round Bar

6-100

Black Surface:H11

Peeled:H11


10: Delivery Condition
For hot forged bar, usually the delivery condition is hot forged, annealed rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, annealed, Black surface.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.


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