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T5 Steel | AISI T5 | 1.3265 | SKH4

WALDUN is one of the best T5 steel manufacturers and suppliers. Can supply in round bar,square bar,flat bar,plate,sheet and wire. T5 Steel is one of tungsten type high speed tool steel according to ASTM/A600 standard. Compared with T4 steel,it has higher cobalt with 8%,which makes higher temperature performance and better toughness.It also has high abrasion resistance and good cutting performance.The surface hardness can reach 68-70HRC after quenched.

T5-high-speed-steel

T5 Steel Supply Form & Size & Tolerance

Round bar
Diameter 1-16mm 10-50mm 50-180mm 180-300mm
Process Cold Drawn Hot Rolled Hot Forged Free Forging
Flat bar
Thickness 1-2.5mm 1.5-20mm 20-300mm
Width Max 800mm Max 800mm Max 800mm
Process Cold Drawn Hot Rolled Hot Forged

Remark:Tolerance can be customized as per requests

T5 Steel Chemical Composition

Standard Grade C Si Mn P S Cr Mo V w Co
ASTM A600 T5 0.75-0.85 0.20-0.40 0.20-0.40 0.03 0.03 3.75-5.00 0.50-1.25 1.80-2.40 17.5-19.0 7.00-9.50
DIN ISO 4957 1.3265 0.72-0.80 0.45 0.4 0.03 0.03 3.80-4.50 0.50-0.80 1.40-1.70 17.5-18.50 9.00-10.00
GB/T 9943 W18Cr4V2Co8 0.75-0.85 0.20-0.40 0.20-0.40 0.03 0.03 3.75-5.00 0.50-1.25 1.80-2.40 17.50-19.00 7.00-9.50
JIS G4403 SKH4 0.73-0.83 0.45 0.4 0.03 0.03 3.80-4.50 1.00-1.50 17.00-19.00 9.00-11.00

T5 Steel Physical Property

Density ,g/cm3 8.75
Specific heat ,J/kg.K 42
Thermal conductivity,W/mK 34
Modulus of elasticity,kN/mm2 424
Thermal expansion,20-100 ºC,untreated 11.2 x 10^ -6 /ºC

T5 Steel Mechanical Property

Hardness, Rockwell C (Quenched at 1277°C ,Tempered at 552°C) 63-65 HRC
Poisson’s ratio 0.27-0.30
Elastic modulus 190-210 GPa

T5 Steel Forging

Pre heat the AISI T5 with two steps.First,heat slowly and uniformly to 650-750°C with a rate not exceeding 220°C per hour,second,heat more quickly to the forging temperature of 1000-1150°C.Re-heating is necessary when temperature below 950°C. Slow cooling in furnace after forging.

T5 Steel Annealing

Annealing must be performed after hot working and before re-hardening.Heat the temperature to 820 to 870°C with a rate not exceeding 220°C per hour.Controlled slow cooling in furnace at 10 to 20°C per hour to approximately 550°C, followed by cooling in still air. Hardness after annealing 285Brinell, maximum.

T5 Steel Stress Relieving

It is recommended to stress relieve after machining and prior to hardening to minimise the possibility of distortion.Heat in a neutral atmosphere to the  temperature of 600 to 650°C, and  soak for approximately two hours,followed by slow cooling in the furnace.

T5 Steel Hardening

Preheat T5 tool steel slowly to the temperature of 820-870°C,then heat uniformly to Austenitizing Temperature,for salt bath 1277°C,for Controlled atmosphere furnace 1288°C,followed by salt bath or thermal quenching or warm bath approx. 550°C.

T5 Steel Tempering

Tempering should be carried out immediately after quenching. Heat slowly and uniformly to the tempering temperature 550-590°C,soak well not less than 2 hours(one hour per 25mm of total thickness).Triple tempering is recommended,hardness after tempering is Min 63HRC.

Tempering Temperature 100 150 200 250 300 350 400 450 500 550 600 650
Hardness (HRC) 64 64.5 63 62.5 62 62 62.5 63.6 64.8 66 64 60

T5 Steel Application

AISI T5 high speed steel is good for machining high strength steel,high temperature alloy,titanium alloys,casting alloy materials and other difficult-to-machine materials,and also is widely used in cutting tools,broaches,punches, turning blades,milling cutter,drill,and etc.

T5 Steel Buying Guide

In this guide, we are going to discuss more about T5 steel, its properties, chemical composition and every other element you need to know about T5 steel. Firstly, I would like to congratulate you for finding your way into the WALDUN Steel online portal where you can find any type of quality steels designed for different applications at an affordable rate.

t5 steel

Waldun steel is the best and trusted manufacturer of all types of steels in China known for quality products and services. Buying T5 steel from us will be a choice you will never regret but before that, we have some information about AISI T5 steel to share with you

What is T5 steel or AISI/ASTM T5 steel?

The T5 Steel is defined as a high-speed Tungsten tool steel that is classified as T-steels by the AISI system of classification. The steel T series ranges from T1 to T15.

The characteristics of these steels are similar to those of molybdenum tool steels.

T5 steel also belongs to the AISI steels which represent the American Iron and Steel Institute, this explains why AISI is attached to the name of this steel. So don’t be confused when you see AISI or ASTM T5 steel they are the same.

ASTM on the other hand stands for American Society for Testing and Materials. The most commonly used standards for steel products are those published by ASTM in the United States (American Society for Testing and Materials).

ASTM specifications represent a consensus among steel mill products manufacturers, specifications, manufacturers and users. The T represents the Tungsten tool steels while the 5 helps to differentiate the steel type from other models since the steel T series ranges from T1 to T15.

What is the chemical composition of T5 Steel?

There are several chemical compositions of T5 steel which are shown below.

Element Content (%)
Tungsten, W 17.50-19.00
Chromium, Cr 3.75-5.00
Vanadium, V 1.80-2.40
Carbon, C 0.75-0.85
Molybdenum, Mo 0.50-1.25
Nickel, Ni 0.3
Copper, Cu 0.25
Silicon, Si 0.20-0.45
Manganese, Mn 0.20-0.40
Phosphorus, P 0.03
Sulfur, S 0.03
Iron, Fe Balance

What are the Physical Property of T5 Steel?

Below are the physical properties of T5 Steel you should know.

Density ,g/cm3 8.75
Specific heat,J/kg.K 42
Thermal conductivity, W/mK 34
Modulus of elasticity,kN/mm2 424
Thermal expansion,20-100 ºC,untreated 11.2 x 10^ -6 /ºC

What are the Mechanical Properties of T5 Steel?

You can see the mechanical properties associated with T5 Steel below.

Hardness, Rockwell C (Quenched at 1277°C, Tempered at 552°C) 63-65 HRC
Poisson’s ratio 0.27-0.30
Elastic modulus 190-210 GPa

T5 Steel Processing

The round bar and flat parts of T5 High-Speed Steel can be cut into your desired sizes as required.

You can also deliver a T5 High-Speed ground steel bar, providing your required tolerances with a high-quality tool steel precision ground tool bar.

Also available in standard and non-standard sizes as a ground flooring/gauge platform are T5 high-speed steel.

What are the T5 Steel Forms, Sizes & Tolerance waldun steel offers?

Waldun is a steel manufacturing company that will understand your requirements and ensure that you get only but the best quality steel of any type. When it comes to T5 Steel you can choose from the varieties of Form, Size & Tolerance as shown below.

Round bar
Diameter 1-16mm 10-50mm 50-180mm 180-300mm
Process Cold Drawn Hot Rolled Hot Forged Free Forging
Flat bar
Thickness 1-2.5mm 1.5-20mm 20-300mm
Width Max 800mm Max 800mm Max 800mm
Process Cold Drawn Hot Rolled Hot Forged

The good news is that tolerance can be customized as per requests, so you are fully covered.

T5 Steel forging process

There are two phases to take before heating the AISI T5 steel, you can start the forging process by heating at a rate, not more than 1000-1150°C steadily and consistently at 650-750°C, secondly, at a rate of not more than 2220°C per hour. When the temperature falls below 950°C, reheating is required. After forging, gradual cooling in the oven.

T5 Steel Annealing process

Annealing after hot work and before re-hardening is necessary. Ensure that you have a temperature between 820°C to 870°C without exceeding 220°C per hour.

Regulated slow furnace cooling at 10 to 20°C per hour to about 550°C, accompanied by still air cooling. Hardness after 285Brinell annealing.

Stress Relieving of T5 Steel

Stress relief can be carried out by heating up to 600-650oC for one hour at heat and air cooling to eliminate machining stresses. During heat treatment, this procedure is performed to minimize distortion.

Hardening of Steel T5

Hardening of T5 Steel involved 3 simple processes which are shown below.

  • 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 the air. (care must be taken at this step)

T5 Steel Tempering

Before Tempering ensure that the temperature is at 550-590oC.

Application of AISI T5 Tool Steel

High-Speed AISI T5 Steel is the most commonly used high-speed steel tungsten type, with high-temperature hardness and high red hardness easier to grind.

Cutting equipment, including vehicles, raspers, grinding, broaching, drilling, cutting machines and tap, drifting, etc., suitable for the soft or medium hardness process below (300 ~ 320 HB). Applying for a working temperature below 600°C will keep cutting efficiency. The development of the abrasion machine with high temperatures

Where to buy T5 Steel for all applications?

You are already in the right place. Waldun steel is a trusted T5 steel wholesaler in China. If you care about quality and best customer support then Waldun Steel is here to assist you and ensure you get the best of what you want.

It’s time to act!

You have seen all the properties of T5 Steel, it’s time for you to take action, pick up your phone and call Waldun Steel manufacturing company customer support department or email us to get free quotes and prices.

Waldun Steel Company guarantees the best quality steels of any kind and ready to supply any quantity whenever you are ready.

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