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ASTM T4 / DIN EN S18-1-2-5 1.3255 High Speed Steel Bar / Rod Dia 2-300mm

ASTM T4 / DIN EN S18-1-2-5 1.3255 High Speed Steel Bar / Rod Dia 2-300mm

ASTM T4 / DIN EN S18-1-2-5 1.3255 High Speed Steel Bar / Rod Dia 2-300mm
ASTM T4 / DIN EN S18-1-2-5 1.3255 High Speed Steel Bar / Rod Dia 2-300mm ASTM T4 / DIN EN S18-1-2-5 1.3255 High Speed Steel Bar / Rod Dia 2-300mm

Ampliación de imagen :  ASTM T4 / DIN EN S18-1-2-5 1.3255 High Speed Steel Bar / Rod Dia 2-300mm

Datos del producto:
Lugar de origen: China continental
Nombre de la marca: UST
Certificación: ISO 9001:2008
Número de modelo: ASTM T4
Pago y Envío Términos:
Cantidad de orden mínima: 200 kilogramos
Precio: USD 11500-42000 / Metric Ton
Detalles de empaquetado: En el embalaje estándar de la exportación y el material marinero con el paquete rectangular de la fo
Tiempo de entrega: 15-35 días
Condiciones de pago: L/C, T/T, D/A, D/P
Capacidad de la fuente: 300 toneladas métricas por mes
Descripción detallada del producto
Matrial: acero de alta velocidad estándar: GB, ASTM, ESTRUENDO, JIS
Grado: T4 / 1,3255 Diámetro: 2-300m m
Longitud: Debajo de 16 metros Forma: barra redonda
Técnicas: Retirado a frío; Laminado en caliente; Laminado; Forjado superficie: Negro, brillante, pulido, pelado, o a petición
Prueba ultrasónica: El 100% UT pasajero Procesamiento: Recocido o apagado y moderado proporcionado
Extremo: Extremo biselado, llano como sea necesario Inspección de la calidad: SGS, BV etc.
Servicio: Se proporciona el servicio del corte y la inspección de la tercer persona
Alta luz:

hss tool steel bar


hss high speed steel



AISI T4 tool steel is one of tungsten type high speed tool steel, which belongs to ASTM A600 specification, the standard for high speed tool steel materials.


ASTM 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.





AISI T4 high speed tool steels are widely used as cutting tools, broaches and cold extrusion punches, turning, planing and milling cutters for roughing work.

Typical applications are:

  • Drills,
  • Milling Cutters,
  • Thread Cutting Tools,
  • Knurling Tools,
  • Cold extrusion punches
  • Broaches etc.

Steel Grade 1.3255 / T4 Application Tool steel, Mold Steel
Shape Round Bar Standard GB, ASTM, DIN,JIS
Dimension Φ2-300 mm; length below 16m Surface Black, Bright, Polished, Peeled
Technique Cold drawn; Hot rolled; Forged Ultrasonic Test 100% UT Passed




  Diameter (mm)
Cold drawn 10-100
Peeled 30-160
Grinded 10-600
Turned 130-1600
Hot Rolled 20-280
Hot Forged 130-1000



-HOT rolled or Forged, Annealed

-Surface Finish: Black, Rough Machined, Peeled, Turned or as per given requirements

-UT 100% passed

-Cutting service provided

-Third Party inspection is acceptable (SGS, BV etc.)




T4 1.3255 S18-1-2-5 SKH3 W18Cr4VCo5




C Si Mn P S Cr V Mo Co W





















Mechanical properties Metric Imperial
Modulus of elasticity  190-210 GPa 27557-30458 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30





Forging of ASTM A600 High Speed Tool Steel T4


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.

Heat Treatment of AISI T4 High Speed Material

  • 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.


ASTM T4 / DIN EN S18-1-2-5 1.3255 High Speed Steel Bar / Rod Dia 2-300mm 0


What we can offer?

-We offer a wide range of steel products in a wide variety of dimensions and executions, according to the common international specifications or customize.

-Machining and heat treatment are available.

-Also, we advise you in choosing the right materials.


Shape Available

  • Solid round bar
  • Flat bar
  • Square bar
  • Hexagon bar
  • Block
  • Plate
  • Sheet
  • Wire rod
  • Strip


Our Advantages

  • High mechanical property and quenching, enable the surface share equal hardness after deal with it
  • Good polishing and low roughness
  • Making the heat-treatment to harden condition before using it
  • Competitive price
  • Fast production lead-time
  • All the material are inspected with 3 times to meet the highly standards
  • Pure steel quality & stable quality to be guarantee



ASTM T4 / DIN EN S18-1-2-5 1.3255 High Speed Steel Bar / Rod Dia 2-300mm 1



Available Size:

-Round: Dia. 2-300 mm

-Flat: T. 6-250 mm x W. 20-600 mm

-Block: T. 80-1200 mm x W. 100-1600 mm




1. Both T/T and L/C will be acceptable

2. Trade Terms: FOB, CIF, CFR

3. The delivery will be in 10-15 days if have stock; For customized items, the delivery will be negotiated by both parties

4. Shipping by sea freight from Shanghai Port (PRC) for Bulk orders, by airfreight or express for samples




Shanghai Unite Steel Trading Co., Ltd

We are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise.

In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china.

What’s more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!




Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and trading company. We specialized in special steel which include alloy structural steel and carbon steel and stainless steel, etc. All material are with high quality and competitive price.

Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as TUV, CE, if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.

Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material doesn't have stock, the delivery lead time is about 5-30 days after receiving your prepayment or firm order.

Q: What is the payment term?
A: T/T or L/C.

Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.




We are happy to answer your questions and make you an offer for these and other materials. Contact us now for more information.


Your Contact Person

Ms Chilli Ho

Phone/Wechat/Whatsapp +86-181-0187-5575

Skype: chilli.ho@outlook.com

Email: chilli.ho@shunitesteel.com



Persona de Contacto: Neya

Teléfono: +8615261689453

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