440HBW Quenched Hardened Steel Bar High Precision Diameters 21 - 172 Mm

Product Details:
Place of Origin: China
Brand Name: VANFORGE
Certification: ISO9001, ISO10012, ISO14001, OHSAS18001, ABS, BV, DNV, Lloyd, NK
Payment & Shipping Terms:
Minimum Order Quantity: 5 metric tons
Price: Negotiable
Packaging Details: Seaworthy package for export
Delivery Time: 60 days
Payment Terms: L/C, T/T
Supply Ability: 5000 metric tons per month

Detail Information

Material: Alloy Steel Process: Hot Rolled
Treatment: Quenched And Tempered Surface: Black, Peeled
Shape: Round Length: Cut To Length On Request
High Light:

high tensile steel bar


hardened steel rod

Product Description

440HBW quenched and tempered tool and engineering steel round bar




Pre-hardened, precise, predictable steel, now in round bars.


440HBW tool steel round bars are pre-hardened, ready-to-use quenched and tempered tool steels that come in a range of diameters from small to large.


Suitable for engineering applications in tool holders and in different types of shafts and rolls, the diameter dimensions also provide a better solution for round parts in tooling applications like molding and in dies for aluminium die casting.


Dimension Range


440HBW tool steel round bars are available in diameters 21 - 172 mm. Other dimensions can be available on request.


Mechanical Properties






21 - 150 410 - 475

Bar Hardness is measured on a milled surface, with indents positioned as impact test according to EN 10083.


Impact Properties




Min. Impact Energy for Charpy-V, longitudinal direction
21 - 141 18 J / 20 °C
142 - 150 11 J / 20 °C

Impact testing according to EN 10083, EN ISO 148.


Ultrasonic testing

Ultrasonic inspection is carried out according to EN 10308


Diameter and Length

Tolerances according to EN 10 060.



Straightness according to EN 10 060.


Surface Properties

Turned surface.


Delivery Conditions

Quenched and Tempered at a minimum temperature of 590°C.

On delivery from VANFORGE the bars meet the following specifications:

  • free from mill scale
  • not repair welded


Fabrication and Other Recommendations


Welding, bending and machining

440HBW tool steel is not intended for further heat treatment. If 440HBW tool steel is heated above 590°C after delivery from VANFORGE, no guarantees for the properties of the steel are given.

Nitriding or surface coating may be carried out if the temperature is below 590°C.

Appropriate health and safety precautions must be taken when welding, cutting, grinding or otherwise working on the product. Grinding, especially of primer-coated plates, may produce dust with high particle concentration.


Product size range

Diameter: 21mm - 150mm

Length: on request



Production Process


440HBW Quenched Hardened Steel Bar High Precision Diameters 21 - 172 Mm 0

440HBW Quenched Hardened Steel Bar High Precision Diameters 21 - 172 Mm 1



Key clients


440HBW Quenched Hardened Steel Bar High Precision Diameters 21 - 172 Mm 2



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