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Hoberg & Driesch group
Hoberg & Driesch Finland Oy

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Structural steels, grain hardening steels, carbon hardening steels, free cutting steels

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Structural steels

Steel grade: S355J2
Standard: EN 10025 Hot rolled, EN 10250 Forged
Dimensions and tolerances: hot rolled EN 10060 or fine forged h9, Forged -0/+3mm
Material certification: EN 10204:3.1
Delivery condition: +U (rolled), +N (normalized), +S (cold cut)
Dimension range: Round 14 - 580mm, Square 40 - 220mm

  • General purpose
  • Good weldability

S355J2 is a general purpose round bar steel for all steel structures. Available in hot rolled and forged, round and square.

With a diameter range of 18-105mm we can offer tailor-made heat and surface treatment solutions for even the smallest deliveries.

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Unalloyed grain mill steels

Steel grade: C35, C45, C60
Standard: hot rolled EN ISO 683-1, forged EN10250-2
Dimensions and tolerances: hot rolled EN 10060 or fine forged h9, forged -0/+3mm
Material certification: EN 10204:3.1
Delivery condition: +U (rolled), +N (normalized), +S (cold cut)
Dimension range: Diameter 12 - 500mm

The strain hardening process gives the steel high strength properties and good toughness. Scoring steels are widely used in mechanical engineering for high strength components such as bolts, gears and springs. Available hot rolled and forged.

We supply unalloyed carbon steel in unalloyed form.

In the diameter range 18-105mm, we can offer tailor-made heat and surface treatment solutions for even the smallest deliveries.

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Alloyed pig iron

Steel grade: 25CrMo4, 42CrMo4, 34CrNiMo6, 30CrNiMo8
Standard: EN ISO 683-2
Dimensions and tolerances: hot rolled EN 10060 or fine ground h9, Forged -0/+3mm
Certificate of conformity: EN 10204:3.1
Delivery condition: +U (rolled), +QT (fluted), +S (cold cut)
Dimension range: Diameter 12 - 500mm

  • Excellent strength and toughness properties

The peening process gives the steel high strength properties and good toughness. Scoring steels are widely used in mechanical engineering for high-strength components such as bolts, gears and springs. Available hot rolled, forged and cold drawn.

In the diameter range 18-105mm, we can offer tailored heat and surface treatment solutions for even the smallest deliveries.

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Carbon tempering steels

Steel grade: 16/20MnCr5, 18CrNiMo7-6
Standard: hot rolled EN ISO 683-3, forged EN10250-2
Dimensions and tolerances: hot rolled EN 10060 or fine forged h9, forged -0/+3mm
Certificate of conformity: EN 10204:3.1
Delivery mode: +U (rolled), +FP (ferritic-perlitic), +S (cold cut)
Dimension range: diameter 13 - 630mm

  • 630 mm - 630 mm - 630 mm - 630 mm - 630 mm
  • Good fatigue strength

Carbon hardened and tempered steels are surface hardened steels by carbonisation. The hard hardened surface has excellent wear resistance and good fatigue strength. The most common applications are machine parts requiring wear resistance, such as gears.

In the diameter range 18-105mm, we can offer tailor-made heat and surface treatment solutions for even the smallest deliveries.

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Automatic steels

Steel grade: 11SMn30
Standard: EN ISO 683-4
Dimensions and tolerances: hot-rolled EN 10060
Material certificate: EN 10204:3.1
Delivery condition: +U (rolled)
Dimension range: diameter 55 - 240mm

  • Good machinability
  • Suitable for automatic machines

Excellent machinability due to good machinability. Most common applications are screws, bolts and other machine parts.

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