Bright steel

Bright steel

Around the world, peeled bright steel supplied by GMH Gruppe forms the basis for high-tech components. At all our locations, our specialists work together on meeting our customers' requirements precisely – from high-quality feed material up to and including ready-to-use components.

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Definition

Bright steel - and round steel - is characterised by its smooth, as clean as possible surface. Our bright steel, peeled to ultra-tight tolerances, meets maximum standards for dimensional accuracy. It therefore forms the basis for a broad and diverse range of components for use, for example, in steering and power train systems, in piston rods, in automotive, plant and mechanical engineering and in numerous specialised applications.

Production process

GMH Gruppe's bright steel is produced on highly productive and efficient bright steel lines. Hot-rolled steel bar is peeled, straightened and polished to in many cases ultra-tight standardised and customer tolerances by means of chip-removing machining. A large range of machining and heat-treatment methods, CNC machines and ultra-accurate inspection equipment ensures precise attainment of our customers' specifications.

Benefits

Short routes and efficient processes operating in close cooperation make possible the rapid availability of bright steel products in a highly diverse range of grades, special chemical analyses and test heats. Within GMH Gruppe we produce a large range of steel grades, numerous surface finishes and heat-treatment states and are able to meet individual customer requirements with maximum dimensional accuracy.

  • Efficient and flexible processes
  • More than 500 different grades
  • Rapid availability

Our range

High-quality steels

There are generally fixed requirements for high-quality steels - concerning tensile strength, yield strength and formability, for example. Alloyed high-quality steels are usually not intended for quenching and tempering or for surface/case hardening. High-grade structural steels should be selected for these purposes.

Typical applications: Structural steels, special sections for automotive and mechanical engineering, structural steel elements

Material No. Name Dimensions Length  
1.0038 S255JR 18-250 mm max. 12 m Request quotation
1.0301 C10 18-250 mm max. 12 m Request quotation
1.0401 C15 18-250 mm max. 12 m Request quotation
1.0570 S355J2 18-250 mm max. 12 m Request quotation
1.9426 SAE 1027 18-250 mm max. 12 m Request quotation

in acc. with DIN EN 10277 and DIN EN 1027

Calculate the weight of your steel.

To the steel weight calculator

 

Quenched and tempered (QT) steels

Quenched and tempered (QT) steels are used for components exposed to high static and dynamic loads. Non-alloy QT steels are selected for more slender dimensions and lower requirements. We supply alloyed QT steels for thicker components and higher specifications.

Typical applications: Steering knuckles, Bolts, Crankshafts, Piston rods, Rotor shafts, Turbine and generator shafts

Material No.  Name Dimensions Length  
1.1133 20Mn5 18-250 mm max. 12 m Request quotation
1.1191 C45E 18-250 mm max. 12 m Request quotation
1.1206 C50E 18-250 mm max. 12 m Request quotation
1.1234 70MnVS4 / 75Mn4 18-250 mm max. 12 m Request quotation
1.5094 38MnS6 18-250 mm max. 12 m Request quotation
1.5511 35B2 18-250 mm max. 12 m Request quotation
1.5531 30MnB5 18-250 mm max. 12 m Request quotation
1.6580 30CrNiMo8 18-250 mm max. 12 m Request quotation
1.7038 37CrS4 18-250 mm max. 12 m Request quotation
1.7182 27MnCrB5-2 18-250 mm max. 12 m Request quotation
1.7213 25CrMoS4 18-250 mm max. 12 m Request quotation
1.7225 42CrMo4 18-250 mm max. 12 m Request quotation
1.7228 50CrMo4 18-250 mm max. 12 m Request quotation

in acc. with DIN EN 10277 and DIN EN 1027

Calculate the weight of your steel.

To the steel weight calculator

Case-hardening steel (gear steel)

Case-hardening steels are used wherever a combination of different properties is needed. This is achieved via the use of steels with a relatively low carbon content. Case-hardening steels are ideal for use in gearing and gearwheel engineering.

Typical applications: Gearing, Couplings/clutches, Shafts Gearwheels

Material No. Name Dimensions Length  
1.5919 15CrNi6 18-250 mm max. 12 m Request quotation
1.6523 20NiCrMo2-2 18-250 mm max. 12 m Request quotation
1.6571 20NiCrMoS6-4 18-250 mm max. 12 m Request quotation
1.6587 18CrNiMo7-6 18-250 mm max. 12 m Request quotation
1.7016 17Cr3 18-250 mm max. 12 m Request quotation
1.7121 20CrMnS3-3 18-250 mm max. 12 m Request quotation
1.7139 16MnCrS5 18-250 mm max. 12 m Request quotation
1.7147 20MnCr5 18-250 mm max. 12 m Request quotation
1.7151 27MnCrS5 18-250 mm max. 12 m Request quotation
1.7160 16MnCrB5 18-250 mm max. 12 m Request quotation
1.7264 20CrMo5 18-250 mm max. 12 m Request quotation
1.7323 20MoCrS4 18-250 mm max. 12 m Request quotation
1.7325 25MoCr4 18-250 mm max. 12 m Request quotation
1.8708 20MnCrNiMo6-3 18-250 mm max. 12 m Request quotation

in acc. with DIN EN 10277 and DIN EN 1027

Calculate the weight of your steel.

To the steel weight calculator

Rolling-element bearing steels

Rolling-element bearing steel has uniform high hardness, good wear properties and good cleanness. Rolling-element bearing steels are therefore used for their resistance to the high cyclical loads and high surface pressures to which rolling-element bearings are exposed during service.

Typical applications: Ball bearings, Needle bearings, Roller bearings

Material No. Name Dimensions Length  
1.3505 100Cr6 18-250 mm max. 12 m Request quotation
1.3520 100CrMnSi6-4 18-250 mm max. 12 m Request quotation
1.3536 100CrMo7-3 18-250 mm max. 12 m Request quotation
1.3537 100CrMo7-3 18-250 mm max. 12 m Request quotation
1.3539 100CrMnMoSi8-4-6 18-250 mm max. 12 m Request quotation
1.3533 18NiCrMo14-6 18-250 mm max. 12 m Request quotation
1.6587 18CrNiMo7-6 18-250 mm max. 12 m Request quotation
1.1219 C56E2 18-250 mm max. 12 m Request quotation
1.1244 70Mn4 18-250 mm max. 12 m Request quotation

in acc. with DIN EN 10277 and DIN EN 1027

Calculate the weight of your steel.

To the steel weight calculator

Micro-alloyed steels

Micro-alloyed precipitation-hardening ferritic-pearlitic (PHFP) steels are used in components in which the required mechanical properties are achieved by means of controlled cooling from the hot-forming temperature. High-cost heat treatment after hot forming can therefore be eliminated, reducing costs significantly.

Typical applications: Pistons, Crankshafts, Piston rods

Material No. Name Dimensions Length  
1.0603 C70S6 /C67 18-250 mm max. 12 m Request quotation
1.1197 25MnV5 18-250 mm max. 12 m Request quotation
1.1199 49MnVS3 18-250 mm max. 12 m Request quotation
1.1243 70MnVS4 / 75Mn4 18-250 mm max. 12 m Request quotation
1.1304 46MnVS6 18-250 mm max. 12 m Request quotation
1.5217 20MnV6 18-250 mm max. 12 m Request quotation
1.5231 38MnSiVS5 18-250 mm max. 12 m Request quotation
1.5232 27MnSiVS6 18-250 mm max. 12 m Request quotation

in acc. with DIN EN 10277 and DIN EN 1027

Calculate the weight of your steel.

To the steel weight calculator

Dimensions/lengths

  • Peeled and straightened in conformity to DIN EN 10277 and DIN EN 10278: 18 – 250 mm round
  • Peeled and straightened up to tolerance range h9: 18 – 250 mm round
  • Peeled, straightened and polished to h6: 18 – 160 mm round
  • Depending on dimensions, up to max. 12.0 m
  • Other lengths and short lengths by agreement

Heat treatment options

  • Treated for special mechanical strength (+TH)
  • Soft annealed (+A)
  • Stress-relieving annealed (+SR)
  • Treated for special microstructure (+FP)
  • Normalising annealed (+N)
  • Quenched and tempered (water or air hardening) (+QT)
  • Treated for shearability (+S)
  • Spheroidising annealed (+AC)
  • Treated for sawability

Machining/End finish

  • Sawing
  • Bevelling
  • Centering
  • Turning
  • Milling
  • Deep hole drilling
  • Abrasive cutting
  • Chamfered
  • Sawn and deburred
  • Special types

Certificates/Approvals/Certificate types

  • IATF 16949
  • DIN EN ISO 9001
  • DIN EN ISO 14001
  • DIN EN ISO 50001
  • Bureau Veritas (BV)
  • Det Norske Veritas (DNV)
  • Germanischer Lloyd (GL)
  • Saxony-Anhalt Materials Testing Institute
  • Lloyd’s Register of Shipping (LRS)
  • TÜV inc. TRD 100 and AD-W0
  • Certification in acc. with DIN EN 10204
  • Test Report 2.2/3.1/3.2

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Contact

Marco Altenhöfer

Sales Director Peeled Bars & CNC