Seamless rolled rings

Seamless rolled rings

We produce seamless rolled rings, flanges and rail-vehicle tyres to the very highest standards. This expertise has made us the world-leading manufacturer of ring blanks for the animal feeds industry, wheel tyres for the rail industry and drill-pipe connectors for specialised underground engineering.

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Definition

Seamless rolled rings, flanges and wheel tyres are manufactured on high-performance radial-axial rolling machines in which two separate roll gaps (radial and axial) act on the stock. The diameter of the ring increases as a result of the wall thickness of the ring blank being reduced by radial and the ring height by axial forming. Our seamless rolled rings are notable not least of all for their extemely homogeneous microstructure and great resistance to mechanical and other stresses.

Production process

Ring blanks are produced from cast ingots, blooms, billets or other feed materials on compression forging and punching machines, followed by roll-forming to diameters of up to 4,000 mm on our radial-axial rolling machine. After the roll-forming process, the ring blanks are heat-treated and finish-machined precisely to the customer’s specification.

Benefits

Our seamless rolled rings are the perfect choice wherever the application involves extreme loads and demands compliance with high safety standards. Our production processes are especially materials-efficient because we manufacture using only minimal allowances and employ a great variety of specialist tools to achieve the specified hub and rim contours. Other notable advantages of our ring production methods include, for example, the low volume of material removed and the enhanced properties of our ring products resulting from our near-net-shape hot forming processes.

  • Up to 4,000 mm/4,000 kg
  • From one-off to large-series production
  • Hub, face and rim profiling

Products

Die rings

Seamless rolled rings for annular and flat dies up to 4,000 mm dia. and 4,000 kg.

Material designation Material No. Standards  
X46Cr13 1.4034 by agreement Request quotation
20MnCr5 1.7147 by agreement Request quotation
Ohters   by agreement Request quotation
Customised die rings     Request quotation

Rail-vehicle tyres

Rail-vehicle tyre blanks up to 2,100 mm dia. and 1,200 kg.

Material designation Standards  
B1 - B6 UIC810-1 Request quotation
B6S / B6Z by agreement Request quotation
M66 by agreement Request quotation
S4 / S5 by agreement Request quotation
N72 / S100 L by agreement Request quotation
V101 by agreement Request quotation
Excelsior / Exzellent by agreement Request quotation
P70 by agreement Request quotation
DHT ASTM A551 Request quotation
KVR600 by agreement Request quotation
GOST Grade 2+4 by agreement Request quotation
Others by agreement Request quotation
Customised rail-vehicle tyres   Request quotation

Flanges

Flange blanks up to 4,000 mm dia. and 4,000 kg.

Material designation Material No. Standards  
C22.8 / P250GH 1.0460 EN10222-2 or by agreement Request quotation
P245GH / P265GH / P280GH 1.0352 / 1.0425 / 1.0426 EN10222-2 or by agreement Request quotation
15 / 16Mo3 1.5415 EN10222-2 or by agreement Request quotation
13CrMo4-5 1.7335 EN10222-2 or by agreement Request quotation
10/11CrMo9-10 1.7380 / 1.7383 EN10222-2 or by agreement Request quotation
12CrMo19-5 1.7362 EN10222-2 or by agreement Request quotation
A105   ASTM A105 or by agreement Request quotation
SA266 Grade 4 / SA516 Grade 70   by agreement Request quotation
F1 / F5 / F11 / F12   ASTM A182 or by agreement Request quotation
LF1 / LF2 Cl. 1 / LF2 Cl.2   ASTM A350 or by agreement Request quotation
X12Cr13 1.4006 EN10088 or by agreement Request quotation
X20Cr13 1.4021 EN10088 or by agreement Request quotation
X5CrNi18-9 / 18-10 - F304 / F304L 1.4307 / 1.4301 EN10222-5 / ASTM A182 or by agreement Request quotation
X2CrNi19-11 1.4306 EN10222-5 or by agreement Request quotation
X2CrNiMo17-12-2 - F316 / F316L 1.4404 EN10222-5 / ASTM A182 or by agreement Request quotation
X6CrNiTi18-10 - F321 / F321L 1.4541 EN10222-5 / ASTM A182 or by agreement Request quotation
X6CrNiMoTi17-12-2 - F316Ti 1.4571 EN10222-5 / ASTM A182 by agreement Request quotation
Others   by agreement Request quotation
Customised flanges     Request quotation

Drill-pipe connectors

Seamless rolled rings for drill-pipe connectors up to 4,000 mm dia. and 4,000 kg.

Material designation Material No. Standards  
25CrMo4 1.7218 EN10083 or by agreement Request quotation
S355J2 1.0570 EN10025 or by agreement Request quotation
Others   by agreement Request quotation
Customised drill-pipe connectors      Request quotation

Gearwheel blanks

Seamless rolled rings for gearwheels up to 4,000 mm dia. and 4,000 kg.

Material designation Material No. Standards  
S355J2 1.0570 EN10025 or by agreement Request quotation
P355QH1/P420QH 1.0571 / 1.8936 by agreement Request quotation
C45 1.1191 EN10083 or by agreement Request quotation
C60 1.1221 EN10083 or by agreement Request quotation
25CrMo4 1.7218 EN10083 or by agreement Request quotation
34CrMo4 1.7220 EN10083 or by agreement Request quotation
42CrMo4 1.7225 EN10083 or by agreement Request quotation
30CrNiMo8 1.6580 EN10083 or by agreement Request quotation
34CrNiMo6 1.6582 EN10083 or by agreement Request quotation
16 / 20MnCr5 1.7131 / 1.7147 EN10084 or by agreement Request quotation
17CrNiMo6/18CrNiMo7-6 1.6587 EN10084 or by agreement Request quotation
30/31CrMoV9 1.7707 / 1.8519 EN10085 or by agreement Request quotation
Others   by agreement Request quotation
Customised gearwheel blanks      Request quotation

Rolling-element bearing and rotary joints

Seamless rolled rings up to 4,000 mm dia. and 4,000 kg.

Material designation Material No. Standard  
C45 1.1191 EN10083 or by agreement Request quotation
C60 1.1221 EN10083 or by agreement Request quotation
42CrMo4 1.7225 EN10083 or by agreement Request quotation
100Cr6 1.3505 by agreement Request quotation
100CrMn6 / 100CrMnsi6-4 / 6-6 1.3520 by agreement Request quotation
100CrMo7-3 1.3536 by agreement Request quotation
18NiCrMo14-6 1.3533 by agreement Request quotation
Others   by agreement Request quotation
Customised rolling-element bearing and rotary joints     Request quotation

Tool-steel rings, rings for the energy sector

Seamless rolled rings up to 4,000 mm dia. and 4,000 kg.

Material designation Material No. Standards  
X3CrNiMo13-4 / F6NM 1.4313 by agreement Request quotation
55 / 56NiCrMoV7 1.2714 by agreement Request quotation
X45NiCrMo4 1.2767 by agreement Request quotation
X37CrMoV5-1 1.2343 by agreement Request quotation
X40CrMoV5-1 1.2344 by agreement Request quotation
Others   by agreement Request quotation
Tool-steel rings, customised rings for the energy sector     Request quotation

Heat treatment options

  • Quenched and tempered (+QT)
  • Normalising annealed (+N)
  • Treated to hardness range (+TH)
  • Stress-relieving annealed (+SR)
  • Spheroidising annealed (+AC)
  • Soft-annealed (+A)
  • Ferrite-pearlite tempered (+FP)
  • Solution annealed
  • Special heat treatment (by agreement)

Machining options

  • Turning
  • Drilling
  • Milling
  • Grinding

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Contact

Lukas Stefl

Sales Director Rolled Rings