BMG-AT41®
A reliable, creep resistant bolting material, developed as an alternative to Durehete™ 1055. It is known for its temperature strength and relaxation resistance to 570°C, becoming a growing choice within power generation plants.
- CEGB GDCD TD2 ISS2
- CEGB 0259604/82 (T41)
- BS 1506 681-820
- BS 4882 B16A
- Siemens AG Spec TLV 9185 01
- Siemens 221
- BSEN 10269 1999 Material Number 1.7729
- Durehete™ 1055 *
Fully certified material, additional testing available
Same day quote, next day dispatch
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BMG-AT41® has been approved for use by:
Drax Power
Siemens UK and Germany
GE (USA and UK)
Doosan Babcock / Doosan Heavy Industry
EDF (for use in Coal and Nuclear applications)
Weir Group (Allen Steam Turbines)
Alstom (South Africa)
BMG-AT41® Chemical Composition
| Element | Min | Max |
| Fe | Bal | - |
| C | 0.17 | 0.23 |
| Si | - | 0.40 |
| Mn | 0.35 | 0.75 |
| P | - | 0.02 |
| S | - | 0.08 |
| Al | 0.015 | 0.08 |
| B | 0.001 | 0.01 |
| Cr | 0.90 | 1.20 |
| Mo | 0.90 | 1.10 |
| Ni | - | 0.20 |
| V | 0.60 | 0.80 |
| Ti | 0.07 | 0.15 |
| As | - | 0.02 |
| Sn | - | 0.02 |
| Cu | - | 0.20 |
| Sb | - | Reported |
| R* | - | 0.10 |
| *R= P+2.43As+3.57Sn+8.16Sb+0.13Cu |
BMG-AT41® Mechanical Properties
| Dia | 0.2% PS | UTS | Elongation | Red of Area | Energy Impact | |
| n/mm2 | n/mm2 | % on 5d | % | Charpy | IZOD | |
| min | min | J ave | J min | |||
| <= 100mm | 660 | 820-970 | 15 | 50 | 40 | 27 |
| >= 100mm | 660 | 820-970 | 15 | 50 | 27 | 27 |
For more technical information download our BMG-AT41 information sheet here
Applications:
BMG-AT41 is specifically designed for use in the power generation industry, within coal power stations, nuclear, biomass projects and power generation plants globally.
End uses:
- Fasteners
- Boiler support rods
- Turbine studs
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