✓ Available from European Stock

• EN 10269
• EN 10204 3.1
• Round Bars
• Worldwide Shipping
• Cut-to-Length Service
• Fast Quotation

1.7729 / 20CrMoVTiB4-10 +QT / Durehete® 1055 / Alloy T41

High Temperature Alloy Steel Round Bars Supplier

Looking for 1.7729 round bars, 20CrMoVTiB4-10, Durehete® 1055 or Alloy T41?

WTE PowerSteel is a European supplier and stockholder of EN 10269 1.7729 (20CrMoVTiB4-10 +QT) alloy steel for high-temperature applications. We supply certified round bars with full traceability and fast delivery throughout Europe and worldwide.

This chromium-molybdenum-vanadium alloy steel with titanium and boron additions has been developed for demanding applications where high creep resistance, excellent mechanical strength and long-term stability at elevated temperatures are essential.

Our material is supplied in accordance with EN 10269 and is suitable for the manufacture of critical fasteners and components operating at temperatures up to approximately 570°C.

Why Choose 1.7729 (20CrMoVTiB4-10)?

Compared with conventional CrMo alloy steels, 20CrMoVTiB4-10 provides significantly improved creep resistance and long-term mechanical stability at elevated temperatures.

Key Benefits

• Excellent creep resistance
• High tensile and yield strength
• Outstanding stress relaxation properties
• Long service life under high-temperature loading
• Excellent toughness after quenching and tempering
• Stable mechanical properties up to approximately 570°C
• Good machinability after heat treatment
• Designed specifically for critical bolting applications

Typical Applications

1.7729 is widely used in industries where high-temperature reliability is essential.

Typical applications include:

• Steam turbine bolts
• Gas turbine bolts
• Boiler studs
• Turbine casing bolts
• Pressure vessel bolting
• Heat exchanger fasteners
• Superheater bolting
• High-temperature threaded rods
• Special forged components
• Power plant fasteners
• Petrochemical equipment
• Nuclear power fasteners

Industries Served

Our customers use 1.7729 / Durehete® 1055 in:

• Nuclear Power
• Thermal Power Plants
• Gas Turbine Manufacturing
• Steam Turbine Manufacturing
• Oil & Gas
• Petrochemical Industry
• Chemical Processing
• Heavy Engineering
• Energy Equipment Manufacturing

Available Product Forms

We supply:

• Round Bars
• Peeled Bars
• Bright Bars
• Hot Rolled Bars
• Cut-to-Length Pieces

Available diameters and lengths upon request.

Inspection & Certification

Material can be supplied with:

• EN 10204 3.1 Inspection Certificate
• Positive Material Identification (PMI)
• Ultrasonic Testing (UT)
• Heat Treatment Records
• PED 2014/68/EU Documentation
• AD 2000 Documentation
• Customer-specific inspection requirements

International Designations

This material is also known as:

• EN 1.7729
• 20CrMoVTiB4-10
• Durehete® 1055
• Alloy T41
• EN 10269 20CrMoVTiB4-10
• High Temperature Bolting Steel
• Turbine Bolt Steel
• Creep Resistant Alloy Steel

Why Buy from WTE PowerSteel?

WTE PowerSteel specializes in supplying special alloy steels for demanding industrial applications.

Our advantages include:

• Material available from stock
• Fast quotation and delivery
• Worldwide shipping
• Full traceability
• European material origin
• Technical support
• Extensive experience with power generation, petrochemical and nuclear industries

Whether you need a single cut piece or a larger production quantity, our team will help you select the right material and ensure fast delivery.

Frequently Asked Questions

What is 1.7729 steel?

1.7729 (20CrMoVTiB4-10) is a high-temperature chromium-molybdenum-vanadium alloy steel with titanium and boron additions developed for components operating under high mechanical loads and elevated temperatures.

Is Durehete® 1055 equivalent to 1.7729?

Yes. Durehete® 1055 is the commercial trade name for the EN grade 1.7729 / 20CrMoVTiB4-10.

What is Alloy T41?

Alloy T41 is another designation commonly used for this creep-resistant high-temperature steel.

What temperature can 1.7729 withstand?

The material is designed for long-term service at temperatures up to approximately 570°C, depending on operating conditions and component design.

Do you stock 1.7729 round bars?

Yes. WTE PowerSteel stocks selected diameters of 1.7729 / 20CrMoVTiB4-10 +QT / Durehete® 1055 round bars. Please contact us for current stock availability.

Can you supply cut pieces?

Yes. We supply full-length bars as well as cut-to-length pieces according to customer requirements.

Which industries commonly use this material?

1.7729 is widely used by manufacturers of steam turbines, gas turbines, boilers, pressure vessels, petrochemical equipment and nuclear power components where high-temperature strength and creep resistance are required.