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quality X10CrMoVNb9-1 High Temperature Steel 1.4903 Alloy Boiler Steel with Martensitic Structure and 650°C Resistance factory
quality X10CrMoVNb9-1 High Temperature Steel 1.4903 Alloy Boiler Steel with Martensitic Structure and 650°C Resistance factory
quality X10CrMoVNb9-1 High Temperature Steel 1.4903 Alloy Boiler Steel with Martensitic Structure and 650°C Resistance factory

X10CrMoVNb9-1 High Temperature Steel 1.4903 Alloy Boiler Steel with Martensitic Structure and 650°C Resistance

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seamless alloy steel tube

alloy steel seamless tubes

alloy steel pipe
Product Summary
X10CrMoVNb9-1 high temperature steel 1.4903 offers excellent resistance up to 650°C for power plants, pressure valves, and oil/gas/chemical industries. Certified to EN 1.4903/ASTM A387 with ultrasonic testing EN 10160 S2/E3 and ASTM A578 level C. Features min. 435 N/mm² yield strength and 580-760 N/mm² tensile strength.

Product Details

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X10CrMoVNb9-1 boiler steel pipe

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1.4903 alloy seamless pipe

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high temperature martensitic steel pipe
Product Description
X10CrMoVNb9-1 High Temperature Steel 1.4903 Alloyed Boiler Steel
X10CrMoVNb9-1 high temperature steel 1.4903 alloyed boiler steel is a martensitic material designed for high-temperature applications in demanding industrial environments.
Designations
  • ASTM / ASME plate: A/SA 387 gr.91
  • ASTM / ASME bar: A/SA 182 F91
  • ASTM / ASME pipe: A/SA 335 P91
  • W.stoff no: 1.4903
Application
Martensitic, high temperature steel. Main application fields include power plants, pressure valves, and oil, gas, and chemical industries. Excellent resistance to high working temperatures up to approximately 650°C.
Delivery Programme
Our plates are always manufactured according to EN 1.4903/X10CrMoVNB9-1 / ASTM A 387 / ASME SA 387 standards with ultrasonic testing according to both EN 10160 S2/E3 and ASTM A578 level C. The material is tempered at 770°C.
Chemical Composition
Element Range/Value
Al min. 0,040
C 0,08 - 0,12
Cr 8,00 - 9,50
Cu max. 0,30
Mn 0,30 - 0,60
Mo 0,85 - 1,05
N 0,030 - 0,070
Nb 0,06 - 0,10
Ni max. 0,30
P max. 0,020
S max. 0,005
Mechanical Properties
Property Value
Yield min. 435 N/mm²
Tensile 580 - 760 N/mm²
KV +20°C / 40J

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