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ASTM A213 T5 seamless tube is a chromium-molybdenum alloy steel tube specified for boiler, superheater and heat-exchanger service. Grade T5 is identified as UNS K41545 and contains approximately 4.00-6.00% chromium and 0.45-0.65% molybdenum according to ASTM A213 requirements.
The Cr-Mo alloy composition provides a combination of elevated-temperature strength and resistance to oxidation compared with conventional carbon steel tubing. The seamless construction is suitable for pressure-containing heat-transfer equipment where welded seams are not preferred.
The tubes can be supplied in hot finished or cold finished conditions according to the applicable specification and purchase requirements.
Technical Specifications
Item
Specification
Product
Alloy Steel Seamless Tube
Grade
ASTM A213 T5
UNS
K41545
Common Material Reference
15Mo3*
Material Type
Chromium-Molybdenum Alloy Steel
Standard
ASTM A213 / ASME SA213
Manufacturing
Seamless
Finish
Hot Finished / Cold Finished
Heat Treatment
According to ASTM A213
Outside Diameter
Customized
Wall Thickness
Customized
Length
Fixed / Random / Customized
End Type
Plain End / Beveled End
Surface
Mill / Customized
Testing
Hydrostatic or Nondestructive Electric Test
Inspection
Chemical, Mechanical, Dimensional and Visual
Certification
EN 10204 3.1 / 3.2 Available
Note: 15Mo3 should be presented as a related/commonly referenced designation rather than an automatic one-to-one equivalent of ASTM A213 T5. For projects requiring strict material equivalency, chemistry and applicable standard requirements should be verified.
For hot-finished tubes, the seamless forming process can be followed by sizing and heat treatment to achieve the required dimensions and mechanical properties.
Applications
Boiler Tubes - Used in selected boiler pressure-part applications operating at elevated temperatures.
Superheater Systems - Suitable for heat-transfer tubing exposed to elevated-temperature steam service.
Heat Exchangers - Applicable to industrial heat exchangers where Cr-Mo alloy steel is selected for elevated-temperature service.
Petrochemical Equipment - Can be used in selected refinery and petrochemical heating and heat-transfer equipment.
Power Generation - Used for components and heat-transfer systems in thermal power equipment where ASTM A213 alloy-steel tubing is specified.
ASTM A213 specifically covers seamless ferritic and austenitic alloy-steel tubes for boilers, superheaters and heat exchangers.
Product Advantages
Chromium-Molybdenum Alloy - The Cr-Mo composition of T5 provides improved elevated-temperature performance compared with conventional carbon steel tubing.
Seamless Construction - Seamless production eliminates a longitudinal weld seam and is suitable for pressure-containing heat-transfer applications.
Hot Finished Availability - Hot-finished tubes can be supplied for applicable sizes and wall thicknesses according to project requirements.
Custom Dimensions - Outside diameter, wall thickness, tube length and end preparation can be supplied according to customer specifications.
Project Inspection Support - Hydrostatic testing or nondestructive electric testing can be arranged according to the applicable ASTM A213 requirements. ASTM A213 also specifies tension, hardness, flattening and flaring tests for applicable tubing.
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...