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ASME SA213 T5 Ferritic And Austenitic Seamless Alloy Steel Tubes For Boiler
ASME SA213 T5 is a specification for seamless ferritic and austenitic alloy steel tubes. These tubes are widely used in high-temperature services such as boilers, superheaters, and heat exchangers. Below is a detailed introduction to ASME SA213 T5 tubes:
1. Material Composition
Element
Composition (%)
Carbon (C)
0.15 Max
Manganese (Mn)
0.30–0.60
Phosphorus (P)
0.025 Max
Sulfur (S)
0.025 Max
Silicon (Si)
0.50 Max
Chromium (Cr)
4.00–6.00
Molybdenum (Mo)
0.45–0.65
The addition of chromium and molybdenum improves corrosion resistance, high-temperature strength, and oxidation resistance.
2. Manufacturing Process
Type: Seamless Tubes ASME SA213 T5 tubes are manufactured using a seamless process to ensure high strength and resistance to pressure.
Heat Treatment:
Fully annealed, normalized, or normalized and tempered.
Heat treatment improves grain structure, mechanical properties, and stress resistance.
3. Standards and Specifications
Standard: ASME SA213/ASTM A213
Grade: T5
Dimensions: Tubes are available in various sizes as specified by ASME standards:
Outer Diameter (OD): 1/8" to 5" (3.2 mm to 127 mm)
Wall Thickness (WT): 1 mm to 12 mm
Length: Random, fixed, or customer-specific lengths.
Tolerances: Tolerances for OD, wall thickness, and length are defined as per ASME standards.
4. Mechanical Properties
Property
Value
Tensile Strength
Min 415 MPa (60,000 psi)
Yield Strength
Min 205 MPa (30,000 psi)
Elongation
Min 30%
Hardness
Max 163 HBW (Brinell) or 85 HRB
5. Features and Benefits
High-Temperature Strength: Suitable for temperatures up to 650°C (1202°F), making it ideal for boiler and heat exchanger applications.
Corrosion Resistance: Chromium and molybdenum improve resistance to oxidation, pitting, and crevice corrosion.
Pressure Resistance: Seamless construction ensures the tubes can handle high internal pressures.
Long Service Life: The alloy composition ensures durability and long-term performance, even under harsh conditions.
6. Applications
ASME SA213 T5 tubes are primarily used in industries requiring high strength and corrosion resistance at elevated temperatures:
Boilers: Used in water tube and fire tube boilers for transferring heat under high-pressure conditions.
Superheaters: Withstand high temperatures and resist deformation in superheating environments.
Heat Exchangers: Efficient heat transfer in power plants and chemical processing industries.
Petrochemical Plants: Suitable for use in refineries and chemical processing units.
Power Generation: Essential in steam generation systems for thermal and nuclear power plants.
7. Quality Testing
ASME SA213 T5 tubes undergo rigorous testing to ensure performance and reliability, including:
Hydrostatic Testing: Verifies tube strength and leakage resistance.
Non-Destructive Tests (NDT): Includes ultrasonic and eddy current testing for flaws or defects.
Mechanical Testing: Tests for tensile strength, hardness, and elongation.
Chemical Analysis: Ensures compliance with composition specifications.
8. Advantages of ASME SA213 T5
Exceptional thermal and mechanical stability.
Compatibility with high-pressure and high-temperature environments.
Versatility across various industrial applications.
Excellent resistance to chemical corrosion and oxidation.
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
