Alloy Steel T5 Tubes – ASTM A213 Gr T5 Alloy Steel Seamless Tubes Supplier
Welcome to ASC LLP – your trusted manufacturer, supplier, and exporter of premium Alloy Steel T5 Tubes. We supply high-quality ASTM A213 Gr T5 Alloy Steel Seamless Tubes to customers worldwide. Whether you need tubes for high-temperature services or critical industrial applications, our range of Chrome Moly T5 Seamless Tubes delivers exceptional strength, corrosion resistance, and reliability.
What are Alloy Steel T5 Tubes?
Alloy Steel T5 Tubes are seamless steel tubes made from alloy steel with chromium and molybdenum as key elements. The presence of chromium (Cr) increases hardness and corrosion resistance, while molybdenum (Mo) enhances strength and high-temperature performance. These tubes are used in industries like power generation, petrochemical plants, refineries, and boilers where high-pressure and high-temperature conditions exist.
The most commonly used specifications for these tubes are ASTM A213 / ASME SA213 T5 Alloy Steel SMLS Tubes, and they are also referred to as DIN 1.7362 Tubes and Alloy steel UNS K4154 Tubes in international markets.
Key Features of UNS K4154 Tubes
- High tensile strength
- Excellent heat resistance
- Good weldability and formability
- Superior corrosion and oxidation resistance
- High-pressure capability

Grades and Specifications of DIN 1.7362 Tubes
At ASC LLP, we supply ASTM A213 / ASME SA213 T5 Alloy Steel SMLS Tubes that meet international quality standards. Our tubes are manufactured with precision, using the best raw materials to ensure excellent performance.
Specifications:
- Standards: ASTM A213, ASME SA213
- Grade: T5
- UNS: K41545
- WERKSTOFF NR.: 1.7362
- Size Range: 1/8” NB to 24” NB
- Thickness: 1 mm to 12 mm
- Length: Single random, double random, and custom lengths
Advantages of Using Alloy steel UNS K4154 Tubes
- Long-lasting durability
- High resistance to heat and oxidation
- Superior performance under extreme conditions
- Easy to machine and weld
- Excellent strength-to-weight ratio
Types of Alloy Steel T5 Tubes We Offer:
1. Alloy Steel T5 Seamless Tubes are manufactured using advanced technology to deliver smooth finishes and accurate dimensions. These tubes are ideal for use in chemical industries, refineries, and power generation plants.
2. We offer high-quality Alloy Steel T5 Rectangular Tubes, which are widely used in structural applications and mechanical systems. These rectangular tubes provide excellent strength and structural stability.
3. Alloy Steel T5 Square Tubes are used in construction and manufacturing applications. These tubes have uniform thickness and smooth surfaces, making them suitable for a wide range of industrial purposes.
4. Chrome Moly T5 Seamless Tubes are made from chromium and molybdenum alloy, offering excellent resistance to heat and pressure. These tubes are ideal for use in boilers, superheaters, and heat exchangers.


International Standards and Equivalent Grades
Standard | Equivalent Grade |
ASTM A213 / ASME SA213 | T5 |
UNS | K41545 |
WERKSTOFF NR. | 1.7362 |
DIN | 1.7362 |
Schedule and Size Chart for DIN 1.7362 Tubes
Schedule | Outside Diameter (OD) (inches) | Wall Thickness (mm) |
SCH 40 | 1/8″ to 24″ | 2.24 to 14.27 |
SCH 80 | 1/8″ to 24″ | 3.02 to 20.62 |
SCH 160 | 1/8″ to 24″ | 3.81 to 30.96 |
SCH XXS | 1/4″ to 24″ | 4.83 to 38.89 |
Mechanical Properties of ASTM A213 Gr T5 Seamless Tubes
Property | Value |
Tensile Strength | Minimum 415 MPa |
Yield Strength | Minimum 205 MPa |
Elongation | Minimum 30% |
Hardness (Brinell) | Maximum 179 |
Chemical Composition of ASTM A231 Gr T5 Tube
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 |
Physical Properties of ASME SA213 T5 SMLS Tubes
Property | Value |
Density | 7.8 g/cm³ |
Melting Point | 1425°C – 1510°C |
Thermal Conductivity | 24.9 W/m·K at 100°C |
Electrical Resistivity | 0.44 µΩ·m at 20°C |
Modulus of Elasticity | 200 GPa |
Applications of ASTM A213 Gr T5 Seamless Tubes
Our UNS K4154 Tubes are used in a variety of industries due to their outstanding properties:
- Power plants
- Petrochemical industries
- Chemical industries
- Oil & gas refineries
- Heat exchangers
- Boilers and superheaters
- Aircraft and aerospace industries
- Construction and structural applications
Why Choose ASC LLP for Chrome Moly T5 Seamless Tubes?
- Top-Quality Products: We use high-grade raw materials to manufacture all our tubes.
- Customization: Tubes can be customized in size, length, and thickness as per client requirements.
- Competitive Prices: We offer the best pricing without compromising on quality.
- Fast Delivery: Our global network allows us to deliver products on time to any part of the world.
- Export Excellence: As a leading ASTM A231 Gr T5 Tube Exporter, we have a strong presence in international markets.
- Certification: All our products come with proper certifications and test reports.
If you are looking for reliable and top-quality Chrome Moly T5 Seamless Tubes, ASC LLP is your trusted partner. We are one of the most renowned ASTM A231 Gr T5 Tube Exporters and suppliers of Alloy steel UNS K4154 Tubes.
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality Alloy Steel T5 Tubes. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.