Grade T12 pipes are only utilized in some extensive applications in the industries where high temperatures have to be employed. The pipes have been manufactured using similar standards as per ASTM A213, and the material used to manufacture these pipes is chromium-molybdenum alloy steel. These components improve their physical properties, providing them with increased tensile strength, anti-oxidation, and superior performance at elevated temperatures and pressure levels. Their minimum tensile strength is circa 415 Mpa and they have a yield strength of 205 MPa. Hence, they can be deployed in severe industrial environments such as those in power plants and refineries. Seamless pipes are preferable as it provides accurate measurements and can be effectively used at elevated pressures. At USA Piping Solution, ASTM A213 T12 pipes are provided with appropriate certification, uniform quality, and dependable scheduling of delivery throughout the USA.
Specification of ASTM A213 T12 Tubes
| Feature | Specification Details |
|---|---|
| Material Grade | T12 (UNS K11562) |
| Equivalent Materials | 13CrMo4-5, 1.7335, 13CrMo44, P12, 14CrMo3, 620-440, TU 13 CD 4-04 |
| Standards | ASTM A213, ASME SA213 |
| Equivalent Standards | EN 10216-2, GOST 550-75, WN 1.7335 |
| Type | Seamless (Standard & Large Diameter) |
| Size Range (Standard) | 6.35 mm OD to 101.60 mm OD |
| Outer Dimensions (General) | 6 mm - 2500 mm |
| Wall Thickness (WT) | 1 mm - 200 mm |
| Schedules | STD, SCH40, SCH80 (Range: 3 mm to 15 mm) |
| Length | 1 m - 12 m (Single Random, Double Random, or Cut Length) |
| Available Forms | Round, Square, Rectangular, Hydraulic, etc. |
| End Connections | Plain End, Beveled End, Threaded |
Chemical Composition of A213 T12 Tubes
| Element | C | Mn | P | S | Si | Cr | Mo |
|---|---|---|---|---|---|---|---|
| Content | 0.05-0.15 | 0.30-0.61 | 0.025 max | 0.025 max | 0.50 max | 0.80-1.25 | 0.44-0.65 |
ASTM A213 T12 Mechanical Properties
| Property | Tensile Strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|---|
| Value | 415 MPa min | 220 MPa min | 30% min | 163 HB max |
Tolerance Chart of ASTM A213 T12 Tubes
| Outside Diameter (OD) Range | OD Tolerance | WT (Wall Thickness) Tolerance | Ovality Tolerance | Cut Length Tolerance |
|---|---|---|---|---|
| OD <= 12.7 mm | +/-0.13 mm | +/-15% | - | +3.18 mm / -0 mm |
| 12.7 mm < OD <= 38.1 mm | +/-0.13 mm | +/-10% | max 1.65 mm | +3.18 mm / -0 mm |
| 38.1 mm < OD <= 88.9 mm | +/-0.25 mm | +/-10% | max 2.41 mm | +4.76 mm / -0 mm |
Different Types of ASTM A213 T12 Tubes
ASTM A213 T12 Seamless Tubes
Seamless chromium-molybdenum alloy steel tubes for boiler, superheater, and heat exchanger service.
ASME SA213 T12 Boiler Tubes
Certified SA213 T12 tubes supplied for high-temperature boiler and pressure equipment requirements.
Alloy Steel T12 Custom Tubes
Round, square, rectangular, hydraulic, cut-length, plain-end, beveled-end, and threaded options available.
ASTM A213 T12 Tubes Packaging
SA213 T12 alloy steel tubes are carefully packed to facilitate safe handling and delivery. The packaging techniques will depend on the customer needs and the type of product such as wooden boxes, crates, or bundled packing. Protective end caps are provided on each tube to ensure that no damage will occur during transit, and special caps may be supplied upon request. Labeling marks and shipping marks are properly labeled and documented and applied to the labeling to ensure that the labeling is done properly and is properly documented. At usapipingsolution, packaging is done with care so that the tubes are received by the customers in good condition.
T12 vs T11 vs T22 Comparison Table
| Parameter | ASTM A213 T11 Tube | ASTM A213 T12 Tube | ASTM A213 T22 Tube |
|---|---|---|---|
| Nominal Composition | 1.25Cr - 0.5Mo | 1Cr - 0.5Mo | 2.25Cr - 1Mo |
| Chromium Content | Higher than T12 | Moderate | Highest |
| Molybdenum Content | 0.44 - 0.65% | 0.44 - 0.65% | 0.90 - 1.10% |
| Creep Strength | Moderate | Balanced (better than T11) | High |
| Oxidation Resistance | Good | Good | Excellent |
| Temperature Service Range | Up to ~550 deg C | Up to ~580 deg C | Up to ~600 deg C+ |
| Mechanical Strength | Moderate | Moderate to High | High |
| Cost Level | Lower | Medium | Higher |
| Wall Thickness Requirement | Standard | Optimized | Can allow higher stress designs |
| Weldability | Good | Good | Moderate (requires control) |
| Typical Applications | Low to medium temp boilers, heat exchangers | Boilers, superheaters, reheaters, refinery units | High-temp boilers, pressure vessels, petrochemical plants |
| When to Select | Cost-sensitive, moderate temperature use | Balanced performance for mid-range temperature and pressure | High temperature, high pressure, and long-term creep resistance applications |
ASTM A213 Alloy Steel T12 Tubes Outside Diameter & Tolerances
| Manufacturing Process | Outside Diameter (mm) | Tolerance (mm) |
|---|---|---|
| Hot Rolled | OD <= 101.6 | +0.4 / -0.8 |
| Hot Rolled | 101.6 < OD <= 190.5 | +0.4 / -1.2 |
| Hot Rolled | 190.5 < OD <= 228.6 | +0.4 / -1.6 |
| Cold Drawn | OD < 25.4 | +/-0.10 |
| Cold Drawn | 25.4 <= OD <= 38.1 | +/-0.15 |
| Cold Drawn | 38.1 < OD < 50.8 | +/-0.20 |
| Cold Drawn | 50.8 <= OD < 63.5 | +/-0.25 |
| Cold Drawn | 63.5 <= OD < 76.2 | +/-0.30 |
| Cold Drawn | 76.2 <= OD <= 101.6 | +/-0.38 |
| Cold Drawn | 101.6 < OD <= 190.5 | +0.38 / -0.64 |
| Cold Drawn | 190.5 < OD <= 228.6 | +0.38 / -1.14 |
Wall Thickness and Tolerance Chart of ASTM A213 T12 Tubes
| Manufacturing Process | Condition (OD & WT) | Tolerance (%) |
|---|---|---|
| Hot Rolled | OD <= 101.6, WT <= 2.4 | +40 / -0 |
| Hot Rolled | OD <= 101.6, 2.4 < WT <= 3.8 | +35 / -0 |
| Hot Rolled | OD <= 101.6, 3.8 < WT <= 4.6 | +33 / -0 |
| Hot Rolled | OD <= 101.6, WT > 4.6 | +28 / -0 |
| Hot Rolled | OD > 101.6, 2.4 < WT <= 3.8 | +35 / -0 |
| Hot Rolled | OD > 101.6, 3.8 < WT <= 4.6 | +33 / -0 |
| Hot Rolled | OD > 101.6, WT > 4.6 | +28 / -0 |
| Cold Drawn | OD <= 38.1 | +20 / -0 |
| Cold Drawn | OD > 38.1 | +22 / -0 |
Industrial Application of ASTM A213 T12 Tubes
- Oil & Gas Industry
- Petrochemical Industry
- Chemical Processing Industry
- Energy / Power Generation Industry
- Heavy Engineering / Industrial Manufacturing
Related Alloy Steel Pipe Grades
- ASTM A335 P91 Pipes
- ASTM A335 P9 Pipes
- ASTM A335 P22 Pipes
- ASTM A335 P11 Pipes
- ASTM A335 P5 Pipes
- Boiler Tubes and Pipes
- Alloy Steel Pipes and Tubes
- ASTM A213 T92 Tubes
Frequently Asked Questions
What is the material of A213 T12?
ASTM A213 T12 is a chromium-molybdenum (Cr-Mo) alloy steel used for high-temperature boiler and heat exchanger tubes.
What is ASTM A213?
ASTM A213 is a standard specification for seamless alloy steel and stainless steel tubes used in high-temperature and high-pressure applications.
What is T12 metal?
T12 is a ferritic alloy steel grade (1Cr-0.5Mo) designed for moderate to high-temperature service with good strength and corrosion resistance.
What is the chemical composition of T12 grade?
T12 contains carbon, manganese, silicon, chromium (1.0-1.5%), and molybdenum (0.44-0.65%) along with small amounts of phosphorus and sulfur.
What is the price of ASTM A213 T12 Grade?
The price of ASTM A213 T12 tubes typically ranges from 500 to 2500 per ton, depending on size, thickness, and market conditions.