ASTM A213 Grade T21 Alloy Steel Seamless Tubes
ASTM A213 Grade T21 Specification
ASTM A213 Grade T21 Alloy Steel Seamless Tubes are Carbon Steel Tubes with subsequent addition of chromium, molybdenum and sometimes vanadium are known as chrome moly Tubes. ASTM Specification alloy steel Tubes are used for high temperature service applications. Seamless Alloy Steel Tubes according to ASTM A213 Grade T21 are reheated and furnished in full annlealed,isothermal annealed or normalised quenched and tempered condition. ASTM A213 Grade T21 Alloy Steel Seamless Tubes have a typical chemistry with additions of 2.65-3.35 Chromium and 0.80-1.06 Molybdenum. Bearing minimum tensile strength of 415 Mpa ASTM A213 Grade T21 Tubes have a minimum yield strength of 205 Mpa.
ASTM A213 Grade T21 Properties
Chemical Properties
| Carbon | Silicon | Manganese | Phosphorous | Sulphur | Molybdenum | Nickel | Chromium | Copper | Others |
|---|---|---|---|---|---|---|---|---|---|
| 0.05-0.15 | 0.50 max | 0.30-0.60 | 0.025 | 0.025 | 0.80-1.06 | – | 2.65-3.35 | – | – |
Mechanical Properties
| Yield Strength | Tensile Strength | Elongation A5 min | |||
|---|---|---|---|---|---|
| MPa min | ksi min | MPa min | MPa min | ksi min | Percentage |
| 415 | – | 60 | 30 | ||
Equivalent Designation
| DIN | EN | BS | NFA | ASTM | ASME |
|---|---|---|---|---|---|
| – | – | – | ASTM A213 Grade T21 | ASME SA 213 Grade T21 | – |
Materials
- Carbon Steel
- Alloy Steel
- Low Temperature Carbon Steel
- High Temperature Carbon Steel
- Low Temperature Alloy Steel
- High Temperature Alloy Steel
Types of ASTM A213 Grade T21 Alloy Steel Seamless Pipes
Pipes
Seamless Pipes
- Cold Drawn Seamless Pipes
- Hot Drawn Seamless Pipes
Welded Pipes
- Electric Resistance Welded(ERW) Pipes
- Continous Welded(CW) Pipes
- Submerged Arc Welded(SAW) Pipes
- Double Submerged Arc Welded(DSAW) Pipes
- Spiral Welded Pipes
- High Frequency Induction(HFI)
- Longitudinally Submerged Arc Welded(LSAW) Pipes
Tubes
Seamless Tubes
- Cold Drawn Seamless Tubes
- Hot Drawn Seamless Tubes
Welded Tubes
- Electric Resistance Welded(ERW) Tubes
- Continous Welded(CW) Tubes
- Submerged Arc Welded(SAW) Tubes
- Double Submerged Arc Welded(DSAW) Tubes
- Spiral Welded Tubes
- High Frequency Induction(HFI)
- Longitudinally Submerged Arc Welded(LSAW) Tubes
Hollow Sections
Pipes
- Boom Pipe
- Culvert Pipes
- Square Pipes
- Round Pipes
- Honed Pipes
Tubes
- Boom Tubes
- Culvert Tubes
- Square Tubes
- Round Tubes
- Honed Tubes
Delivery Executions of ASTM A213 Grade T21 Alloy Steel Seamless Pipes
Tube Ends
All tubes are supplied with clean, square cut ends.Deburring and/or chamfering can be carried out on request.
Tube surface
Tubes are supplied normally without anti-corrosive treatment, but anti-corrosive treatment is available and is carried out on request.
Protection
- Black and Bare
- External Varnished with Black or Clear LAcquer
Mill test certificate
- MTC is issued in accordance with EN 10204.
Packaging
ASTM A213 Grade T21 Alloy Steel Seamless Tubes are bundled as standard, with steel straps into hexagonal bundles with one end flush.Length sorting can be carried out on request. Tubes can also be bundled in multiples. Bundle weights are adjusted as requested by the customer. Each bundle contains tubes from a single cast/heat only.
Marking
ASTM A213 Grade T21 Alloy Steel Seamless Tubes is marked with tube type, heat number, steel grade and size. Information is repeated along the whole length of the tube. Other markings, such as stamping, can be made on request. Bundles are also labeled with a tag having info both alphanumeric and by bar code.
Labelling
ASTM A213 Grade T21 Alloy Steel Seamless Tubes delivered direct from our mill is labeled in accordance with automotive standard, ie with both alphanumeric and bar code information. Customer specific data can be added on request.
Dimensional Standards of ASTM A213 Grade T21 Alloy Steel Seamless Pipes
FEDERAL
WWP-404c is similar to ASTM A-53 except that Government inspection and continuous identification marking of electric weld and seamless is mandatory. It covers black and galvanized welded and seamless pipe for flanging, bending, and coiling and for use with fresh water, oil, steam, air, and gas on shore plus a limited number of shipboard uses. Sizes 1/8 inch through 24 inch.WWP-406c is a federal specification comparable to ASTM A-120 (withdrawn 1988). Mills can certify that A-120 pipe in a distributor-s stock meets all the requirements of WWP-406c.
A.W.W.A.
C-200 covers black welded and seamless pipe intended for the conveyance of water in sizes 6 inch and larger. Specification prescribes hydrostatic test pressures for sizes of pipe covered. Tensile, flattening, and bending tests are required.
ASME
- B31.1 Code for pressure piping.plants, and industrial plants.
- B31.2 Fuel Gas Piping.
- B31.3 Petroleum Refinery Piping.
- B31.4 Liquid PetroleumTransportation Piping Systems.
- B31.5 Refrigeration Piping.
- B31.7 Nuclear Power Piping
- B31.8 GasTransmission and Distributing Piping Systems. Covers design, fabrication, installation, inspection, testing, and the safety aspects of operation and maintenance of gas transmission and distribution systems.
ANSI (ASME)
- B36.10 American Standard for Wrought-Steel and Wrought-Iron pipe. Designates dimensions, weights, and schedule numbers for welded and seamless pipe. Schedules 10 through Schedules Double Extra Heavy (DXH/XXH).
- B36.19 American Standard for Stainless Steel Pipe. Designates dimensions, weights, and schedule numbers for welded and seamless Stainless Steel Pipe, Schedules 5 through Schedules 80.
A.A.R.
- M-111 covers black and galvanized welded and seamless pipe intended for coiling, bending, flanging, and other special purposes and is suitable for welding. Purpose for which pipe is intended should be stated on orders. M-111 is comparable in most requirements to ASTM A-53.
- M-130 covers black and galvanized welded and seamless pipe for ordinary uses in steam, water, gas, and air lines. Sizes 1/8 inch through 12 inch. Pipe to this specification is not intended for close coiling, bending, or high temperature service. M-130 is comparable in most requirements to ASTM A-120.
ASTM A213 Grade T21 Alloy Steel Seamless Tubes are minimum-wall-thickness, seamless ferritic and austenitic steel, boiler and superheater tubes and austenitic steel heat-exchanger tubes, designated Grades T5, T11,T22,T91 etc. The tubing sizes and thicknesses usually furnished to ASTM A213 Grade T21 specification are 1-8 in. [3.2 mm] in inside diameter to 5 in. [127 mm] in outside diameter and 0.015 to 0.500 in. [0.4 to 12.7 mm], inclusive, in minimum wall thickness. A213 Tubes having other dimensions may be furnished & provided such tubes comply with all other requirements of this specification.
FerroPipE is considered as the most Reliable ASTM A213 Grade T21 Tubes Supplier from India.
ASTM A213 Grade T21 Alloy Steel Seamless Tubes stockist in Mumbai, India.Ferropipe stocks a complete range of IBR Certified ASTM A213 Grade T21 Alloy Steel Seamless Tubes in outer diameter tube sizes ½”-24” and Nominal bore NB sizes 15NB-600NB in Mumbai, India. Exporting Carbon Steel Pipes and Alloy Steel Pipes to countries worldwide including IRAN, IRAQ, KUWAIT, QATAR, South Africa, Nigeria, Saudi Arabia, Australia, Canada & Mexico.
In addition to the marking specified in Specification A 999/A 999M, the marking should have the length, an additional symbol -S-, if ASTM A213 Grade T21 Alloy Steel Seamless Tubes conforms to any of the Supplementary Requirements S1 to S6, the schedule number of the pipe is ordered to a schedule number viz. SCH 5,10,20,30,40,60,80,100,120,140,160,XS, XXS, STD, and the heat number of or manufacturer-s number by which the heat can be identified as per ASTM A213 Grade T21.
Wall Thickness : the minimum wall thickness at any point or end on ASTM A213 pipes and tubes shall not be greater than 12.5% under the nominal thickness specified.
Inner Diameter: For pipe ordered in inside diameter, the inside diameter shall not vary more than ñ 1% from the required/specified inside diameter.
The Manufacturer shall provide Material Test certificate of inspection to the purchaser stating that the material has been manufactured, sampled, tested, and inspected in accordance with ASTM A213 Grade T21( including year of issue), and has satisfied all the requirements of ASTM A213.
Pipes and Tubes manufactured as per ASTM A213 Grade T21 are certified with En 10204 Type 3.1/3.2. IBR,NACE,HIC,IGC,IMPACT are adhered as supplementary testing requirements.
The minimum elongation are computed values for each 1-32 in. [0.8 mm] decrease in wall thickness. Where the wall thickness lies between two values shown above, the minimum elongation value shall be determined by the following equations. For Grades 18Cr-2Mo, T91, and T92: E = 32t + 10.00 [E = 1.25t + 10.00]. For all other ferritic: E = 48t + 15.00 [E = 1.87t + 15.00].
where:LSE = elongation in 2 in. or 50 mm, %, and
t = actual thickness of specimen, in. [mm]
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