Seamless Steel Tube A213
ASTM A213 covers seamless ferritic and austenitic steel boiler,Boiler Tube, and heat-exchanger tubes for high temperature services, designated Grades T5, TP304, κλπ. Grades with letter H has highe creep-rupture strength compared with grades with no H. ASME SA213 seamless tubes are chrome moly Tubes with alloy element of chromium, molybdenum.
Seamless ferrites and austenitic alloy-steel boiler, super heater, and heat-exchangers tubes.
● Application: for boilers, super heaters, heat-exchangers.
● Size range: O.D.:12.7-114.3 mm W.T.: 1.65-10mm L.: 18000mm max.
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Περιγραφή
ASTM A213 Alloy Seamless Steel Pipe
ASTM A213 covers seamless ferritic and austenitic steel boiler,Boiler Tube, and heat-exchanger tubes for high temperature services, designated Grades T5, TP304, κλπ. Grades with letter H has highe creep-rupture strength compared with grades with no H. ASME SA213 seamless tubes are chrome moly Tubes with alloy element of chromium, molybdenum.
Grand supplies ASTM A213 Low Alloy Steel Tubes of all grades and dimensions. We also keep stock of ASTM A213 seamless tubes of Alloy Steel:T2, T11, Σ12, T22, T91, T92 in annealed and pickled, φωτεινό ανόπτηση, mill finish and polished conditions according to customer requirements
ASTM A213 Steel Tubes Outside Diameter and Wall Thickness Tolerance
| OD, χιλ. | OD Tolerance |
|---|---|
| < 25.4 | +/- 0.10 |
| 25.4 – <= 38.1 | +/- 0.15 |
| > 38.1 -< 50.8 | +/- 0.20 |
| 50.8 -< 63.5 | +/- 0.25 |
| 63.5 -< 76.2 | +/- 0.30 |
| 76.2 – <= 101.6 | +/- 0.38 |
| > 101.6 – <= 190.5 | +0.38/-0.64 |
| > 190.5 – <= 228.6 | +0.38/-1.14 |
| OD, χιλ. | WT Tolerance |
|---|---|
| <= 38.1 | +20%/-0 |
| > 38.1 | +22%/-0 |
Table 1: Steel grade and chemical composition:
| Steel Grade | C | Μν | P | S | Σι | Cr | Mo |
| Max | Max | Max | Max | Max | Min | ||
| T5 | 0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.5 | 4.0-6.0 | 0.45-0.65 |
| T9 | 0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.0-10.0 | 0.90-1.10 |
| T11 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.0-1.50 | 0.44-0.65 |
| Σ12 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 | 0.80-1.25 | 0.44-0.65 |
| T21 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 2.65-3.35 | 0.80-1.06 |
| T22 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 | 1.90-2.60 | 0.87-1.13 |
Table 2: Mechanical property:
| Steel Grade | Tensile strength | Yield strength | Elongation | Hardness. Max | |
| Min ksi(Mpa) | Min ksi(Mpa) | % | Brinell/Cickers | Rockwell | |
| T5b | 60(415) | 30(205) | 30 | 179HBW/190HV | 89HRC |
| T9 | 60(415) | 30(205) | 30 | 179HBW/190HV | 89HRC |
| Σ12 | 60(415) | 32(220) | 30 | 163HBW/170HV | 85HRC |
| T91 | 85(585) | 60(415) | 20 | 250HBW/265HV | 25HRC |
| T92 | 90(620) | 64(440) | 20 | 250HBW/265HV | 25HRC |
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