ASME SA213 T9 Alloy Steel Seamless U Bend Tube Boiler Tube Condenser
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SA213 high-pressure boiler tube
Used for heating surface pipes of low and medium pressure boilers (with a working pressure generally not exceeding 5.88Mpa and a working temperature below 450 ℃); Heating surface pipes, economizers, superheaters, reheaters, and petrochemical industry pipes for high-pressure boilers (usually with a working pressure of 9.8Mpa or above and a working temperature between 450 ℃ and 650 ℃)
Dimensional tolerance
Steel pipe type | OD(D) | WT(S) | ||
cold-drawn pipe | Outer diameter(mm) | Allowable deviation(mm) | wall thickness(mm) | Allowable deviation(mm) |
>30~50 | ±0.3 | >3~20 | ±10% |
Mechanical
Standard | Grade | Tensile strength (MPa) | Yield strength (MPa) | Elongation rate (%) | Hardness |
GB3087 | 10 | 335~475 | ≥195 | ≥24 | / |
20 | 410~550 | ≥245 | ≥20 | / | |
GB5310 | 20G | 410~550 | ≥245 | ≥24 | / |
20MnG | ≥415 | ≥240 | ≥22 | / | |
25MnG | ≥485 | ≥275 | ≥20 | / | |
15CrMoG | 440~640 | ≥235 | ≥21 | / | |
12Cr2MoG | 450~600 | ≥280 | ≥20 | / | |
12Cr1MoVG | 470~640 | ≥255 | ≥21 | / | |
12Cr2MoWVTiB | 540~735 | ≥345 | ≥18 | / | |
10Cr9Mo1VNb | ≥585 | ≥415 | ≥20 | / | |
ASME SA210 | SA210A-1 | ≥415 | ≥255 | ≥30 | ≤143HB |
SA210C | ≥485 | ≥275 | ≥30 | ≤179HB | |
ASME SA213 | SA213 T11 | ≥415 | ≥205 | ≥30 | ≤163HB |
SA213 T12 | ≥415 | ≥220 | ≥30 | ≤163HB | |
SA213 T22 | ≥415 | ≥205 | ≥30 | ≤163HB | |
SA213 T23 | ≥510 | ≥400 | ≥20 | ≤220HB | |
SA213 T91 | ≥585 | ≥415 | ≥20 | ≤250HB | |
SA213 T92 | ≥620 | ≥440 | ≥20 | ≤250HB | |
DIN17175 | ST45.8/Ⅲ | 410~530 | ≥255 | ≥21 | / |
15Mo3 | 450~600 | ≥270 | ≥22 | / | |
13CrMo44 | 440~590 | ≥290 | ≥22 | / | |
10CrMo910 | 480~630 | ≥280 | ≥20 | / |
A213 T9 Equivalent Material Grade
Grade | UNS | Steel Number | Trade Name |
T9 | S50400 | 1.7386 | 9Cr-1Mo |
Mechanical Properties
Grade | Tensile Strength, MPa | Yield Strength, MPa | Elongation, % | Hardness, HB |
T9 | 415 min | 205 min | 30 min | 179 max |
Chemical Composition
Grade | C≤ | Mn | P≤ | S≤ | Si≤ | Mo |
---|---|---|---|---|---|---|
T9 | 0.15 max | 0.30~0.60 | 0.025 | 0.025 | 0.25-1.0 | 0.90~1.10 |
Tolerance of SA213 T9 Steel Tubing
Outside Diameter | OD Tolerance | WT 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 |