ASME SA213 T9 Alloy Steel Seamless U Bend Tube for Boiler , Condenser , Heat Exchanger Application
ASME SA213 T9 Alloy Steel Seamless U Bend Tube for Boiler , Condenser , Heat Exchanger Application
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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 |
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