ASTM A209, Standard Specification rau Seamless Carbon-Molybdenum Alloy-Steel Boiler thiab Superheater Tubes.
OD: 10mm ~ 203mm
WT: 2 0mm ~ 25mm
Ntev: 5.8-12m lossis raws li cov neeg siv khoom xav tau
Qib: ASTM A209 T1, ASTM A209 T1a, ASTM A209 T1b
Cov txheej txheem: Seamless
Kev siv:
1. Tsawg thiab nruab nrab siab siab thauj cov kav dej
2. Lub zog cog
3. Boiler raj
4. Petrochemical kev lag luam
Pob: Roj dipped los yog dub pleev xim rau saum npoo, ntim rau hauv seaworthy hnab, hexagonal bundled.
Tshuaj muaj pes tsawg leeg:
|
C |
Mn |
P |
S |
Si |
Mo |
|
|
T1 |
0.10-0.20 |
0.30-0.80 |
=0.025 |
=0.025 |
0.10-0.50 |
0.44-0.65 |
|
T1a |
0.15-0.25 |
0.30-0.80 |
=0.025 |
=0.025 |
0.10-0.50 |
0.44-0.65 |
|
T1b |
=0.14 |
0.30-0.80 |
=0.025 |
=0.025 |
0.10-0.50 |
0.44-0.65 |
Mechanical Properties:
|
Qib |
T1 |
T1a |
T1b |
|
Tensile zog min Ksi (Mpa) |
55(380) |
60(415) |
43(365) |
|
Yield zog Min Ksi (Mpa) |
30(205 |
32(220) |
28(195) |
|
Elongation hauv 2in lossis 50mm min% |
30 |
30 |
30 |
Kev kho cua sov:
Cov kav dej kub thiab cov txheej txheem txias yuav tsum tau kho thaum kub ntawm 650 degree? Tsawg kawg. Cov chaw tsim khoom tuaj yeem xaiv ua tiav annealing, isothermal annealing lossis normalizing ntxiv rau tempering. Qhov ntsuas kub tsawg kawg nkaus yuav tsum tsis txhob qis dua 650 degree.
