A192 Seamless Carbon Steel Boiler Tubes rau siab -Kev Pab Cuam Siab
A192 siab- siab boiler raj yog seamless carbon steel raj tshwj xeeb tsim los rau siab - siab boiler systems. Lawv ua raws li ASTM A192 / ASME SA192 cov qauv thiab tsim nyog rau kev ua haujlwm siab tsawg dua lossis sib npaug li 9.8MPa thiab kub 450-650 degree. Lawv feem ntau yog siv rau hauv cov khoom tseem ceeb xws li boiler cua sov nto piping, superheaters, thiab economizers.
A192 seamless raj tuaj yeem tsim los siv cov txheej txheem ua haujlwm kub lossis txias. Kub- cov raj ua haujlwm yuav tsum tsis muaj kev kho cua sov, thaum txias- cov raj ua haujlwm yuav tsum tau kho cua sov ntawm 1200℃F (650 degree) lossis siab dua tom qab ua haujlwm txias kawg kom tshem tawm cov kev ntxhov siab sab hauv tsim thaum ua haujlwm txias, txhim kho lub raj microstructure thiab cov khoom siv kho tshuab, thiab txhim kho nws cov tawv nqaij thiab qaug zog.
Chemical Composition (%):
| C | Si | Mn | P | S |
|---|---|---|---|---|
| 0.06–0.18 | 0.25 max | 0.27–0.63 | 0.035 max | 0.035 max |
Mechanical Properities:
| Tensile zog (Mpa) | Yield zog (Mpa) | Elongation (%) | Hardness |
|---|---|---|---|
| 325 Min | 180 Min | 35 feeb | 77 Max |
ASTM A192 Seamless, Txias -Tiav Tubes Phab Ntsa Thickness kam rau ua
|
OD Hauv. (mm) |
Phab ntsa thickness kam rau ua% | |
|---|---|---|
| Tshaj (+) |
Hauv qab (-) |
|
| 1 ½ (38.1) thiab qis dua | 20 |
0 |
| Tshaj 1½ (38.1) | 22 |
0 |
ASME SA192 Txias -Tiav Seamless Tubes Sab Nraud Ntev Ntev
|
OD Hauv. (mm) |
Permissible Variations In. (mm) | |
|---|---|---|
| Tshaj (+) |
Hauv qab (-) |
|
|
Hauv qab 1 (25.4) |
0.004 (0.10) | 0.004 (0.10) |
|
1 txog 1 ½ (25.4 txog 38.1), Incl |
0.006 (0.15) | 0.006 (0.15) |
|
Tshaj 11⁄2 txog 2 (38.1 txog 50.8), Excl |
0.008 (0.20) | 0.008 (0.20) |
| 2 txog 21⁄2 (50.8 txog 63.5), Excl | 0.010 (0.25) |
0.010 (0.25) |
| 21⁄2 rau 3 (63.5 txog 76.2), Excl | 0.012 (0.30) |
0.012 (0.30) |
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