ASTM A789 Txuj yeeb nkab Specification.pdf
Tso lus
ASTM A789 specification yog dab tsi?
ASTM A789 yog tus qauv tshwj xeeb rau kev dav dav -lub hom phiaj seamless thiab weldable ferritic / austenitic (duplex) stainless hlau raj. Cov raj no yog tsim los rau cov ntawv thov uas xav tau kev tiv thaiv corrosion dav dav thiab kev ntxhov siab corrosion tawg, xws li cov khoom siv hluav taws xob thiab cov chaw corrosive. Txawm li cas los xij, cov hlau no feem ntau ua rau muaj qhov kub thiab txias, yog li kev siv ntev ntawm qhov kub siab tshaj 600℃F (315 degree) tsis pom zoo.
ASTM A789 Duplex Stainless Hlau Tubing Specifications
| Hom | Seamless Tubing |
|---|---|
| Specification | ASTM A789, ASME SA789 |
| Qib | UNS S31803, S32750, S32760 |
| Sab nraud txoj kab uas hla | 6-610 hli |
| Phab ntsa Thickness | 0.5 - 30 mm, Nruab Nrab Phab Ntsa lossis Phab Ntsa Yam Tsawg |
| Ntev | Tshwj xeeb lossis Rando, tus qauv 6000 mm ntev |
| Qhov xwm txheej | Annealing Pickling, Beight Annealing |
| Daim ntawv: | Round, Coiled Tubing |
| Daim ntawv thov | Thaum tshav kub kub Exchanger, boiler, dej, siab siab, Ornamental hom phiaj |
| Txoj kev tsim khoom | Txias Rolling, Txias Txias |
Duplex Stainless hlau sib npaug
| Lub npe hlau | Hlau Number | UNS | AISI |
|---|---|---|---|
| X2CrMnNiN21-5-1 | 1.4162 | S32101 | 2 101 xf |
| X2CrNiN23-4 | 1.4362 | S32304 | 2304 |
| X2CrNiMoN12-5-3 | 1.4462 | S31803/S32205 | 2205 |
| X2CrNiMoN25-7-4 | 1.4410 | S32750 | 2507 |
| X2CrNiMoCuEWN25-7-4 | 1.4501 | S32760 | Zeron 100 |
SA789 Duplex Steel Chemical Composition
| UNS npe | C | Mn | P | S | Si | Ni | Cr | Mo | N | Cu | Lwm tus |
|---|---|---|---|---|---|---|---|---|---|---|---|
| S31803 | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 4.5–6.5 | 21.0–23.0 | 2.5–3.5 | 0.08–0.20 | . . . | . . . |
| S32202 | 0.030 | 2.00 | 0.040 | 0.010 | 1.00 | 1.00–2.80 | 21.5–24.0 | 0.45 | 0.18–0.26 | . . . | . . . |
| S32205 | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 4.5–6.5 | 22.0–23.0 | 3.0–3.5 | 0.14–0.20 | . . . | . . . |
| S32550 | 0.04 | 1.50 | 0.040 | 0.030 | 1.00 | 4.5–6.5 | 24.0–27.0 | 2.9–3.9 | 0.10–0.25 | 1.50–2.50 | . . . |
| S32750 | 0.030 | 1.20 | 0.035 | 0.020 | 0.80 | 6.0–8.0 | 24.0–26.0 | 3.0–5.0 | 0.24–0.32 | 0.50 | . . . |
Mechanical Properties ntawm ASME SA789 Seamless Stainless Hlau Tubing
| Qib | Tensile zog, min., ksi [MPa] | Yield zog, min., ksi [MPa] | Hardness, Max Brinell | Elongation hauv 2 nti, lossis 50mm, min, % |
|---|---|---|---|---|
| S32205 | 95 [655] | 70 [485] | 290 | 25 |
| S31803 | 90 [620] | 65 [450] | 290 | 25 |
| S32550 | 110 [760] | 80 [550] | 297 | 15 |
| S32760 | 109 [750] | 80 [550] | 300 | 25 |
| S32750 | 116 [800] | 80 [550] | 310 | 15 |
ASTM A789 Stainless Hlau Tubing Thaum tshav kub kub kho
| UNS npe | Qhov kub thiab txias F [degree] | Quench |
|---|---|---|
| S31200 | 1920–2010 [1050–1100] | Kev txias txias hauv dej |
| S31260 | 1870–2010 [1020–1100] | Cia txias txias hauv huab cua lossis dej |
| S31500 | 1800–1900 [980–1040] | Cia txias txias hauv huab cua lossis dej |
| S31803 | 1870–2010 [1020–1100] | Cia txias txias hauv huab cua lossis dej |
| S32003 | 1850–2050 [1010–1120] | Cia txias txias hauv huab cua lossis dej |
| S32205 | 1870–2010 [1020–1100] | Cia txias txias hauv huab cua lossis dej |
| S32304 | 1700–1920 [925–1050] | Cia txias txias hauv huab cua lossis dej |
| S32506 | 1870–2050 [1020–1120] | Cia txias txias hauv huab cua lossis dej |
| S32520 | 1975–2050 [1080–1120] | Cia txias txias hauv huab cua lossis dej |
| S32750 | 1880–2060 [1025–1125] | Cia txias txias hauv huab cua lossis dej |
SA 789 Duplex Boiler Tubes Tso cai Variations hauv Dimensions
| OD (d) mm | PVAV % | POV mm | PVL mm | PVmiw% |
|---|---|---|---|---|
| d＜12.7 | ±15 | ±0.13 | (3, 0) | (30, 0) |
| 12.7 Tsawg dua lossis sib npaug rau d＜38.1 | ±10 | ±0.13 | (3, 0) | (20, 0) |
| 38.1 Tsawg dua lossis sib npaug rau d＜88.9 | ±10 | ±0.25 | (5, 0) | (20, 0) |
| 88.9 Tsawg dua lossis sib npaug rau d＜139.7 | ±10 | ±0.38 | (5, 0) | (20, 0) |
| 139.7 Tsawg dua lossis sib npaug rau d＜203.2 | ±10 | ±0.76 | (5, 0) | (20, 0) |
ASTM A789 Stainless Hlau Tubing kam rau ua
| Sab nraum Diam, In. [Mm] |
OD kam rau ua, Hauv. [Mm] |
Phab ntsa nruab nrab Hauv Phab Ntsa Thickness,% |
Yam tsawg kawg nkaus phab ntsa Hauv Phab Ntsa Thickness, %, Tshaj |
Yam tsawg kawg nkaus phab ntsa Hauv Phab Ntsa Thickness, %, Hauv qab |
Txiav Length, Hauv. [Mm], Tau |
Txiav Length, Hauv. [Mm], Sub |
Nyias phab ntsa Cov raj |
|---|---|---|---|---|---|---|---|
| Txog 1⁄2 [12.7], Excl | ±0.005 [0.13] | ±15 | 30 | 0 | 1⁄8 [3] | 0 | … |
| 1⁄2–11⁄2 [12.7–38.1], Excl | ±0.005 [0.13] | ±10 | 20 | 0 | 1⁄8 [3] | 0 | Tsawg dua 0.065 Hauv. [1.6 hli] Specified |
| 11⁄2 txog 31⁄2 [38.1–88.9], Excl | ±0.010 [0.25] | ±10 | 20 | 0 | 3⁄16 [5] | 0 | Tsawg dua 0.095 Hauv. [2.4 hli] Specified |
| 31⁄2 txog 51⁄2 [88.9–139.7], Excl | ±0.015 [0.38] | ±10 | 20 | 0 | 3⁄16 [5] | 0 | Tsawg dua 0.150 Hauv. [3.8 hli] Specified |
| 51⁄2 Rau 8 [139.7–203.2], Inc | ±0.030 [0.76] | ±10 | 20 | 0 | 3⁄16 [5] | 0 | Tsawg dua 0.150 Hauv. [3.8 hli] Specified |
ASTM A789 Tube Nqe List
| Khoom | Nqe hauv USD |
|---|---|
| ASTM A789 Tubing Loj: 1/2 ", 0.035" | US $15.00 |
| ASTM A789 Tubing Loj: 1 nti, 0.065 " | US $25.00 |
ASTM A789 Tube Test
Kev txheeb xyuas cov khoom zoo - PMI Test
Hardness Test
Intergranular Corrosion (IGC) Test
Micro thiab MacroTest
Mechanical Testing xws li Tensile ntawm Cheeb Tsam
Pitting Resistance Test
Flaring Test
Chemical Analysis – Spectro Analysis
Flattening Test
Dab tsi yog qhov txawv ntawm ASTM A790 thiab A789?
Qhov sib txawv tseem ceeb yog tias ASTM A789 npog seamless thiab welded ferritic / austenitic stainless hlau tubing rau kev pabcuam dav dav, feem ntau me me thiab siv rau cov hlab ntsha siab xws li cov khoom siv hluav taws xob, thaum ASTM A790 npog seamless thiab welded ferritic / austenitic stainless hlau yeeb nkab rau qhov loj dua thiab xav tau ntau dua corrosion. ASTM A790 tshwj xeeb yuav tsum tau siv cov duplex stainless hlau, qhov A789 tuaj yeem npog ob qho tib si austenitic thiab duplex stainless hlau.
