Astm A269 quvurlari texnik xususiyatlari
HT PIPE taniqli ASTM A269 quvurlari yetkazib beruvchilaridan biri bo'lib, eng ko'p qirrali va keng qo'llaniladigan zanglamaydigan po'latdir.ASTM A269 zanglamaydigan po'lat quvurhar qanday ostenitik (300 seriyali) zanglamaydigan po'latlarning chuqurlashishi va korroziyasiga eng yaxshi qarshilikni ta'minlaydi. U juda egiluvchan, yuqori haroratlarda mukammal quvvatga ega. Bu kimyo, to'qimachilik va sellyuloza-qog'oz sanoatida va dengiz muhitida gidravlika va asbob quvurlari uchun ideal.
ASTM A269 / A269M standarti
ASTM A269 quvurlari umumiy xizmat ko'rsatish uchun mo'ljallangan, odatda, u uskunalar va asboblarda, shuningdek past yoki yuqori haroratli muhitda qo'llaniladi, shuning uchun ASME SA 269 quvurlari issiqlik uzatish uskunalari uchun ham ishlatiladi.
A269 zanglamaydigan po'lat quvur materiallari va navlari
ASME SA269 standartispetsifikatsiyalar quvur materiali zanglamaydigan po'latdan yasalgan oilalarda keng qo'llaniladigan Ostenitik zanglamaydigan po'latdan ekanligini ko'rsatadi, TP304, TP304L, TP316, TP316L, TP347, TP347H, TP321, TP321H, 904L navlari turli xil ilovalar uchun ideal materialdir.
ASTM A269 standart choksiz quvur kimyoviy tarkibi
| ASTM A269 choksiz quvurlar navlari | UNS | C | Mn | P | S | Si | Cr | Ni | Mo |
| ASTM A269 304 | S30400 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-11.0 | |
| ASTM A269 304L | S30403 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-13.0 | |
| ASTM A269 316 | S31600 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 11.0-14.0 | 2.0-3.0 |
| ASTM A269 316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
ASTM A269 Elektropolish quvurining mexanik xususiyatlari
| Material | Issiqlik | Harorat | Mustahkamlik chegarasi | Hosildorlik kuchi | Uzayish %, min |
| Davolash | Min. | Ksi (MPa), min. | Ksi (MPa), min. | ||
| º F(º C) | |||||
| ASTM A269 304 | Yechim | 1900 (1040) | 75(515) | 30(205) | 35 |
| ASTM A269 304L | Yechim | 1900 (1040) | 70(485) | 25(170) | 35 |
| ASTM A269 316 | Yechim | 1900(1040) | 75(515) | 30(205) | 35 |
| ASTM A269 316L | Yechim | 1900(1040) | 70(485) | 25(170) | 35 |
Astm A269 choksiz trubaning o'lchamlari, o'lchamlari va toleranslari
ASTM A269 zanglamas po'latdan yasalgan quvurlar o'lchov va devor qalinligi spetsifikatsiyalari bo'yicha mijozlar ehtiyojlariga, shuningdek, yanada talabchan ilovalar uchun issiqlik bilan ishlov berishga muvofiq ishlab chiqariladi. Umuman olganda, zanglamaydigan po'latdan yasalgan choksiz quvur API, ASTM va ASME joriy standartlariga muvofiq 1/2 "dan 8" NB gacha bo'lgan o'lchamlarda ishlab chiqariladi.
A249/A269 quvurlarining umumiy o'lchamlari
| O.D. | MM | DEVOR QALINLIGI | MM | UZUNLIKLAR | Baholar | Turi | XUSUSIYATLAR |
|---|---|---|---|---|---|---|---|
| 1/2" | 12.70 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
| 3/4" | 19.05 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
| 1" | 25.4 | 0.049" | 1.24 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
| 1" | 25.4 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
| 11/2" | 38.10 | 0.049" | 1.24 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
| 11/2" | 38.10 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
| 2" | 50.80 | 0.049" | 1.24 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
| 2" | 50.80 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
| 21/2" | 63.50 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
| 3" | 76.20 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
| 4" | 101.60 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
| 4" | 101.60 | 0.083" | 2.11 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
| 6" | 152.40 | 0.083" | 2.11 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
| 6" | 152.40 | 0.109" | 2.77 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
| 8" | 203.20 | 0.109" | 2.77 | 10′ – 20′ | 304/304L/316L | Payvandlangan | A249 / A269 / A270 |
Diametrli bardoshlik Astm A269 trubkasi
| NPS | ASTM A269 Tube OD tolerantligi | |||
|---|---|---|---|---|
| + | – | |||
| dyuym | mm | dyuym | mm | |
| 1/8~1 1 /2 > 1 1 /2~4 > 4~8 > 8~18 > 18~26 > 26~34 > 34~48 |
1/64(0.015) 1/32(0.031) 1/16(0.062) 3/32(0.093) 1/8(0.125) 5/32(0.156) 3/16(0.187) |
0.4 0.8 1.6 2.4 3.2 4.0 4.8 |
1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) |
0.8 0.8 0.8 0.8 0.8 0.8 0.8 |
Devor qalinligi bardoshliligi Astm A269 quvurlari
| NPS | ASTM A269 quvur bardoshliligi, % | |
|---|---|---|
| + | – | |
| 1/8-2 1 /2 | 20.0 | 12.5 |
| 3~18, t/D 5% dan kam yoki teng | 22.5 | 12.5 |
| 3~18, t/D> 5% | 15.0 | 12.5 |
| 20 dan katta yoki teng, payvandlangan | 17.5 | 12.5 |
| 20 dan katta yoki teng, choksiz, t/D 5% dan kam yoki teng | 22.5 | 12.5 |
| ≥ 20, seamless, t/D> 5% | 15.0 | 12.5 |
Astm A269 payvandlangan trubaning buzilmaydigan sinovi
Har bir trubka buzilmaydigan sinov yoki gidrostatik sinovdan o'tkazilishi kerak, ko'p hollarda buzilmaydigan sinov girdobli oqim yoki havo suv osti sinoviga tegishli.
