| 产品名称 | 不锈钢焊管 | 标准： | ASTM A213， ASTM A249， ASTM A269， Etc. |
|---|---|---|---|
| 材料等级： | Stainless Steel 304， 304L， 310S， 316L， Etc. | OD： | 1/4′ ， 3/8'， 1/2'， 5/8'， 3/4'， 1'， 1.1/4'， 等等。 |
| WT： | BWG10，12，14，16，18，20，22，25 | 长度 | Single Random， Double Random， Cut Length |
| 形式 | 直形、U 形弯曲和线圈 | 表面： | 光亮退火 (BA)，酸洗和退火，抛光 |
| 申请： | Boilers And Heat Exchangers， Oil And Gas Equipment， Etc. | ||
| 强光 | TP316L 光亮退火管， Bright Annealed Stainless Steel Welded Tube， ASTM A249 Welded Bright Annealed Tube | ||
ASTM A249 / ASME SA249 TP316L BA Stainless Steel Welded Tube Heat Exchanger Tube
ASTM A249 is a standard specification for welded austenitic steel boiler， superheater， heat-exchanger， and condenser tubes. A249 stainless steel tubes are typically produced using either the electric-resistance-welding (ERW) or the automatic-welding (AW) process. The bright annealing process is used to produce a bright， reflective finish on the surface of the tube. 光亮退火不锈钢焊管广泛用于制造军工产品、半导体、生物医药、精密仪器仪表、液压件和许多其他工业产品。
ASTM/ASME SA249 TP316L Stainless Steel Welded Tube Equivalent Grade
| JIS | WNR./ DIN | UNS | AISI | EN | GB |
| SUS316L | 1.4404 | S31603 | 316L | 02Cr17Ni12Mo2 | 022Cr17Ni12Mo2 |
ASTM/ASME SA249 TP316L Stainless Steel Welded Tube Mechanical Properties
| Tensile Stress (Mpa) | Yield Stress (Mpa) | 伸长率 (%) | 伸长率 (%) | |
|---|---|---|---|---|
| SA 249 316L | 485 | 170 | 35 | 25 |
| 1.4404 | 490-690 | 190 | 40 | 30 |
ASTM/ASME SA249 TP316L Stainless Steel Welded Tube Chemical Composition
| SA 249 | C | 锰 | P | S | Si | 倪 | Cr | 莫 | N |
|---|---|---|---|---|---|---|---|---|---|
| 316L | 0.035 | 2.00 | 0.045 | 0.030 | 1.0 | 10-14 | 16-18 | 2-3 | |
| 1.4404 | 0.03 | 2.00 | 0.040 | 0.015 | 1.0 | 10-13 | 16.5-18.5 | 2-2.5 | 0.11 |
Other Stainless Steel Welded Tube 材料等级
| 美国标准 | TP304 ， TP304L ， TP310S ， TP316 ， TP316L ， TP316Ti ， TP321 ， TP347 ， 904L ， S31803 Etc |
| European Standard | 1.4301 ， 1.4306 ， 1.4845 ， 1.4401 ， 1.4404 ， 1.4571 ， 1.4541 ， 1.4550 ， 1.4539 ， 1.4462 Etc |
| German Standard | X5CrNi18-10 ， X2CrNi19-11 ， X12CrNi25-21 ， X5CrNi17-12-2 ， X5CrNi17-12-3 ， X2CrNiMo18-14-3 ， X6CrNiTi18-10 ， X6CrNiTb18-10 等 |
Purpose and advantages of bright annealing:
1) Eliminate work hardening and obtain satisfactory metallographic structure.
2) Obtain a bright， non-oxidizing and corrosion-resistant surface.
3) Bright treatment keeps the rolling surface smooth， and a bright surface can be obtained without post-treatment.
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Hydraulic Pressure Test
Uses and Applications
1. Common industrial services (Petroleum， chemical， paper， fertilizer， fabric， aviation and nuclear)
2. Fluid， gas and oil industry
3. Heat transmission and pressure service
4. Construction and ornamental
5. Boilers and Heat exchangers
6. Decoration purpose， boiler， auto parts， medical device， food industry， building materials)
