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Specifications
U-tube for condenserFeatures:
1) Materials: 304, 321, 316L, 304L, 316, and so on
2) Tube path: 6mm-31.8mm
Raw material from POSCO
stainless steel tube for heat exchanger,evaporater,condenser,cooler,boiler,muffler
Specifications:
1) Diameters: 4 - 76.2mm
2) W.T.: 0.4 - 2.5mm
3) Grades: 316L/304/304L/310S,etc.
4)standard:GB/ISO/EN/ASTM/JIS,etc.
5)application range:widely use in the foodstuff,medical equipment,power,boiler,cooler,auto,condenser etc.
6)packing: inner packing:1 pc/plastic bag;outer packing:bundles in weaving bags or in plywooden case.
1,Size accuracy
The outside path admission deviation that solder take care of includes the elliptical park a cent Ⅰ , Ⅱ two class, see the table 3, table 4.
| ⅠOutside path in class deviation mm table 3 | Outside path inⅡ class deviation mm table 4 | |||||||||||||||||||||||||||||
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The thick the deviation of admission( do not include the weld sew) in wall of the weld tube is for ruling the wall thick 10% of ±, but minimum admission deviation is the 0.02 mms of ±.
The weld takes care of of settle Chinese foot length as 3 ms~9 ms, general settle the Chinese foot with the 6 ms.
The weld takes care of of settle the Chinese foot length in usually length, its the deviation of admission is the 5 mms of ±.
Adopt partial the degree of flinch in a the tube of weldfor keeping the Chinese foot measurement should not very in 2.0 mms.
2,The machine function sees the table 5
table 5
| Steel number | Card number | The heat handles Make degree |
The anti- pulls the strength MPa |
Accept defeat the strength MPa |
Extension rate% | Degree of hardnessHRB |
| 0Cr19N19 | 304 | ≥1010°C Nasty and cold |
≥520 | ≥205 | 40 | ≤90 |
| 00Cr19Ni11 | 304L | " " | ≥480 | ≥175 | 40 | ≤90 |
| 0Cr17Ni12M02 | 316 | " " | ≥520 | ≥205 | 40 | ≤90 |
| 0Cr17Ni14M02 | 316L | " " | ≥480 | ≥175 | 40 | ≤90 |
| 0Cr18Ni11Ti | 321 | ≥920°C Nasty and cold |
≥520 | ≥205 | 40 | ≤90 |
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