New Materials

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Astm A269 Tp304 Seamless Stainless Steel Tube, 4 -76.2mm Steel Tube

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Specifications
astm a269 tp304 seamless stainless steel tube?
ISO9001:2008?
1) Diameters: 4 -76.2mm?
2) W.T.: 0.4 - 2.5mm?
Raw material from PO

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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.

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Dimension tolerance comparison Chart |
OD(mm) | GB/T3639 | DIN2391(EN10305) | We can control | Our Advantage |
6-30mm | ±0.10mm | ±0.08mm | ±0.05mm | ±0.02mm |
31-40mm | ±0.15mm | ±0.15mm | ±0.05mm | ±0.03mm |
41-50mm | ±0.20mm | ±0.20mm | ±0.05mm | ±0.03mm |
51-60mm | ±0.25mm | ±0.25mm | ±0.08mm | ±0.03mm |
61-65mm | ±0.30mm | ±0.30mm | ±0.10mm | ±0.05mm |
Thick tolerance | ±0.12mm | ±0.10mm | ±0.05mm | ±0.03mm ? |
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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.
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ⅠOutside path in class deviation mm table 3 | ? | Outside path inⅡ class deviation mm table 4 |

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Outside path | Admission deviation |
<25 | ±0.10 |
≥25~38.1 | ±0.15 |
>38.1~50 | ±0.20 |
≥50~63.5 | 0.25 |
>63.5~76 | ±0.30 |
≥76~102 | ±0.40 |
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Outside path | Admission deviation |
≤10 | ±0.15 |
>10~32 | ±0.20 |
>32~50 | ±0.30 |
>50 | ±0.8% |
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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.