Stainless Steel Pipe Suppliers Stainless Steel Welded Tube Stainless Steel Tubes

Raw material from POSCO
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 3Outside path inⅡ class deviation mm table 4 Outside pathAdmission deviation<25±0.10≥25~38.1±0.15>38.1~50±0.20≥50~63.50.25>63.5~76±0.30≥76~102±0.40 Outside pathAdmission deviation≤10±0.15>10~32±0.20>32~50±0.30>50±0.8%
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 numberCard numberThe heat handles
Make degree
The anti- pulls the strength
MPaAccept defeat the strength
MPaExtension rate%Degree of hardnessHRB0Cr19N19304≥1010°C
Nasty and cold≥520≥20540≤9000Cr19Ni11304L" "≥480≥17540≤900Cr17Ni12M02316" "≥520≥20540≤900Cr17Ni14M02316L" "≥480≥17540≤900Cr18Ni11Ti321≥920°C
Nasty and cold≥520≥20540≤90