Stainless Steel Welded Tubes for Auto (300 series)

- Nov 21, 2017 -

Basic Info

  • Model NO.: 300 series

  • Standard: ASTM, AISI, GB, DIN, EN

  • Certification: ISO, SGS

  • Technique: TIG

  • Outdiameter4mm -101.6mm: Thickness 0.4mm-3.0mm

  • Origin: China

  • Type: Stainless Steel Pipes

  • Grade: 300 Series

  • Shape: Round

  • Surface Treatment: Bright

  • 300 Series: Auto

  • Specification: ASTM A249 ASTM A269 ASTM A268 DIN17455.....

  • HS Code: 7306400000

Product Description

Raw material from POSCO

Stainless steel tube
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.

Outside path in class deviation mm table 3
Outside path inIIclass 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.
The machine function sees the table 5
table 5

Steel numberCard numberThe heat handles
Make degree

The anti- pulls the strength
Accept defeat the strength
Extension rate%Degree of hardnessHRB
Nasty and cold
00Cr19Ni11304L" "≥480≥17540≤90
0Cr17Ni12M02316" "≥520≥20540≤90
0Cr17Ni14M02316L" "≥480≥17540≤90
Nasty and cold

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