Chinese Professional 306 321 Stainless Steel Tubing - Ferritic Stainless Seamless tube – Donghao Metal Group Detail:
DMG’s Ferritic heat transferring tubing is produced to apply where better mechanical, hardness, chloride induced pitting, crevice and stress corrosion crocking may be considered. And the high quality tube with such material can be used for other specific applications as Heater, Heat exchanger, Condenser, Machining, Bearing, Machining, API Service….
Delivery Condition: Annealed & Pickled, Annealed & Pickled + Polished
Grades: TP405, TP430, TP439, TP444, TP446, Other grades can be offered on request.
Standards:
ASTM A268 Seamless and welded Ferritic and Martensitic Stainless steel Tubing for General Service
Outside diameter range from 12-76.2mm
Wall thickness range from 0.71-12mm
Inspection & Test:
1. 100% PMI / Chemical analysis tests.
2.100% Dimension tests & 100% Visual examination
3. Tension test, flange test, hardness test, flattening test
4. 100% Eddy Test or Hydrostatic Test before bending and 100% Hydrostatic test after bending
5. Checking stress released heat treatment in bending area plus 300mm straight leg length after bending with agreement with clients.
Notes: all the tests and inspection need to provide with reports according to standard and test results.
Length: Random Length / Fixed Length
Product detail pictures:

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Our staff are usually in the spirit of "continuous improvement and excellence", and while using the top-quality high-quality items, favorable value and superior after-sales services, we try to acquire each and every customer's belief for Chinese Professional 306 321 Stainless Steel Tubing - Ferritic Stainless Seamless tube – Donghao Metal Group, The product will supply to all over the world, such as: Melbourne , Istanbul , Angola , We have now a good reputation for stable quality goods, well received by customers at home and abroad. Our company would be guided by the idea of "Standing in Domestic Markets, Walking into International Markets". We sincerely hope that we could do business with car manufacturers, auto part buyers and the majority of colleagues both at home and abroad. We expect sincere cooperation and common development!

The customer service staff's answer is very meticulous, the most important is that the product quality is very good, and packaged carefully, shipped quickly!
