400 Series Ferritic - Alloys: TP405,TP409,TP430,TP439,TP444,TP446 is straight chromium alloy,magnetic but it is not heat treatable. This series is mainly used for automotive trim and cooking utensils.
400 Series Martensitic - Alloys: TP403,TP410/TP410S,TP420,TP431,is straight chromium alloy, magnetic and can be hardened by heat treatment. It is used for fasteners, pump shafts and turbine blades.
Standard: ASTM/ASME A/SA268：Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service. 
ASTM/ASME A/SA803：Welded Ferritic Stainless Steel Feed Water Heater Tubes. 

After negotiation, we can supply pipe with customers'requirement.

Martensitc Tube	Ferritic Tube	Marking	Packing

Advantage Material Grade:
TP405/1.4002 Tube TP409/1.4512 Tube TP410/1.4006 Tube 
TP430/1.4016 Tube TP439/1.4509 Tube TP444/1.4521 Tube TP446/1.4749 Tube

Size Range: