Grades：409, 410,439, 444

Specifications：

ASME SA213 Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes

ASME SA731 Specification for Seamless, Welded Ferritic, and Martensitic Stainless Steel Pipe

GB/T 13296-2013 Seamless stainless steel tubes for boiler and heat exchanger

GB/T14976-2012 Stainless steel seamless pipes for fluid transport

Features：

1.High thermal conductivity

2.Low expansion coefficient

3.Good antioxidation property

4.Excellent stress corrosion resistance