409 410High hardness Martensitic stainless steel industrial welded pipes This title comes first plus 409 410

High hardness martensitic stainless steel industrial welding pipe is mainly used for high strength and hardness applications, and requires a certain corrosion resistance. Martensitic stainless steel is named for its high hardness and strength after heat treatment, and is suitable for the manufacture of cutting tools, springs, bearings, valves, pump bodies and other parts.

product details

Raw material selection

Select high hardness martensitic stainless steel sheet or strip for ASTM A268 / A268M or EN 10297-2.

Molding

Process sheet or strip into pipe shape by cold rolling or cold drawing process.

Welding

Using TIG (tungsten pole argon arc welding) or MIG (metal inert gas protective welding). The welding parameters need to be strictly controlled during the welding process to ensure the weld quality.

Heat treatment

After welding, solid solution treatment and aging treatment may be required to restore the mechanical properties and corrosion resistance of the material.

Inspection and inspection

Conduct nondestructive testing of the welded pipe, such as ultrasonic detection, radiographic detection, etc., to ensure that the weld is without defects. Mechanical properties testing and corrosion resistance tests are performed simultaneously.

Surface treatment

According to the need, the welded pipe surface treatment, such as pickling, passivation, etc., to improve the corrosion resistance.

Packaging and delivery

Packaging qualified welded pipes to ensure no damage during transportation.

When selecting and using high-hardness martensite stainless steel welded pipes, their specific application environment and performance requirements should be considered to ensure the performance and safety of the materials. At the same time, the corresponding standards and specifications shall be followed to ensure the quality of the welded pipes.