Stainless steel pipe fittings are widely used in various structural parts, tools and mechanical parts. Compared with round pipes, stainless steel pipe fittings generally have larger moments of inertia and section modulus, have greater bending and torsion resistance, and can greatly reduce Structural weight, saving steel. Stainless steel elbow is also a kind of stainless steel pipe fittings, mainly to distinguish the shape of the pipe after forming, including U-shaped tube, J-shaped tube, S-shaped tube, 90-degree snake-head elbow, etc. Stainless steel special-shaped steel pipe is a general term for steel pipes with other cross-sectional shapes other than round pipes, including welded special-shaped pipes and seamless special-shaped pipes. Because of the material relationship, stainless steel pipe fittings are generally made of 304 or more materials, and the hardness of 200 and 201 materials is strong, which makes it more difficult to form.
