904L Stainless steelsink/gutter is a highly alloyed austenitic stainless steel with very low carbon content that resists corrosion well in dilute sulfuric acid and is designed for harsh corrosion conditions. It has high chromium content and sufficient nickel content. The addition of copper makes it have strong acid resistance, especially high resistance to chloride gap corrosion and stress corrosion cracking, and is not easy to appear corrosion spots and cracks. The pitting resistance is slightly better than other steel, with good machinability and weldability.

444 Stainless steelsink/gutter belongs to high alloy ferritic stainless steel, the steel has good pitting corrosion resistance, crevice corrosion, stress corrosion ability, has good resistance to intergranular corrosion and high temperature oxidation performance.

441 Stainless steelsink/gutter has high workability, weldability, corrosion resistance, low carbon content, in addition to the addition of stabilizing element Ti.

439 Stainless steel sink/gutter is on the basis of ordinary ferritic materials to reduce the content of carbon, at the same time adding Ti and other stabilizing elements, so that the steel resistance to intergranular corrosion, formability and weldability have been improved.

420J2 Stainless steel sink/gutter is Martensioned stainless steel for use after quenching and tempering. It has higher strength, hardness and hardenability, but its corrosion resistance and thermal stability below 700℃ is low. Cold working performance and welding performance is not good, after welding should be immediately heat treatment to prevent cracking. It has good machining performance in annealed state.

420J1 Stainless steel sink/gutter has certain wear resistance and corrosion resistance, high hardness, suitable for the ordinary requirements of stainless steel working environment. It has certain wear resistance and corrosion resistance.

410S Stainless steel sink/gutter is a martensitic stainless steel. 410S(13Cr) has good corrosion resistance and machining performance, for general purpose steel, cutting tool steel. 410S is a kind of steel that improves the corrosion resistance and formability of 410 steel.

409L Stainless steel sink/gutter ASTM standerd .409L stainless steel has excellent corrosion resistance, suitable for extending the life of the car and the lightweight of the car, and as a recyclable environmental protection material.

430 Stainless steel sink/gutter is a general steel with good corrosion resistance, good thermal conductivity than austenite, thermal expansion coefficient is smaller than austenite, heat resistance fatigue, add stabilizing element titanium, good mechanical properties of weld parts.