Stainless steel pipe fittings are widely used in daily life and industry, and are also one of the most common steel types. Common stainless steel codes include 304, 304L, 316/316L, etc.
First of all, 304 stainless steel is one of the most commonly used steel materials, with good corrosion resistance, heat resistance, high temperature strength, mechanical properties, etc. It has good stamping and bending heating properties, and no heat treatment hardening phenomenon. 316l: It is a stainless steel material grade, AISI 316L is the corresponding American grade, and sus 316L is the corresponding Japanese grade. my country's unified digital code is S31603.
2. Different content
1. 304: To maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 18% chromium and more than 8% nickel. 304 stainless steel is a grade of stainless steel produced according to the American ASTM standard.
2. 316l: It is a derivative steel of 18-8 type austenitic stainless steel, with 2-3% Mo element added. Based on 316L, many steel types are also derived, such as 316Ti after adding a small amount of Ti, 316N after adding a small amount of N, and 317L after increasing the content of Ni and Mo.
3. Different applications
1. 304: It has good processing performance and weldability. Plate heat exchangers, bellows, household goods (1, 2 types of tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, molded products), medical equipment, building materials, chemistry, food industry, agriculture, ship parts, etc. 304 stainless steel is a nationally recognized food-grade stainless steel.
2. 316l: 16 has better corrosion resistance and is more corrosion-resistant than 304 in high temperature environments. Therefore, in high temperature environments, engineers generally choose parts made of 316 materials.
