303 stainless steel rod VS 304 stainless steel rod
303 stainless steel rod VS 304 stainless steel rod
The difference in chemical composition, mechanical properties and usage of SUS303 stainless steel rod and SUS304 stainless steel rod
SUS303 stainless steel
SUS303 stainless steel is a free-cutting stainless steel containing sulfur, which is mainly used for free-cutting and high surface finish requirements.
SUS304 stainless steel is a universal stainless steel, it is widely used to make equipment and parts that require good comprehensive performance (corrosion resistance and formability).
Chemical composition of SUS303 stainless steel rod (%):
Applications: petroleum, electronics, chemical, pharmaceutical, textile, food, machinery, construction, nuclear power, aerospace, military and other industries!
Quality management: ISO9001: 2000 quality management system certification, production license, etc.!
Remarks: Stainless steel rods of various materials and specifications can be customized non-standard.
SUS303 stainless steel is a free-cutting stainless steel that contains sulfur and selenium, respectively, and is used in occasions that mainly require free-cutting and high surface gloss. 303 stainless steel improves cutting performance and high temperature resistance bonding performance. Most suitable for automatic lathes. Bolts and nuts.
SUS303 stainless steel is austenitic free-cutting stainless and wear-resistant acid steel.In order to improve the performance of the steel, no more than 0.60% of molybdenum can be added to the steel, which is resistant to ablation, and has good machinability and burning resistance. Corrosion resistance. SUS303 stainless steel mechanical properties after annealing to stress,
Mechanical properties of SUS303 stainless steel rod
SUS304 stainless steel rod grade: 0Cr18Ni9 (0Cr19Ni9)
Chemical composition(%)
SUS304 stainless steel is a universal stainless steel material, and its anti-rust performance is stronger than that of 200 series stainless steel materials. High temperature resistance is also better, as high as 1000-1200 degrees.
SUS304 stainless steel has excellent stainless corrosion resistance and good intergranular corrosion resistance.
In the experiment, it is concluded that nitric acid with a material concentration of SUS304 stainless steel ≤65% below the boiling temperature has strong corrosion resistance.
It also has good corrosion resistance to alkaline solutions and most organic and inorganic acids.
SUS304 (18Cr-8Ni) material: as a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; good hot workability such as stamping and bending, and no heat treatment hardening (non-magnetic, Then use temperature -196℃～800℃).
Uses: household products (category 1, 2 tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, molded products), medical appliances, building materials, chemicals, food industry, agriculture, and ship parts.
The difference in chemical composition, mechanical properties and usage of SUS303 stainless steel rod and SUS304 stainless steel rod
SUS303 stainless steel
SUS303 stainless steel is a free-cutting stainless steel containing sulfur, which is mainly used for free-cutting and high surface finish requirements.
SUS304 stainless steel is a universal stainless steel, it is widely used to make equipment and parts that require good comprehensive performance (corrosion resistance and formability).
Chemical composition of SUS303 stainless steel rod (%):
| Grade | C | Si | Mn | P | S | Cr | Ni |
| SUS303 | ≤0.15% | ≤1.00% | ≤2.00% | ≤0.20% | ≥0.15% | 17.00-19.00% | 8.00-10.00% |
Applications: petroleum, electronics, chemical, pharmaceutical, textile, food, machinery, construction, nuclear power, aerospace, military and other industries!
Quality management: ISO9001: 2000 quality management system certification, production license, etc.!
Remarks: Stainless steel rods of various materials and specifications can be customized non-standard.
SUS303 stainless steel is a free-cutting stainless steel that contains sulfur and selenium, respectively, and is used in occasions that mainly require free-cutting and high surface gloss. 303 stainless steel improves cutting performance and high temperature resistance bonding performance. Most suitable for automatic lathes. Bolts and nuts.
SUS303 stainless steel is austenitic free-cutting stainless and wear-resistant acid steel.In order to improve the performance of the steel, no more than 0.60% of molybdenum can be added to the steel, which is resistant to ablation, and has good machinability and burning resistance. Corrosion resistance. SUS303 stainless steel mechanical properties after annealing to stress,
Mechanical properties of SUS303 stainless steel rod
| Grade | Tensile strength | Yield Strength | Elongation | Hardness | ||
| SUS303 | ≥520 | ≥205 | 40 | ≤187HB | ≤90HRB | ≤200HV |
SUS304 stainless steel rod grade: 0Cr18Ni9 (0Cr19Ni9)
Chemical composition(%)
| Grade | C | Si | Mn | Cr | Ni | S | P |
| SUS304 | ≤0.07% | ≤1.0% | ≤2.0% | 17.0-19.0% | 8.0-11.0% | ≤0.03% | 0.035% |
SUS304 stainless steel is a universal stainless steel material, and its anti-rust performance is stronger than that of 200 series stainless steel materials. High temperature resistance is also better, as high as 1000-1200 degrees.
SUS304 stainless steel has excellent stainless corrosion resistance and good intergranular corrosion resistance.
In the experiment, it is concluded that nitric acid with a material concentration of SUS304 stainless steel ≤65% below the boiling temperature has strong corrosion resistance.
It also has good corrosion resistance to alkaline solutions and most organic and inorganic acids.
SUS304 (18Cr-8Ni) material: as a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; good hot workability such as stamping and bending, and no heat treatment hardening (non-magnetic, Then use temperature -196℃～800℃).
Uses: household products (category 1, 2 tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, molded products), medical appliances, building materials, chemicals, food industry, agriculture, and ship parts.
