Chemical Composition and Mechanical Property
Grade(材质) | C(%)(碳) | Si(%)(硅) | Mn(%)(锰) | P(%)(磷) | S(%)(硫) | Cr(%)(铬) | Ni(%)(镍) | N(%)(氮) | |
304 | ≤0.08 | ≤0.75 | ≤2.0 | ≤0.045 | ≤0.03 | 18.0-20.0 | 8.0-10.5 | ≤0.1 | |
304L | ≤0.03 | ≤0.75 | ≤2.0 | ≤0.045 | ≤0.03 | 18.0-20.0 | 8.0-12.0 | ≤0.1 | |
304H | 0.04-1.0 | ≤0.75 | ≤2.0 | ≤0.045 | ≤0.03 | 18.0-20.0 | 8.0-10.5 | ---- |
Grade(材质) | TS (Mpa)(抗拉强度) | YS (Mpa)(屈服强度) | El (%)(伸长率) | Hardness (HR)(密度) |
304 | ≥515 | ≥205 | ≥40 | ≥92 |
304L | ≥485 | ≥170 | ≥40 | ≥92 |
304H | ≥515 | ≥205 | ≥40 | ≥92 |
Technical(工艺) | Thickness(厚度) | Width(宽度) | Finish(表面) | Origin(产地) |
Cold rolled | 0.5mm-6.0mm | Standard size in China:1000mm 1219mm 1500mm. Special width:Can be order | 2B / No.4 /HL / BA / Mirror etc | TISCO / ZPSS / JISCO etc |
Hot rolled | 3.0mm-80.0mm | Standard width in China: 1219mm 1500mm 180mm 2000mm Special width:can be ordered | No.1 | TISCO / ZPSS / JISCO etc |
Applications
Applications for 304 material
Because 304 with good processing properties, high toughness characteristics, widely used in industrial and furniture industry and the medical industry food etc filed.What’s more 304 stainless is Suitable for food processing, storage and transportation,Plate type heat exchanger, corrugated pipe, household appliances (1, 2 kinds of tableware, kitchen cabinet, indoor pipeline, water heater, boiler, bath), auto parts (windshield wiper, muffler, mold), medical appliances, building materials, chemical, food industry, agriculture, marine parts etc..304 stainless steel is a nationally recognized food grade stainless steel.
Applications for 304L material
Usually 304L material with the same usage with 304 material.It’s the best choice for building material,decoration material and food industrial.But 304L with lower carbon content,so 304L is widely used in welding filed.
316/316L stainless steel
About 316 material:316 stainless steel by adding Mo element, the corrosion resistance, and high temperature strength has greatly improved, high temperature can reach 1200-1300 degrees, can be used in severe conditions.Corrosion resistance is better than 304 stainless steel, in pulp and paper production process has good corrosion resistance. And 316 stainless steel is also resistant to erosion of marine and corrosive industrial atmosphere.
About 316L material: 316L stainless steel has a carbon content of less than 316, which is commonly used in pulp and paper equipment heat exchangers, dyeing equipment, film washing equipment, pipelines, coastal areas outside the building materials. Corrosion resistance is better than 316 material.
About 201 /202 stainless steel
201 stainless steel is the most widely used in the 200 series. Because 201 stainless steel With"acid"and "alkali resistance"and"high density", "no bubbles", "no pinhole, polishing".
201 is the choice of all kinds of "watchcase", "watchband bottom”,"decorative tubes", "industrial tubes", and a plurality of products with shallow drawing etc.
Compared with 201 grade,the only difference with 201 is that the Nickle contenting,and with the same applications,characteristic etc.
309/309S stainless steel
309S is cutting stainless steel containing sulfur, the main requirements for cutting and surface finish high occasions. Widely used in important areas boilers, energy (nuclear power, thermal power, fuel cells), industrial furnaces, incinerators, furnaces, chemical, petrochemical, and other.
The only difference is that 309 stainless steel does not contain sulfur, and now basically produce steel 309S material. Both can be summed up as the same material.,have the same purpose.To some extent, the carbon content of 309S is lower than 309.