Stainless Steel Properties and Uses

Series

（ASTM）

（GB）

Nature

Use

300

304

06Cr19Ni10

As a versatile steel with good corrosion resistance, heat resistance, low temperature strength and mechanical properties. Stamping, bending and other thermal processing, non-hardening heat treatment (non-magnetic, using the temperature -196 ℃ ~ 800 ℃).

Food industry, household items (1, 2, tableware, kitchen cabinets, indoor pipes, water heaters, boilers, bath)

304L

022Cr19Ni10

As 304 of the low C in the normal state, its corrosion resistance is similar to the 304, but, excellent ability of its resistance to intergranular corrosion after welding or eliminate stress. In the case of heat treatment, able to maintain good corrosion resistance, generally below 400 (non-magnetic, temperature -196 ℃ ~ 800 ℃)

Field applied to the grain boundary corrosion resistance of high chemical, coal, oil industry open-air machines, building materials, heat-resistant parts and heat treatment difficult parts.

321

06Cr18Ni11Ti

Ti element in the 304 steel to prevent corrosion of the grain boundary. Suitable for use in temperatures of 430 ℃ ~ 900 ℃.

Medical equipment, building materials, chemical, agriculture, ship parts, the atomic energy industry, aircraft, pipes, boiler drum auto parts (windshield wipers *, moldings)

316

06Cr17Ni12Mo2

Should be added Mo, corrosion resistance, resistance to atmospheric corrosion and high temperature strength is particularly good, and can be used in the harshness of the conditions. Hardening of excellent (non-magnetic)

Equipment, chemicals, dyes, paper in the sea. Oxalic acid, fertilizer and other production equipment; photography, food industry, coastal facilities, rope, CD rod, bolts, nuts.

316L

022Cr17Ni12Mo2

As the C Series of 316 steel, except for steel and 316 have the same features, its resistance to grain boundary corrosion.

316 iron and steel use, against the grain boundary corrosion afraid of products with special requirements.

309S

06Cr23Ni13

23Cr-13Ni stainless steel of high-alloy steel, excellent corrosion resistance and strength, suitable for parts of the operating temperature of 1000 °C.

Exhaust machine, heat treatment furnace and heat exchanger.

310S

06Cr25Ni20

Good oxidation resistance, corrosion resistance, heat resistance, because a higher percentage of chromium and nickel, 310S has much better creep strength, sustained operation at high temperatures, has good heat resistance.

Boilers, exhaust machine, heat treatment furnace and heat exchanger.

Series

（ASTM）

（GB）

Nature

Use

200

201

12Cr17Mn6Ni5N

With acid, alkali, high density, polishing no bubbles, no pinholes and other characteristics, is producing all kinds of case, band bottom cover high-quality materials.

Is mainly used for decoration pipes, industrial pipes, shallow stretch of the products.

202

12Cr18Mn9Ni5N

Mn and N instead of a part of nickel, in order to obtain good mechanical properties and corrosion resistance, the new stainless steel of a section of nickel, the intensity of his room temperature higher than 304, less than 800 degrees, good oxidation resistance and-temperature strength.

Is mainly used for decoration pipes, industrial pipes, shallow stretch of the products.

2205

00Cr22Ni5Mo3N

Cr, Mo and N elements in the interval than the narrow, easy to reach phase equilibrium (ie, two similar half and half), to improve the strength of steel, corrosion resistance and welding properties, used for the performance demanding and needs weldingmaterials such as oil and gas pipelines.

For oil refining, fertilizer, paper, petroleum, chemicals and seawater resistant high temperature concentrated nitric acid, such as heat exchangers and cold shower and devices.

400

409

022Cr11Ti

The cheapest models. Added Ti is its high-temperature corrosion resistance and good high temperature strength. Is a ferritic stainless steel (chrome steel)

Automobile exhaust pipes, heat exchangers, containers, etc. to be no heat treatment after welding.

410

12Cr13

Representatives of steel of the martensitic steel, high strength, but not suitable for use in the harshness of the corrosive environment. Processing and heat treatment surface hardening (magnetic).

Blade, machine parts, oil refining equipment, bolts, nuts, pump rod, a class cutlery (knives, forks).

420

20Cr13

After quenching, high hardness, good corrosion resistance (with magnetic).

Cutlery, blades, valves, board feet, turbine blade nozzle.

430

1Cr17

As representatives of the ferritic steel, steel, thermal expansion is low, formability, and excellent oxidation resistance.

Heat appliances, burning appliances, two classes of tableware, kitchen sink, external decoration materials, bolts, nuts, the CD rod, screen.

444

 019Cr19Mo2NbTi

High corrosion-resistant ferritic stainless steel, corrosion resistance comparable to 316 outstanding steel

Water tanks, water heaters, solar water heater collector panels.