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Stainless Steels

303 stainless steel (UNS S30300) is the free-machining grade of 304 with specific limits of sulfur added to produce free-machining characteristics for use in automatic machining operations. Type 303 is a non-magnetic austenitic stainless steel, which is non-hardenable by heat treatment. 303 SS is available in round, square, hex and flat bar shapes.


CHEMICAL  COMPOSITION
ASTMA582
UNSS30300
Type303
Carbon (%)0.15
Manganese  (%)2
Phosphorous  (%)0.2
Sulfur (%)0.15 min
Silicon, Max  (%)1
Chromium (%)17.0-19.0
Nickel (%)8.0-10.0
Molybden (%)--
Selenium (%)--
Other  Elements (%)--


SPECIFICATIONS

ASTM A582, QQ-S-764


304/304L stainless (UNS S30400) is the most common and widely used stainless steel. It is an austenitic stainless steel with non-magnetic properties in the annealed condition that offers good corrosion resistance to both chemical and atmospheric exposures, with a high resistance to oxidation. Type 304/304L has good forming and excellent welding characteristics. It is non-hardenable by heat treatment. SS type 304 is available in round, square, hex, and flat bar variety in addition to the sheet, plate, tube, pipe, and angle shapes.


CHEMICAL COMPOSITION
ASTMA276
UNSS30400
Type304
Carbon (%)0.08
Manganese  (%)2
Phosphorous  (%)0.045
Sulfur (%)0.03
Silicon, Max  (%)1
Chromium (%)18.0-20.0
Nickel (%)8.0-11.0
Molybden (%)--
Nitrogen (%)--
Other  Elements (%)--


SPECIFICATIONS

Bar/Shapes – ASTM A276, A479, QQ-S-763 

Pipe – ASTM A312 

Tube – ASTM A213, A269 

Sheet/Plate – ASTM A240



316/316L stainless (UNS S31600) is a chromium-nickel austenitic (non-magnetic) stainless steel with added molybdenum, which provides greater resistance to corrosion and pitting. It offers higher strength at elevated temperatures. It is non-hardenable by heat treatment. Similar to 304, SS 316 is available in the round, square, hex or flat bar and sheet, plate and angle shapes.

SPECIFICATIONS

Bar/Shapes – ASTM A276, A479, QQ-S-763

Sheet/Plate – ASTM A240


17-4 PH stainless steel (UNS S17400) is a precipitation hardenable, martensitic stainless steel that delivers an excellent combination of oxidation and corrosion resistance, and is comparable to 304 in most conditions or environments. Mechanical properties, such as strength and ductility, can be optimized with heat treatment. SS type 17-4 is available as a round bar.

SPECIFICATIONS

ASTM A564, Type 630, AMS 5643




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Nippon Titanium Metals Corporation

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Azuchimachi, Chuo-ku Osaka-shi,

Osaka, 541-0052 JAPAN

E-mail: info@nippontitanium.com


Sales Department

Tel: 81 (6) 6210-4293

Fax: 81 (6) 6210-4294

E-mail: sales@nippontitanium.com


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