1: Brief Introduction Of 304 Stainless Steel

304 a T-300 series stainless steel austenitic, which has a minimum of 18% chromium and 8% nickel. Type 304 has
a maximum carbon of 0.07% . It is the standard "18/8 stainless" that is commonly found in pans and cooking tools. Alloy
304 is the most versatile and widely used alloy in the stainless steel family. Ideal for a wide variety of home and commercial
applications, Alloy 304 exhibits excellent corrosion resistance and has a high ease of fabrication, outstanding formability.
The austenitic stainless steels are also considered to be the most weldable of the high-alloy steels and can be welded by
all fusion and resistance welding processes.
Corrosion Resistance:
★Resistance to moderately aggressive organic acids is a result of the 9 to 11% nickel that the 304 alloys contain.
★Resistance to corrosion in oxidizing environments is a result of the 18 to 19% chromium that the 304 alloys contain.
★The 304, 304L, and 304H may be considered to perform uniformly in most corrosive environments.
Heat Resistance:
★Continuous use of 304 in the 800-1580°F range is not recommended if subsequent aqueous corrosion resistance is
important.
Machinability:
★The use of chip breakers is advised since the chips can be stringy. Stainless steel work harden rapidly, heavy positive
feeds, sharp tooling, and a rigid set-up should be used.of cut below the work-hardened layer resulting from the previous
passes.
★Good oxidation resistance in intermittent service to 1600°F and in continuous service to 1690°F.
Standards:
ASTM/ASME: UNS S30400 / S30403
EURONORM: 1.4301 / 1.4303
AFNOR: Z5 CN 18.09 / Z2 CN 18.10
DIN: X5 CrNi 18 10 / X2 CrNi 19 11

Other Grades:
201,202,21-4N,301,302,301L,303,303Se,304,304L,304H,304LN,304N,305,S38400,308,309,309S,310,310s,
316,316L,316H,316Ti,316N,316LN,317,317L,317LMN,317LN,321,321H,347,347H,S3100,S31803,S3205,
S32304,S31200,S31260,S32507,405,409,429,430,430F,434,444,403,410S,410,416,420,420F,431F,440A
440B,440C,440F,610,630,631,632,635,660,Alloy 200,Monel 400 ,Alloy K-500 ,Inconel 600 , Incconel 601,
Inconel 625 , Inconel 718 , Alloy 800 ,Alloy 800H,Alloy 800HT,Inconel 825,Alloy 276, Alloy 20, Alloy 59