Weight % (all values are maximum unless a range is otherwise indicated)

Element	309	309S	309H
Cr	22.0-24.0	22.0-24.0	22.0-24.0
Ni	12.0-15.0	12.0-15.0	12.0-15.0
C	0.2 max	0.08 max	0.04-0.1
Mn	2.0 max	2.0 max	2.0 max
P	0.045 max	0.045 max	0.045 max
S	0.03 max	0.03 max	0.03 max
Si	0.75 max	0.75 max	0.75 max

309 and 309S are used exclusively for their high temperature oxidation resistance, excellent high temperature strength, along with their resistance to creep deformation and environmental attack. Some examples include, but are not limited to: ▪ Heating elements ▪ Aircraft and jet engine parts ▪ Heat exchangers ▪  Carburizing annealing products ▪ Sulfite liquor handling equipment ▪  Kiln liners ▪ Boiler baffles ▪ Refinery and chemical processing equipment ▪ Auto exhaust partsValues at 68°F (20°C) (minimum values, unless specified)

0.2% Offset Yield Strength		Ultimate Tensile Strength		Elongationin 2”	Hardness
Psi(min)	Mpa	Psi(min)	Mpa	%	HBN (max)
45,000	310	85,000	586	50	202

309/309S/309H stainless steel strip sizes and specifications
Grade	309/309S/309H
Cold rolled stainless steel strip	Thickness: 0.3mm- 3.0mm, Width: 5mm - 900mm,Surface: 2B/BA/SB/8K/HL/1D/2D etc
Hot rolled stainless steel strip	Thickness: 3.0mm - 16mm, Width: 10mm - 900mmSurface: No.1/pickling
Stainless steel foil	Thickness: 0.02mm- 0.2mm, Width: Less than 600mm, Surface: 2B
Standard	ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303,  BS 1449, DN17441, G4305

 

309/309S/309H stainless steel coil sizes and specifications
Grade	309/309S/309H
Cold rolled stainless steel coil	Thickness: 0.3mm- 3.0mm, Width: 1000mm - 2000mm,Surface: 2B/BA/SB/8K/HL/1D/2D etc
Hot rolled stainless steel coil	Thickness: 3.0mm - 16mm, Width: 1000mm - 2000mmSurface: No.1/pickling
Standard	ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303,   BS 1449, DN17441, G4305

 

309/309S/309H stainless steel pipe sizes and specifications
Grade	309/309S/309H
Stainless steel seamless pipe	Outside diameter: 4.0 - 1219mm, Thickness: 0.5 -100mm,Length: 24000mm
Stainless steel welded pipe	Outside diameter: 6.0 - 2800mm, Thickness: 0.3 -45mm,Length: 18000mm
Stainless steel capillary pipe	Outside diameter: 0.4 - 16.0mm, Thickness: 0.1 -2.0mm,Length: 18000mm
Stainless steel welded sanitary pipe	Outside diameter:8.0- 850mm, Thickness: 1.0 -6.0mm
Stainless steel seamless sanitary pipe	Outside diameter: 6.0- 219mm, Thickness: 1.0 -6.0mm
Stainless steel square pipe	Side Length: 4*4 - 300*300mm, Thickness: 0.25 - 8.0mm, Length: 18000mm
Stainless steel rectangular pipe	Side Length: 4*6 - 200*400mm, Thickness: 0.25 - 8.0mm, Length: 18000mm
Stainless steel coil pipe	Outside diameter: 0.4 - 16mm, Thickness: 0.1 - 2.11mm
Standard	American Standard: ASTM A312, ASME SA269, ASTM A269, ASME SA213, ASTM A213 ASTM A511 ASTM A789, ASTM A790, ASTM A376, ASME SA335, B161, SB163, SB338, SB667/668Germany Standard: DIN2462.1-1981, DIN17456-85, DIN17458-85·European Standard: EN10216-5, EN10216-2Japanese Standard: JIS G3463-2006, JISG3459-2012Russian Standard: GOST 9941-81

 

309/309S/309H stainless steel plate sizes and specifications
Grade	309/309S/309H
Cold rolled stainless steel plate	Thickness: 0.3mm- 16.0mm, Width: 1000mm - 2000mm,Length: as requirements, Surface: 2B/BA/SB/8K/HL/1D/2D etc
Hot rolled stainless steel sheet	Thickness: 3.0mm - 300mm, Width: 1000mm - 3000mmLength: as requirements, Surface: No.1/pickling
Standard	ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303,BS 1449, DN17441, G4305
Stainless steel plate	Thickness: 8.0mm - 300mm, Width: 1000mm - 3000mmLength: as requirements, Surface: No.1/pickling

309 can be easily welded and processed by standard shop fabrication practices.▪ ASTM/ASME: UNS S30900/S30908 ▪ EURONORM: FeMi35Cr20Cu4Mo2 ▪ DIN: 2.4660Heat uniformly at 1742 – 2192°F (950 – 1200°C). After hot forming a final anneal at 1832 – 2101°F (1000 – 1150°C) followed by rapid quenching is recommended.The alloy is quite ductile and forms in a manner very similar to 316. Cold forming of pieces with long-term exposure to high temperatures is not recommended since the alloy is subject to carbide precipitation and sigma phase precipitants.309 can be readily welded by most standard processes including TIG, PLASMA, MIG, SMAW, SAW and FCAW.