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Stainless Steel 304

stainlesssteel304

 

Grade 304 is the most versatile and widely used Stainless steel. It is available in a wider range of products, forms and finishes than any other.

The balanced austenitic structure of grade 304 means it can be severely deep drawn without intermediate annealing. It also has excellent forming and welding characteristics along with good corrosion resistance in a wide range of atmospheric environments.

Due to 304’s deep drawing qualities it has a number of wide ranging uses…

•Food processing equipment.
•Kitchen Benches, sinks, troughs, equipment and appliances
•Achitechtual panelling, railings and trim
•Chemical containers (including for transport)
•Heat exchangers
•Woven or welded screens for mining, quarrying & water filtration
•Threaded fasteners
•Springs

 

Stainless Steel 304 is available from us in bars, flats, hexagons and tubes in the following sizes…

Bar: 
From 1/8” dia – 16” dia

Flats: 
From 20mm x 10mm – 100mm x 12mm

Hexagon: 
0.3125” dia – 2.5” dia

Tube: 
6mm OD x 1.0mm wall - 50mm OD x 2.0mm wall

1/8mm OD x 25swg wall – 2mm OD x 16swg wall

 

 

Chemical & Physical Properties

Typical Chemical Composition

ElementsMin %Max %
C0.03
Cr18.020.0
Cu0.35
FeRemainder
Mn2.0
Mo0.35
N0.1
Ni8.012.0
P0.045
S0.03
Si0.75

Typical Mechanical properties

ElementsMin %Max %
C0.03
Cr1820
Cu0.35
FeRemainder
Mn2
Mo0.35
N0.1
Ni812
P0.045
S0.03
Si0.75

Tolerances

 

Tolerances on diameter, for general purposes.

 

Round Bar:

Between 10mm and 15mm= +/- 0.4mm

Between 16mm and 25mm= +/- 0.5mm

Between 26mm and 35mm= +/- 0.6mm

Between 36mm and 50mm= +/- 0.8mm

Between 52mm and 80mm= +/- 1.0mm

Between 85mm and 100mm= +/- 1.3mm

Between 105mm and 120mm= +/- 1.5mm

Between 125mm and 160mm= +/- 2.0mm

 

 

Tolerances on diameter, for precision purposes.

 

Round bar:

Between 10mm and 12mm= +/- 0.15mm

Between 13mm and 22mm= +/- 0.20mm

Between 24mm and 30mm= +/- 0.25mm

Between 32mm and 40mm= +/- 0.30mm

Between 42mm and 52mm= +/- 0.40mm

Between 55mm and 75mm= +/- 0.50mm

 

Tolerances on flat bar:

 

Width:

Between 10mm and 40mm= +/- 0.75mm

Over 40mm up to 80mm= +/- 1.0mm

Over 80mm up to 100mm= +/- 1.5mm

Over 100mm up to 120mm= +/- 2mm

Over 120mm up to 150mm= +/- 2.5mm

 

Thickness:

Up to 20mm= +/- 0.5mm

Over 20mm up to 40mm= +/- 1.0mm

Over 40mm up to 80mm= +/- 1.5mm

 

 

Straightness:

Below 1000mm2= a tolerance in the plane of below 0.4% of measuring length.

1000mm2 and above= a tolerance in the plane below 0.25% of measuring length.

Out-of-section:

Between 10mm and 25mm= 0.5mm

Over 25mm up to 40mm= 1mm

Over 40mm up to 80mm= 1.5mm

 

 

304 STOCK

 

 


 

 

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