List of Alloys & profiles

List of Alloys & profiles

Alloy Wire International

Datasheet: Stainless Steel 304

Stainless Steel 304

Stainless Steel 304 is the most widely used stainless steel, and like 302, it has good mechanical properties and corrosion resistance. This alloy can withstand attack in a range of corrosive media, and its durability makes it easy to sanitise, meaning it is ideal for kitchen and food applications.

Stainless Steel 304 is also known as AISI 304.

Available in all profile options

Stainless Steel 304 - Alloy Wire International 1

Key Features

Stainless Steel 304 offers the following key features:

Good mechanical properties and corrosion resistance.

Typical Applications

Stainless Steel 304 is known to be suitable for the following applications:

Springs
Engineered components
Wire mesh
Wire cloth
Hose braiding


Designations

W.NR 1.4301
W.NR 1.4307
UNS S30400
AWS 161

Specifications

ASTM A313
ASTM A580
BS 970
BS 2056

Chemical Composition

The chemical composition of Stainless Steel 304 is indicated in the table below:

ElementMin %Max %
C0.07
Mn2.00
P0.045
S0.030
Si1.00
Cr17.5019.50
Ni8.0010.50
FeBAL

Alloy Details

Stainless Steel 304 density, melting point, coefficient of expansion, modulus of rigidity, and elasticity is indicated in the table below:

DensityMelting PointCoefficient of ExpansionModulus of RigidityModulus of Elasticity
8.0 g/cm³1454 °C18.2 μm/m °C (20 – 100 °C)70.3 kN/mm²187.5 kN/mm²
0.289 lb/in³2650 °F10.1 x 10-6 in/in °F (70 – 212 °F)10196 ksi27195 ksi

Heat treatment of finished parts

The typical heat treatment of Stainless Steel 304:

Condition as supplied by AWITypeTemperatureTimeCooling
Annealed or Spring TemperStress Relieve250 °C (480 °F)1 HrAir

Properties

The typical mechanical properties of Stainless Steel 304:

Annealed
Approx. tensile strength<800 N/mm²<116 ksi
Approx. operating temperature-200 to +300 °C-330 to +570 °F
Spring Temper
Approx. tensile strength1300 – 2200 N/mm²189 – 319 ksi
Approx. operating temperature-200 to +300 °C-330 to +570 °F

The above tensile strength ranges are typical. If you require different please ask.