DIN 2391-2 Grade St 30 Al bright drawn hard

Want to keep this datasheet? Save it now in your required format


Seamless precision steel tube made from St 30 Al is mainly used as construction element with special requirements in dimension accuracy, small wall thicknesses and good surface condition. The tubes are made in different grades (A and C). Grade C is valid for conduits. Grade A: for mechanical load without special grade requirement, without inspection certificate Grade C: for special requirements (testing after arrangement, e.g. bending, flanging, bulging a.o.) The weldability is given. Application (acc. VdTÜV-Wbl 445 : 2001-09): pressure vessels acc. TRB 100 and AD-Merkblatt W 4 from -10 to 300 degrees C, for steam boilers acc. TRD 702, for tube parts acc. TRbF 131 and 212 analogical St 37.0 in DIN 1629 as well as in the nuclear engineering.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

See where falls on the material property chart for against in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.





23.0 °C

7.8 - 7.9 g/cm³

Show Material materials with Density of 7.8 - 7.9 g/cm³

Typical for Low Carbon Steel



Elastic modulus

23.0 °C

200 - 215 GPa

Show Material materials with Elastic modulus of 200 - 215 GPa

Typical for Low Carbon Steel


20.0 °C

8 %

Show Material materials with Elongation of 8 %

Poisson's ratio

23.0 °C

0.29 [-]

Show Material materials with Poisson's ratio of 0.29 [-]

Typical for Low Carbon Steel

Shear modulus

23.0 °C

82 GPa

Show Material materials with Shear modulus of 82 GPa

Typical for Low Carbon Steel

Tensile strength

20.0 °C

430 MPa

Show Material materials with Tensile strength of 430 MPa



Coefficient of thermal expansion

23.0 °C

1.32E-5 - 1.38E-5 1/K

Show Material materials with Coefficient of thermal expansion of 1.32E-5 - 1.38E-5 1/K

Typical for Low Carbon Steel

Max service temperature

500 °C

Show Material materials with Max service temperature of 500 °C

Typical for Carbon Steel

Melting point

1480 - 1526 °C

Show Material materials with Melting point of 1480 - 1526 °C

Typical for Low Carbon Steel

Specific heat capacity

23.0 °C

465 J/(kg·K)

Show Material materials with Specific heat capacity of 465 J/(kg·K)

Typical for Low Carbon Steel

Thermal conductivity

23.0 °C

25 - 93 W/(m·K)

Show Material materials with Thermal conductivity of 25 - 93 W/(m·K)

Typical for Low Carbon Steel



Electrical resistivity

23.0 °C

1.43E-7 - 1.74E-7 Ω·m

Show Material materials with Electrical resistivity of 1.43E-7 - 1.74E-7 Ω·m

Typical for Carbon Steel



Curie temperature

770 °C

Show Material materials with Curie temperature of 770 °C

Typical for Low Carbon Steel

Chemical properties



0.1 %

Show Material materials with Carbon of 0.1 %


0.55 %

Show Material materials with Manganese of 0.55 %


0.03 %

Show Material materials with Phosphorus of 0.03 %


0.05 %

Show Material materials with Silicon of 0.05 %


0.025 %

Show Material materials with Sulfur of 0.025 %