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SEW 087 Grade WTSt 37-3: Normalized and Normalized Formed Steel for Structural Applications

WTSt 37-3 is used for welded, screwed and riveted constructions of different kind, e. g. structural engineering, bridge building, container construction. The steel is good weldable and formable.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.85 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

-100.0 °C

217 GPa

20.0 °C

212 GPa

100.0 °C

207 GPa

200.0 °C

199 GPa

300.0 °C

192 GPa

400.0 °C

184 GPa

500.0 °C

175 GPa

600.0 °C

164 GPa

Elongation

20.0 °C

25 %

Poisson's ratio

20.0 °C

0.28 [-]

Tensile strength

20.0 °C

340 - 490 MPa

Yield strength

20.0 °C

215 - 235 MPa

Yield strength Rp0.2

100.0 °C

186 MPa

200.0 °C

157 MPa

250.0 °C

147 MPa

300.0 °C

118 MPa

Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

-100.0 °C

1.08E-5 1/K

20.0 °C

1.19E-5 1/K

100.0 °C

1.25E-5 1/K

200.0 °C

1.3E-5 1/K

300.0 °C

1.36E-5 1/K

400.0 °C

1.41E-5 1/K

500.0 °C

1.45E-5 1/K

600.0 °C

1.49E-5 1/K

Specific heat capacity

-100.0 °C

423 J/(kg·K)

20.0 °C

461 J/(kg·K)

100.0 °C

479 J/(kg·K)

200.0 °C

499 J/(kg·K)

300.0 °C

517 J/(kg·K)

400.0 °C

536 J/(kg·K)

500.0 °C

558 J/(kg·K)

600.0 °C

587 J/(kg·K)

Thermal conductivity

20.0 °C

56.9 W/(m·K)

100.0 °C

56.4 W/(m·K)

200.0 °C

53.5 W/(m·K)

300.0 °C

49.4 W/(m·K)

400.0 °C

45.2 W/(m·K)

500.0 °C

41.3 W/(m·K)

600.0 °C

37.6 W/(m·K)

Thermal diffusivity

20.0 °C

15.7 mm²/s

100.0 °C

14.5 mm²/s

200.0 °C

12.9 mm²/s

300.0 °C

11.2 mm²/s

400.0 °C

9.6 mm²/s

500.0 °C

7.9 mm²/s

600.0 °C

6.3 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

1.83E-7 Ω·m

100.0 °C

2.27E-7 Ω·m

200.0 °C

2.95E-7 Ω·m

300.0 °C

3.8E-7 Ω·m

400.0 °C

4.81E-7 Ω·m

500.0 °C

5.99E-7 Ω·m

600.0 °C

7.38E-7 Ω·m

Chemical properties

PropertyValue

Aluminium

0.02 %

Carbon

0.13 %

Chromium

0.5 - 0.8 %

Copper

0.3 - 0.5 %

Manganese

0.2 - 0.5 %

Nitrogen

9E-3 %

Phosphorus

0.05 %

Silicon

0.1 - 0.4 %

Sulfur

0.035 %


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    1. EN 10225 S355G7 Steel – Normalized or Normalized Formed (N) for Superior Workability and Weldability
    2. EN 10225 S355G8 Steel – Normalized or Normalized-Formed (+N) Grade
    3. SEW 087 Grade WTSt 37-2 – Normalized & Normalized Formed (+N) – High-Performance Structural Steel
    4. DIN 2394-2: Grade St 28 Steel – Normalized & Normalized Formed (+N) Properties
    5. EN 10273 Grade P460NH – High-Temperature Normalized Steel for Pressure Vessel Applications
    6. EN 10297-1 Grade C55Pb – Normalized/Normalized Formed Steel
    7. DIN 2395-3 St 37‑3 Precision Tubes – Normalized Grade for Automotive Applications
    8. EN 10216-2 Grade St 45.8: High‑Temperature Normalized Tube Steel (+N) for Seamless Tubes
    9. EN 10217-2 Grade St 37.8: High‑Temperature Normalized Tube Steel for Industrial Use
    10. EN 10217‑2 Grade St 42.8 Tube Steel – High‑Temperature Normalized Formed for Vessels & Petrochemical Use