L290NB forged flanges 1.0484 steel forged flange EN1092-1 Steel forged flanges
Grade : | L290NB |
Number: | 1.0484 |
Classification: | Non-alloy quality steel |
Density: | 7.85 g/cm ³ |
Standard: | EN 10253-2: 2007 Butt-welding pipe fittings. Non alloy and ferritic alloy steels with specific inspection requirements | EN 10208-2: 2009 Steel pipes for pipelines for combustible fluids. Pipes of requirement class B. Technical delivery conditions | |
Chemical composition % of steel L290NB (1.0484): EN 10253-2-2007 C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Al | Cu | - |
max 0.17 | max 0.4 | max 1.2 | max 0.3 | max 0.025 | max 0.02 | max 0.3 | max 0.1 | max 0.05 | max 0.012 | max 0.05 | max 0.04 | 0.015 - 0.06 | max 0.25 | CEV < 0.42 |
Mechanical properties of steel L290NB (1.0484)
Rm - Tensile strength (MPa) | 415 |
Rt0.5 - Yield strength for 0.5% total elongation(MPa) | 290-440 |
KV - Impact energy (J) transverse, | 0° 40 |
KV - Impact energy (J) longitud., | 0° 60 |
A - Min. elongation at fracture (%) | 21-23 |
Equivalent grades of steel L290NB (1.0484) EU EN | USA - | Germany DIN,WNr |
L290NB | | |