L415QB spectacle blind flanges EN1092-1 forged flanges 1.8947 steel forged flanges
Grade : | L415QB |
Number: | 1.8947 |
Classification: | Alloy special 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 L415QB (1.8947): EN 10253-2-2007 C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Al | Cu | - |
max 0.16 | max 0.45 | max 1.6 | max 0.3 | max 0.025 | max 0.02 | max 0.3 | max 0.1 | max 0.08 | max 0.012 | max 0.05 | max 0.04 | 0.015 - 0.06 | max 0.3 | V+Nb+Ti <0.15, CEV < 0.43 |
Mechanical properties of steel L415QB (1.8947)
Rm - Tensile strength (MPa) | 520 |
Rt0.5 - Yield strength for 0.5% total elongation(MPa) | 415-565 |
KV - Impact energy (J) transverse, | 0° 40 |
KV - Impact energy (J) longitud., | 0° 60 |
A - Min. elongation at fracture (%) | 18-20 |