United Kingdom · B.S.

L 415 NB

BS EN 10253-2 — Butt-welding pipe fittings-Part 2：Non alloy and ferritic alloy steels with specific inspection requirements

Chemical composition

wt% · log scale
0.0010.010.1110Al0.015 – 0.06C0.21Cr0.3Cu0.25Mn1.6Mo0.1N0.012Nb0.05Ni0.3P0.025S0.02Si0.45Ti0.04V0.15V+Nb+Ti0.15
  • min – max range
  • typical value

Mechanical properties

value range by condition
Impact energy Kv/Ku≥40 JImpact energy Kv/Ku≥60 Jfittings +NYield strength Rp0.2415–565 MPaTensile strength Rm≥520 MPaElongation A≥20 %fittings +N, <= 16 mmYield strength Rp0.2415–565 MPaTensile strength Rm≥520 MPaElongation A≥20 %fittings +N, > 16 <= 40 mm

Chemical composition

ElementminmaxSimilarRemarks
Al0.0150.06
C0.21
Cr0.3
Cu0.25
Mn1.6
Mo0.1
N0.012
Nb0.05
Ni0.3
P0.025
S0.02
Si0.45
Ti0.04
V0.15
V+Nb+Ti0.15

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
fittings +N≥40 KV (0°C)；≥60 KV (0°C)
fittings +N, <= 16 mm415–565 or Upper Yield strength (ReH)≥520≥20 Long. direction
fittings +N, > 16 <= 40 mm415–565 or Upper Yield strength (ReH)≥520≥20 Long. direction