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L245NO/BNO

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China SY/T L245NO/BNO 海底管道用大口径无缝钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: L245NO/BNO / L245NO/BNO
Category Grade Standard Region/Area Standard Content
Metals L245NO/BNO SY/T 7044 China 海底管道用大口径无缝钢管

Chemical composition(mass fraction)(wt.%) of the L245NO/BNO

Element Min Max Similar
CEpcm - 0.2300 -
Cr - 0.3000 -
Mo - 0.3500 -
Ni - 0.5000 -
Cu - 0.3500 -
S - 0.0030 -
P - 0.0150 -
Mn - 1.3500 -
C - 0.1200 -
B - 0.0005 -
Mo - 0.1000 -
Cr - 0.3000 -
Ni - 0.3000 -
Cu - 0.3500 -
Pcm - 0.2200 -
CE - 0.3600 -
Ti - 0.0400 -
Nb+V+Ti - 0.1200 -
V+Nb - 0.0600 -
S - 0.0050 -
P - 0.0150 -
Mn - 1.3500 -
Si - 0.4000 -
C - 0.1400 -

Mechanical Properties of steel grade L245NO/BNO

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
129 (≥) 857 (≥) 42 42 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade L245NO/BNO

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
42 - -     0.31 -  
449 518 - 14.3 342   -  
268 - 31 11.2   213 121

Heat Treatment of steel grade L245NO/BNO

Heat treated : 1853°C - 1474°C

Technological Curves of steel grade L245NO/BNO

Cross Reference Table (Equivalent Grade) of L245NO/BNO

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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Jiangyou Longhai Special Steel Co.,Ltd.

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