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OLT 45

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Romania STAS OLT45 Steels for seamless tubes for petroleum industry. Grades and technical requirements for quality and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: OLT45 / OLT 45
Category Grade Standard Region/Area Standard Content
Metals OLT 45 STAS 8185 Romania Steels for seamless tubes for petroleum industry. Grades and technical requirements for quality

Chemical composition(mass fraction)(wt.%) of the OLT 45

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0450 -
P - 0.0400 -
Ni - 0.3000 -
Mo - 0.0600 -
Mn 0.4000 0.8000 -
Cr - 0.3000 -
C 0.1700 0.2400 -

Mechanical Properties of steel grade OLT 45

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)
449 (≥) 915 (≥) 21 12 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade OLT 45

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
21 - -     0.22 -  
183 982 - 34.3 421   -  
899 - 44 14.2   341 212

Heat Treatment of steel grade OLT 45

Heat treated : 1751°C - 1986°C

Technological Curves of steel grade OLT 45

Cross Reference Table (Equivalent Grade) of OLT 45

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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