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T.69

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2T.68 T.72
#T-69

Description

UK B.S. BS T 69, T.69 Specialsteel Specification for cold drawn 18/10 chromium-nickel corrosion-resisting steel tube (titanium stabilized: 800 N/mm2) (weldable) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: T.69
Category Class Grade Standard Country Application
Steel GradesSpecialsteel T.69 B.S. UK Specification for cold drawn 18/10 chromium-nickel corrosion-resisting steel tube (titanium stabilized: 800 N/mm2) (weldable)

Chemical composition(mass fraction)(wt.%) of the T.69

C Si Mn P S Cr Ni Mo Ti
≤0.08 0.20 -1.00 0.50 -2.00 ≤0.035 ≤0.025 17.00 -19.00 9.00 -12.00 ≤ ≥ 5×C -0.70

Mechanical Properties of steel grade T.69

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)
593 (≥) 793 (≥) 23 42 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade T.69

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
11 - -     0.44 -  
857 566 - 41.3 111   -  
344 - 21 11.2   412 432

Heat Treatment of steel grade T.69

Heat treated : 1659°C - 1275°C

Technological Curves of steel grade T.69

Relevant standard of T.69

BS T 69 Specification for cold drawn 18/10 chromium-nickel corrosion-resisting steel tube (titanium stabilized: 800 N/mm2) (weldable) BS-T-69.pdf
2T.68 T.72
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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