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Description

UK B.S. BS EN 10028-7, BS EN 10088-1, BS EN 10088-2, BS EN 10088-3, BS EN 10088-4, BS EN 10088-5, BS EN 10216-5 (2004), BS EN 10217-7, BS EN 10253-3, BS EN 10253-4, BS EN 10272, BS EN 10296-2 (2005), BS EN 10297-2 (2005), 1.4439 Specialsteel Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 1.4439
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 1.4439 Austenite B.S. UK Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

Chemical composition(mass fraction)(wt.%) of the 1.4439

C Si Mn P S Cr Ni Mo N
≤0.03 ≤1.00 ≤2.00 ≤0.045 ≤0.015 16.50 -18.50 12.50 -14.50 4.00 -5.00 0.12 -0.22

Mechanical Properties of steel grade 1.4439

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)
185 (≥) 166 (≥) 32 41 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade 1.4439

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 - -     0.32 -  
551 774 - 12.3 211   -  
815 - 21 22.2   122 322

Heat Treatment of steel grade 1.4439

Heat treated : 1912°C - 1455°C

Technological Curves of steel grade 1.4439

Cross Reference Table (Equivalent Grade) of 1.4439

Grade Standard Country Application
X2CrNiMoN17-13-5
X2CrNiMoN17-13-5

Relevant standard of 1.4439

BS EN 10028-7 Flat products made of steels for pressure purposes - Part 7: Stainless steels BS-EN-10028-7.pdf
BS EN 10088-1 Stainless steels - Part 1: List of stainless steels BS-EN-10088-1.pdf
BS EN 10088-2 Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes BS-EN-10088-2.pdf
BS EN 10088-3 Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes BS-EN-10088-3.pdf
BS EN 10088-4 Stainless steels - Part 4: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes BS-EN-10088-4.pdf
BS EN 10088-5 Stainless steels - Part 5: Technical delivery conditions for bars, rods, wire, sections and bright products of corrosion resisting steels for construction purposes BS-EN-10088-5.pdf
BS EN 10216-5 (2004) Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5: Stainless steel tubes BS-EN-10216-5-(2004).pdf
BS EN 10217-7 Welded steel tubes for pressure purposes - Technical delivery conditions - Part 7: Stainless steel tubes BS-EN-10217-7.pdf
BS EN 10253-3 Butt-welding pipe fittings - Part 3: Wrought austenitic and austenitic-ferritic (duplex) stainless steels without specific inspection requirements BS-EN-10253-3.pdf
BS EN 10253-4 Butt-welding pipe fittings - Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements BS-EN-10253-4.pdf
BS EN 10272 Stainless steel bars for pressure purposes BS-EN-10272.pdf
BS EN 10296-2 (2005) Welded circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel BS-EN-10296-2-(2005).pdf
BS EN 10297-2 (2005) Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel BS-EN-10297-2-(2005).pdf

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