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DIN Boiler Tubes

DIN Boiler Tubes

DIN Boiler Tubes

(OP)
May someone direct me to a source which let me have the both mechanical and chemical properties of Boiler Tubes according to ST 35.8 Grade I and ST 35.8 Grade III : DIN 2448, DIN 17175
Thanks !
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RE: DIN Boiler Tubes

DIN 17175  St 35.8

Pipe diameters < 63.5mm OD
Quality grade 1  Temp < 450°C Pressure < 80 bar
Quality grade 3  Temp > 450°C Pressure > 80 bar

Pipe diameters > 63.5mm OD
Quality grade 1  Temp < 450°C Pressure < 32 bar
Quality grade 3  Temp > 450°C Pressure > 32 bar

ST35.8  Number 1.0305  Yield 235 to 215N/mm2  depending on thickness.  UTS 360 to 480N/mm2

0.2% yield  at 200°C  175-185N/mm2/  300°C 130-140 / 450°C Max 105N/mm2

www.gowelding.com

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