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BOILER TUBES

Production Range

Manufacturing Standards

External Diameter :
21.3 mm - 88.9 mm

Wall Thickness :
2.0 mm - 4.5 mm

Length :
7 m (standart).

TS 11004, DIN 17177, ASTM A-178, TS EN 10217

Special material is used in the manufacturing of the boiler tubes; the internal cover is taken, annealed and passed from 100% magnetic test (Eddy Current and Ultrasonic test).
It is delivered in 7 m length by varnishing

Change of the Flow Limit of Boiler Tubes

Steel		Wall Thickness mm	%0.2 Flow limit
Short display	Material No		200 ºC	250 ºC	300 ºC	350 ºC	400 ºC	450 ºC
Short display	Material No		N/mm² min.
Fe 37.8 Fe 42.8	1.0315 1.0498	£ 16 £ 16	185 205	165 185	140 160	120 140	110 130	105 125

The Mechanical Properties of Boiler Tubes

Çeliğin		Tensile Strength N/mm²	The flow limit up to 16 mm Wall Thickness is N/mm² min.	Breaking extension (L_º=5xd_º)
Short display	Material No			Longways %	Vertical min.%

Fe 37.8 Fe 42.8	1.0315 1.0498	360-480 410-530	235 255	25 21	23 19
The values given External Diameters £ 30 mm, Wall Thickness £ 3 pipes are 10 N/ mm² smaller.

Usage

Operating Pressure
Up to 63,5 mm External Diameters 80 bar – after 63,5 mm External Diameter 32 bar
Operating Temperature
max.450 ºC

Karadeniz Caddesi G-54 Sokak No : 19-21 Ferhatpaşa / Samandıra / İSTANBUL
TEL : +90216.471 21 61 pbx | FAX : +90216.471 21 66 | | bilginmetal@bilginmetal.com.tr