MBM Tubes is one of the renowned manufacturer, exporter, stockist, stock holder and supplier of a qualitative range of Stainless Steel 347 / 347H Boiler Tubes. SS 347 Boiler Tubes (also recognized as UNS S34700 and WNR 1.4550) is a columbium and tantalum stabilized austenitic chromium-nickel stainless steel and was developed to provide an 18-8 type alloy with improved intergranular-corrosion resistance.
SS 347H Boiler Tubes (also mentioned as UNS S34709 and WNR 1.4961) is stabilized against chromium carbide formation by the addition of columbium and tantalum. Meanwhile, these tubes are used for several applications such as in Aerospace, Chemical Processing, Oil & Gas, etc. Designed as per the national and international standard quality of raw materials, our SS Boiler Tubes are available in various and also in custom-made sizes and shapes at affordable rates to our esteemed clients.
Range : 6.35 mm OD upto 152.4 mm OD in 0.6 TO 10 mm thickness.
Form : Round, Square, Rectangular, Coil, U Tube, Pan Cake.
Wall Thickness : 0.50 mm TO 6.0 mm
End : Plain End, Bevelled End
Length : Single Random, Double Random & Required Length
Specifications : ASTM A / ASME SA213 A312
Types : Seamless / ERW / Welded
|Ni||09 - 13||09 - 13|
|Cr||17 – 20||17 - 19|
|C||0.08 max||0.04 - 0.08|
|Si||1 max||1 max|
|Mn||2 max||2 max|
|P||0.045 max||0.045 max|
|S||0.030 max||0.03 max|
|OTHER||Nb=10(C+N) - 1.0||8xC min - 1.00 max|
|Grade||347 / 347H|
|Tensile Strength (MPa) min||515|
|Yield Strength 0.2% Proof (MPa) min||205|
|Elongation (% in 50mm) min||40|
|Rockwell B (HR B) max||92|
|Brinell (HB) max||201|
ASTM A213 TP 347/347H Stainless Steel Boiler Tubes Packing
ASTM A312 TP 347/347H Stainless Steel Boiler Pipes Packing
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