Payment & Shipping Terms:
|Tube Shape:||U Tube||Manufacturing:||Cold Drawn|
|Materials No.:||TP347||OD:||1/2'' - 2''|
|WT:||0.035'' - 0.083''||Surface:||SOLUTION ANNEALED|
SA213 TP347H Stainless Steel Seamless Tube U Bend Tube Cold Drawn Pickled
Type 347 stainless steel has slightly improved corrosion resistance over type 321 stainless steel in strongly oxidizing environments. Type 347 is stabilized with columbium, it is preferable for aqueous and low temperature environments due to its good resistance to intergranular attack. Both 347 and 321 offer good resistance to polythionic acid stress corrosion cracking, encountered in oil refineries. The high temperature oxidation resistance of 347 is similar to that of 304 stainless steel. Useful to 1500°F.
Stainless Steel Tube Standards:
ASTM A249: Standard specification for welded austenitic steel boiler,superheater, heat-exchanger and condenser tubes.
ASTM A269:Standard specification for welded austenitic stainless steel tubing for general service.
ASTM A688:Standard specification for welded austenitic stainless steel feedwater heater tubes.
ASTM A554:Standard specification for welded stainless steel mechanical tubing.
ASTM A268:Specification for seamless and welded Ferritic/Martensitic stainless steel tubing for General Service
ASTM A789:Specification for seamless and welded Ferritic/Austenitic stainless steel tubing for General Service
ASTM A312:Seamless/Welded austenitic stainless steel pipe
DIN17455:General purpose welded circular stainless steel tubes
DIN17457: Welded circular austenitic stainless steel tubes subject to special requirements; technical delivery conditions
EN 10217-7:Welded Steel Tubes for pressure purposes-Part 7 Stainless steel tubes
We are equipped to carry out heat treatment of bends plus a minimum 150mm of leg.
Heat Treatment Equipment
Seamless ferritic and austenitic alloy steel boiler, superheater, and heat exchanger tubes
|Carbon: 0.04-0.10||Silicon: 0.75 max|
|Manganese: 2.00||Nickel: 9.00-13.0|
|Potassium: 0.04||Chromium: 17.0-20.0|
|Sulfur: 0.03||Molybdenum: n/a|
Elongation in 2in. or 50mm, min. %: 35
Max. Hardness Rockwell B: 90
|Standard Dimensions - U-Bent Tube|
|Outside diameter||6 ÷90 mm||¼”÷3 ½”|
|Maximum overall length||1 ÷ 28 m||3 ÷ 92 ft|
|Bending Radius Min.||1,5 × tube diameter|
|Bending Radius Max.||1500 mm||4ft|
|Inspections and Tests - U-Bent Tube|
|Eddy Current Test|
|Dye Penetrant Test|
|Heat Treatment Conditions|
|Annealed (Bright Annealing)|
|Materials - U-Bent Tube|
|Carbon Steel||SA 179 / A 179|
|Carbon Steel||SA 210 / A 210|
|Carbon Steel||SA 334 / A 334|
|Stainless Steel||SA 213 / A 213|
|SA249 / A249|
|SA268 / A268|
|SA688 / A688|
|Duplex Stainless Steel||SA 789 / A 789|
|Copper & Cu Alloys||SB 111 / B 111|
|Titanium & Ti Alloys||SB 338 / B 338|
|For different materials please contact our sales department.|