Welding Austenitic Stainless Steel Pipe , U Bend Pipe Precision TIG Welding of stainless-steeltubes

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Welding Austenitic Stainless Steel Pipe , U Bend Pipe Precision TIG Welding

Categories	Stainless Steel Heat Exchanger Tube
Brand Name:	SPEZILLA
Model Number:	ASME SA688
Certification:	ISO9001:2008
Place of Origin:	CHINA
MOQ:	Negotiation
Price:	Negotiation
Payment Terms:	T/T, L/C
Supply Ability:	100 TONS / MONTH
Delivery Time:	WITHIN 30 DAYS
Packaging Details:	WOODEN BOXED
Product Name:	Stainless Steel U Tube
ASME Spec:	ASME SA688
Finish:	Bright Annealed
Type:	Welded
Material Grade:	TP304, TP304L
O.D.:	1/2'' - 1''
W.T.:	0.035'' - 0.120''
Package:	Wooden Boxed
Application:	Heat Exchanger

Spezilla Tube Co., Ltd. (Shanghai)

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Welding Austenitic Stainless Steel Pipe , U Bend Pipe Precision TIG Welding

Welding Austenitic Stainless Steel Tube U Bend Pipe For Feed Water Heater

Description:

Spezilla is profession on manufacturing welded stainless steel U bend tubes for feedwater heaters from 1/2'' (12.70mm) to 1'' (25.4mm).

Materials Specifications:

Austenitic Stainless Steel: TP304, TP304L, TP316L, TP321 etc.

Duplex Stainless Steel: UNS31803, 2205

Ferriticc Stainless Steel: TP409L, TP439, TP430 etc.

Specifications of Stainless Steel U Bend Tube:

U Bend Tubes produced to dimensional tolerances and finish requirements of ASTM and ASME A 249/SA 249, A 688/SA 688, and A 803/SA 803 specifications.

Manufacturing Process:

1. TIG Welding, Fully-Finished Tubing Mill

2. Drawing for High Pressure Feedwater Heaters

3. Stretch Straightener

4. Environmentally Friendly Bright Annealing

5. CNC Bending

6. Precision Stress Relief Anneal Station

7. Custom Stack-Rack Boxing

Quality Testing:

Spezilla performs extensive in-line QA testing including:

1. Eddy Current

2. Ultrasonic

3. Hydrostatic

4. Pressure Decay

5. Air Under Water After Bending

Size of Stainless Steel U Bend Tube:

ASME SA688, ASTM A688
Wall Thickness
OD	.035" (.889 mm)	.049" (1.245 mm)	.065" (1.651 mm)	.083" (2.108 mm)	.095" (2.413 mm)	.120" (3.048 mm)
1/2" (12.7 mm)	√	√	√	R/S	R/S	R/S
5/8" (15.875 mm)	√	√	√	√	R/S	R/S
3/4" (19.05 mm)	√	√	√	√	√	R/S
1" (25.4 mm)		√	√	√	√	√
R = Redrawn S = Seamless Depending upon bend radius, some inner tube rows may require an increase in wall thickness

Tolerance of Stainless Steel U Bend Tube:

Products	OD	Wall	Lengths and/or coils	Grades	OD	Wall	Lengths
Sizes				Standard Tolerances
Welded Austenitic Steel Boiler, Super Heater, Heat-Exchangers & Condenser Tubes Specifications: ASTM-A249, ASME-SA249, ASTM-A688, ASME-SA688	Metric sizes available	0.020" (0.51 mm) to 0.220" (5.59 mm)	Random or cut lengths up to 90' (27.4 m) Coils to 1-1/2" OD	304/304L/ 304LN/304H	Under 1" (25.4 mm) ±0.004" (0.10 mm) 1" (25.4 mm) to 1-1/2" (38.1 mm) ±0.006" (0.15 mm) >1-1/2" (38.1 mm) to 2" (50.8 mm) ±0.008" (0.20 mm) >2" (50.8 mm) to 2-1/2" (63.5 mm) ±0.010" (0.25 mm) >2-1/2" (63.5 mm) to 3" (76.2 mm) ±0.012" (0.30 mm) 3" (76.2 mm) to 4" (101.6 mm) ±0.015" (0.38 mm)	±10%	Randoms up to +2" (50.8 mm) Cuts +1/8" (3 mm) -0" Coils to 80,000' (24,384 m)

Applications & Markets:

1. Power Generation

2. Chemical

3. Petrochemical

4. Food

Product Tags:

u bend tube

welded finned tubes

Welding Austenitic Stainless Steel Pipe , U Bend Pipe Precision TIG Welding

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