TOBO STEEL GROUP CHINA
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 10000 PCS per month |
| Delivery Time | 15- 20 work days |
| Packaging Details | In wooden case or according to client's requirement |
| Product name | U-bent Tubes |
| Material | S31803 |
| Standard | ASTM/ASME |
| Section Shap | Round/Square/rectangular |
| Packing and Shipping | In wooden case |
| Inspection | AS per client Spec |
| Brand Name | TOBO |
| Model Number | S31803 |
| Certification | SGS/BV/ABS/LR/TUV/DNV/BIS/API/PED |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | 10000 PCS per month |
| Delivery Time | 15- 20 work days | Packaging Details | In wooden case or according to client's requirement |
| Product name | U-bent Tubes | Material | S31803 |
| Standard | ASTM/ASME | Section Shap | Round/Square/rectangular |
| Packing and Shipping | In wooden case | Inspection | AS per client Spec |
| Brand Name | TOBO | Model Number | S31803 |
| Certification | SGS/BV/ABS/LR/TUV/DNV/BIS/API/PED | Place of Origin | China |
| High Light | Boiler 316L U Fin Tube ，S31803 316L U Fin Tube ，ASTM ASME U Fin Tube | ||
Boiler Heat Exchanger U-tube 316L Stainless Steel Boiler Tube 321 Thin Wall Heat Exchanger U-Shaped Fin Tubing
Nickel Alloy
Standard
· ASTM / ASME SB 336
· UNS 10276 (HASTELLOY C 276 )
· UNS 2200 (NICKEL 200 )
· UNS 2201 (NICKEL 201 )
· UNS 4400 (MONEL 400 )
· UNS 8020 (ALLOY 20 / 20) CB 3
· UNS 8825 INCONEL (825 )
· UNS 6600 (INCONEL 600 )
· UNS 6601 (INCONEL 601 )
· UNS 6625 (INCONEL 625 )
· UNS 5500(MONEL K500)
· UNS 8800(INCONEL 800)
· UNS 8810(INCONEL 800H)
Stainless Steel Tubes Size for Heat Exchanger
Inch to mm Chart
| Inches | Decimal | Millimeters |
| 1/16″ | .0625 | 1.59 mm |
| 1/8″ | .1250 | 3.18 mm |
| 3/16″ | .1875 | 4.76 mm |
| 1/4″ | .2500 | 6.35 mm |
| 5/16″ | .3125 | 7.94 mm |
| 3/8″ | .3750 | 9.53 mm |
| 7/16″ | .4375 | 11.11 mm |
| 1/2″ | .5000 | 12.70 mm |
| 9/16″ | .5625 | 14.29 mm |
| 5/8″ | .6250 | 15.88 mm |
| 11/16″ | .6875 | 17.46 mm |
| 3/4″ | .7500 | 19.05 mm |
| 13/16″ | .8125 | 20.64 mm |
| 7/8″ | .8750 | 22.23 mm |
| 15/16″ | .9375 | 23.81 mm |
| 1″ | 1.00 | 25.40 mm |
| 1 1/4″ | 1.25 | 31.75 mm |
| 1 1/2″ | 1.50 | 38.10 mm |
| 2″ | 2.00 | 50.80 mm |
Stainless Steel ubend :
ASTM A403 WP Gr. 304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L, 316TI, 316H, 304L
Carbon Steel ubend
ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.
Low Temperature Carbon Steel
ASTM A420 WPL3 / A420WPL6
Alloy Steel ubend
ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91
Duplex Steel ubend
ASTM A 815 UNS NO S 31803, S 32205, S 32760, S 32750
Copper Nickel
C70600(90:10), C71500(70:30), C71640.
2) U Bend Tube Minimum tube wall thickness in the bend part (T min)T(min) ≥ (SW × (2×R + D))/( 2× (R+D)
where: SW is smallest wall thickness
D Nominal outside diameter
R radius
3) U Bend Tube Radius tolerance
1) for R 100 mm +/- 3 mm
2) for R ≥ 100 mm +/- 5 mm
4). U bend Pipe Straightness tolerance max. 1,5 mm per 1 m
U Bend Tube ends: plain, vertically cut to the tube axis
U Bend Tube OD in mm can be bent upon agreement: 15.8 16.0 17.0 18.0 19.05 20.0 21.3 25.4 26.7 31.8 32.0 38.1mm
U bend Tube Initial Length
Maximum lengths of 27000mm can be supplied on request
Packing and Shipping
Package:Standard export carton packing.
Delivery time:stock 7-10 workign days after confirming order,detail delivery date should be decided according to
production season and order quantity.
TEST CERTIFICATE
Mill Test Certificate as per EN 10204 / 3.1
Advanced capabilities for U-bent tubes:
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company,Seller
Year Established:
1998
Total Annual:
3,000,000-10,000,000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicia... TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicia...
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