Yuhong Holding Group Co.,LTD
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| Place of Origin: | CHINA |
| Brand Name: | YUHONG |
| Certification: | ISO9001-2008, API 5L, API 5CT |
| Model Number: | ASTM B444 |
| Minimum Order Quantity: | 10PC |
|---|---|
| Price: | 1-130000 USD |
| Packaging Details: | Ply-wooden Case /Iron Case/ Bundle With Plastic Cap |
| Delivery Time: | 10-75 days |
| Payment Terms: | T/T, L/C |
| Supply Ability: | 1500tons/month |
| Materialrd: | Nickel Alloy Steel | Product: | Bend U Tube |
|---|---|---|---|
| Standard: | ASTM B444 | Grade: | UNS NO6625 |
| Certificate: | ISO9001-2008, API 5L, API 5CT | Packing Details: | Ply-wooden Case /Iron Case/ Bundle With Plastic Cap |
ASTM B444 Nickel Alloy Steel UNS NO6625 SMLS Bend U Tubes
YuHong can offer ASTM B444 NO6625 seamless nickel ally steel bend U tubes and we sell these products with highest quality in more than 70 countries.
ASTM B444 This specification covers nickel-chromiummolybdenum-columbium alloys (UNS N06625 and UNS N06852) and nickel-chromium-molybdenum-silicon alloy (UNS N06219) in the form of cold-worked seamless pipe and tube.
UNS N06625 products are furnished in two grades of different heat-treated conditions:
Grade 1 (annealed)—Material is normally employed in service temperatures up to 1100°F (593°C).
Grade 2 (solution annealed)—Material is normally employed in service temperatures above 1100°F (593°C) when resistance to creep and rupture is required.
(Note 1:Hot-working or reannealing may change properties significantly, depending on working history and temperatures.)
U tubes are manufactured by bending straight tubes, the process bending is done cold on an automatic U-bend and to ensure tube wall thinning and diameter ovality are controlled, tube bending is accomplished with a mandrel inserted into the tube. Besides, the U-bend of the U-tube is stress relieved under controlled conditions and cycles for extended life.
Specifications
| Sizes / Thickness |
OD:0.25"-24" W.T:0.02"-2.5"
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| Manufacture | Tubes shall be made by the seamless process and Cold–Drawn, Annealed or Solution Annealed and Pickled (Not Ground) | ||||
| Heat Treatment |
Seamless tubing immediately following hot forming may be individually quenched in water or rapidly cooled by other means, provided that the temperature of the tubes after hot forming is not less than the minimum specifified solution temperature (direct
quenched)
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| Length | Required by clients | ||||
| Bending Radius | From 1.5*OD(Outside Diameter) To 1500mm, ≤1.5*OD,necessary To agree precision of geometrics | ||||
| Straight Tubes | max length 35000mm | ||||
Test Required Bend U tube
Chemical Analysis
Tension
Corrosion Test
Mechanical Tests: Flattening test, Flaring test, Flange test, Hardness Test and Hydrostatic test
Reverse-bend and Re. flat tests
Eddy Current Testing
Visual Inspection
Air Under Pressure Test
Chemical Composition UNS NO6625
| C | Mn | P | SI | S | Cr | Cb+Ta |
| 0.1max | 0.5max | 0.015max | 0.5max | 0.015max | 20-23 | 3.15-4.15 |
| Co | Mo | Fe | Al | Ti | Ni | / |
| 1max | 8-10 | 5max | 0.4max | 0.4max | 58min | / |
Mechanical Property UNS NO6625
| Grade | Tensile Strength(Mpa) min | Yield Strength (Mpa) min | Elongation (%) |
|
Gr 1 (annealed)D |
827 | 414 | 30 min |
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Gr 2(solution annealed)E |
690 | 276 | 30 min |
*Note: Not applicable to outside diameters under 1⁄8 in. (3.2 mm) and to wall thicknesses under 0.015 in. (0.38 mm). B Hot forming quality pipe and tubing is furnished to chemical requirements and surface inspection only. No tensile properties are required.
D: Annealed at 1600°F (871°C) minimum.
E: Solution annealed at 2000°F (1093°C) minimum, with or without subsequent stabilization anneal at 1800°F (982°C) minimum to increase resistance to sensitization.
Applications Industry
*Gas and Oil Processing
*Pharmaceutical Equipment
*Chemical Equipment
*Power Generation
*Sea Water Equipment
*Petrochemicals
*Heat Exchangers / Condensers / Boiler
*Specialty Chemicals
*Pulp and Paper Industry
Contact Person: Isabel Yao
Tel: +8618268758675
Fax: 0086-574-88017980
