ASME SA213 Seamless Stainless Steel TP316L Bend U Oil Boiler Tubes
Brand Name:YUHONG
Certification:ISO9001-2008, API 5L, API 5CT
Model Number:ASME SA213 / ASTM A213
Minimum Order Quantity:10PC
Delivery Time:10-80 days
Payment Terms:T/T, L/C
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ASME SA213 Seamless Stainless Steel TP316L Bend U Oil Boiler Tubes
YuHong can offer SA213/A213 TP316L seamless stainless steel bend U
tubes and we sell these products with highest quality in more than
70 countries.
ASME SA213 / ASTM A213 This specification covers seamless ferritic and austenitic steel
boiler, superheater, and heat-exchanger tubes, designated Grades
T5, TP304, etc.
TP316L stainless steel pipe is a high-strength, corrosion-resistant, high-temperature-resistant material, which is widely used in petroleum, chemical, pharmaceutical, food and other fields. The mechanical properties of TP316L stainless steel pipe are better than other materials. By adding appropriate alloying elements, TP316L stainless steel pipe can maintain good mechanical properties under high temperature and high pressure environment.
The data shows that the tensile strength, flexural strength and
elastic modulus of TP316L stainless steel pipe are much higher than
those of traditional materials. Especially in high temperature and
low temperature environments, the change characteristics of its
mechanical properties are more obvious.
U tubes are manufactured by bending straight tubes. Bending is done
cold on an automatic U-bend. To ensure tube wall thinning and
diameter ovality are controlled, tube bending is accomplished with
a mandrel inserted into the tube. What's more, the U-bend of the
U-tube is stress relieved under controlled conditions and cycles
for extended life.
Specifications
| Sizes / Thickness | Sizes and thicknesses usually furnished to this specifification are
1 ⁄ 8 in. [3.2 mm] in inside diameter to 5 in. [127 mm] in outside
diameter and 0.015 to 0.500 in. [0.4 to 12.7 mm], inclusive, in
minimum wall thickness or, if specifified in the order, average
wall thickness | ||||
| Manufacture | Tubes shall be made by the seamless process and shall be either hot finished or cold finished, as specified | ||||
| 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) | ||||
| Length | Required by clients | ||||
| Surface Condition | 1.Cold-fifinished steel tubes shall be free of scale and suitable
for inspection. A slight amount of oxidation is not considered
scale 2.Hot-fifinished steel tubes shall be free of loose scale and
suitable for inspection 3.Stainless steel tubes shall be pickled free of scale.When bright
annealing is used, pickling is not necessary | ||||
| 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
1.Chemical Analysis
2.Corrosion Test
3.Mechanical Tests: Flattening test, Flaring test, Flange test, Hardness Test and Hydrostatic test
4.Reverse-bend and Re. flat tests
5.Eddy Current Testing
6.Hydrostatic Testing
7.Visual Inspection
8.Air Under Pressure Test
Chemical Composition S31603
| Chemical Composition | C≤ | Mn≤ | P≤ | S≤ | Si≤ | Cr | Ni | Mo |
| 0.035 | 2 | 0.045 | 0.03 | 1 | 16-18 | 10-14 | 2-3 |
For small diameter or thin walls, or both, where many drawing passes are required, a carbon maximum of 0.040% is necessary in Grades TP316L.
Mechanical Property S31603
| Steel Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) | Hardness max |
| TP316L | 485min | 170min | 35min | 192HBW/200HV 90 HRB |
Applications Industry
Gas Processing
Pharmaceutical Equipment
Chemical Equipment
Power Generation
Sea Water Equipment
Petrochemicals
Heat Exchangers / Condensers / Boiler
Specialty Chemicals
Pulp and Paper Industry
ASME SA213 Seamless Stainless Steel TP316L Bend U Oil Boiler Tubes
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