YUHONG HOLDING GROUP CO., LTD
| Payment Terms | L/C,T/T |
| Delivery Time | 7 DAYS |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Product Name | U Bend Tube |
| Standard | ASTM A213, ASME SA213 |
| Material | TP304L / 1.4307 /UNS S30403 |
| OD | 1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc. |
| Thickness | BWG10-25 |
| Length | Single Random, Double Random & Cut Length |
| End | Plain End, Beveled End |
| High Light | ASTM A213 TP304L Stainless Steel Seamless Tube, 1.4307 U Bend Heat Exchanger Tube |
| Brand Name | YUHONG |
| Model Number | ASTM A213 TP304L Stainless Steel U Bend Tube |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA |
View Detail Information
Explore similar products
ASTM A249 TP316L Stainless Steel Welded Tube U Bend Heat Exchanger Tube
ASTM A213 TP321 Stainless Steel Seamless U Bend Tube Heat Exchanger Tube
ASTM A213 TP316L Stainless Steel U TUBE For Boiler and Heat Exchanger
ASME SB163 UNS N04400 Nickel Alloy Seamless Tube Monel 400 Tubing U Bend Heat
Product Specification
| Payment Terms | L/C,T/T | Delivery Time | 7 DAYS |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap | Product Name | U Bend Tube |
| Standard | ASTM A213, ASME SA213 | Material | TP304L / 1.4307 /UNS S30403 |
| OD | 1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc. | Thickness | BWG10-25 |
| Length | Single Random, Double Random & Cut Length | End | Plain End, Beveled End |
| High Light | ASTM A213 TP304L Stainless Steel Seamless Tube, 1.4307 U Bend Heat Exchanger Tube | Brand Name | YUHONG |
| Model Number | ASTM A213 TP304L Stainless Steel U Bend Tube | Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA | ||
| High Light | ASTM A213 TP304L stainless steel U bend tube ，1.4307 seamless heat exchanger tube ，S30403 U bend tube with warranty | ||
ASTM A213 / ASME SA213 TP304L / 1.4307 Stainless Steel Seamless Tube U Bend Heat Exchanger Tube
ASTM A213 TP304L Stainless Steel U Bend tubes are the workhorse of the food, dairy, and light chemical industries. Their success lies not in high strength or exotic corrosion resistance, but in predictable forming behavior and reliable weldability. When procuring these, the highest risks are residual stress and surface contamination. When specified correctly, inspected thoroughly, and installed in appropriate environments, it delivers decades of maintenance-free service at a fraction of the cost of high-alloy alternatives.
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 304L | S30403 | 304S11 | - | 1.4306 | X2CrNi19-11 | 2352 | SUS 304L |
ASTM A213 TP304L Stainless Steel U Bend Tube Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 304L | min. | - | - | - | - | - | 18.0 | - | 8.0 | - |
| max. | 0.030 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 12.0 | 0.10 | ||
ASTM A213 TP304L Stainless Steel U Bend Tube Mechanical Properties
| Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 304L | 485 | 170 | 40 | 92 | 201 |
Special Test for Stainless Steel/Duplex Steel Tubing
1. Stress Corrosion Cracking (SCC) at the Apex
Scenario: 304L U-bends in hot water (>140°F) with trace chlorides.
Mechanism: The outer radius has high residual tensile stress from bending. Chlorides attack the stressed grain boundaries.
Mitigation: If the water chemistry cannot be controlled, specify solution annealing after bending to relieve stress, or upgrade to 316L or Duplex 2205.
2. IGA (Intergranular Attack)
Scenario: Improper hot bending.
Mechanism: If the tube is heated to 900-1500°F and the carbon content is at the high end of the spec (0.035%) or if it is misgraded 304, chromium carbides precipitate. The area adjacent to the weld (heat affected zone) becomes "sensitized."
Solution: Verify the material certs (MTR) show low carbon; perform a Strauss Test (A262 Practice E) if required.
3. Erosion-Corrosion
Location: Inner radius of the U-bend.
Cause: Turbulent flow scouring the passive layer.
Note: 304L relies on a chromium oxide layer. If the media is erosive (slurries), the passive layer is stripped away faster than it can re-form.
Application
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification：
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
Get in touch with us
Leave a Message, we will call you back quickly!