Yuhong Group Co.,Ltd
| Payment Terms | T/T, L/C, Western Union |
| Supply Ability | 1500 Tons Per Month |
| Delivery Time | 5-80 days |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Steel grade | 321 |
| Type | Welded steel tube |
| Standard | ASTM, AISI, GB, DIN, JIS |
| Length | 3000mm-6000mm, 6 Meters or customized, 18000max., 11.8m or as required., 8m |
| Thickness | 0.4-30mm, 1.0mm, 0.6mm-2500mm, 1mm-60mm, 0.6-25 mm |
| Technique | Cold Rolled Hot Rolled, Cold Drawn, Extrusion, Cold Drawn/Cold Rolling or Both of them |
| Product name | Stainless Steel Pipe, 304 304L 316 316L 321 310S Stainless Steel Welded/Seamless Tube, Factory Direct Sales Stainless Steel Pipe For Electric Heating Element, Seamless stainless Steel Pipe/Tube |
| Outer diameter | 6-630mm, Customized, 6-762mm, 6-860mm;, 6mm-630mm |
| Surface | Annealing, 8K, Polishing or Unpolishing, Morror/Satin |
| Finish | Brush Polish, Cold drawn, Pickled, Bright Annealed or Un Annealed, Bright |
| Brand Name | YUHONG |
| Model Number | ASME SA269 TP321 |
| Certification | ISO, SGS, BV, ISO & SGS, ISO/CE/SGS |
| Place of Origin | CHINA |
View Detail Information
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Product Specification
| Payment Terms | T/T, L/C, Western Union | Supply Ability | 1500 Tons Per Month |
| Delivery Time | 5-80 days | Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Steel grade | 321 | Type | Welded steel tube |
| Standard | ASTM, AISI, GB, DIN, JIS | Length | 3000mm-6000mm, 6 Meters or customized, 18000max., 11.8m or as required., 8m |
| Thickness | 0.4-30mm, 1.0mm, 0.6mm-2500mm, 1mm-60mm, 0.6-25 mm | Technique | Cold Rolled Hot Rolled, Cold Drawn, Extrusion, Cold Drawn/Cold Rolling or Both of them |
| Product name | Stainless Steel Pipe, 304 304L 316 316L 321 310S Stainless Steel Welded/Seamless Tube, Factory Direct Sales Stainless Steel Pipe For Electric Heating Element, Seamless stainless Steel Pipe/Tube | Outer diameter | 6-630mm, Customized, 6-762mm, 6-860mm;, 6mm-630mm |
| Surface | Annealing, 8K, Polishing or Unpolishing, Morror/Satin | Finish | Brush Polish, Cold drawn, Pickled, Bright Annealed or Un Annealed, Bright |
| Brand Name | YUHONG | Model Number | ASME SA269 TP321 |
| Certification | ISO, SGS, BV, ISO & SGS, ISO/CE/SGS | Place of Origin | CHINA |
| High Light | ASTM A269 TP321 stainless steel tube ，welded stainless steel tube for electro thermal ，TP321 stainless steel welded tube | ||
ASTM A269 / ASME SA269 TP321Stainless Steel Welded Tube For Electro Thermal
Overview
ASTM A269/ASME SA269 TP321 welded stainless steel pipe is a corrosion-resistant piping solution based on titanium-stabilized austenitic stainless steel. It offers significant cost advantages in low- to medium-pressure, moderately corrosive environments. Strict weld quality and surface treatment level are crucial during selection, ensuring compatibility with high-temperature chloride environments. It is a cost-effective choice for industries such as chemical, food, and pharmaceuticals.
TP321 welded stainless steel pipe's core value in the electric heating industry lies in its ability to replace seamless pipe at a 30%-50% cost advantage while meeting the oxidation and corrosion resistance requirements of medium- and high-temperature applications. Its reliability has been proven in applications such as resistance sheaths, hot air ducts, and electrode boilers.
In the electric heating industry, small-diameter stainless steel welded pipe (such as ASTM A269 TP321) is advantageous due to its adaptability (compactly encapsulating the heating element, with diameters ranging from 6 to 25 mm), lower mass production costs compared to seamless pipe, and comparable performance. Its thin-wall design improves thermal response, and its austenitic stainless steel resistance to oxidation and corrosion at temperatures up to 800°C is also excellent.
SA 269 TP 321 Welded Tubes Mechanical Properties
| Grade | Yield Strength 0.2% Proof (MPa) minimum | Tensile Strength (MPa) minimum | Elongation (% in 50 milimeter) minimum | Hardness | |
| Rockwell B (HR B) maximum | Brinell (HB) maximum | ||||
| 321 | 205 | 515 | 40 | 95 | 217 |
| 321H | 205 | 515 | 40 | 95 | 217 |
ASTM A269 Grade TP321 ERW Tubes Equivalent
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 321 | S32100 | 321S31 | 58B, 58C | 1.4541 | X6CrNiTi18-10 | 2337 | SUS 321 |
| 321H | S32109 | 321S51 | – | 1.4878 | X10CrNiTi18-10 | – | SUS 321H |
SA 269 Grade TP321 Coil Tubing Physical Properties
| Grade | Elastic Modulus (GPa) | Density (kg/m3) | Thermal Conductivity (W/m.K) | Mean Coefficient of Thermal Expansion (m/m/0C) | |||
| at 5000C | at 1000C | 0-3150C | 0-1000C | 0-5380C | |||
| 321 | 193 | 8027 | 22.2 | 16.1 | 17.2 | 16.6 | 18.6 |
Application:
1. Heating element sheaths. Encapsulated resistance wire/PTC heaters
2. High-temperature fluid pipelines. Thermal oil/electrode boiler pipelines
3. Precision heat exchange systems. Semiconductor equipment gas pipelines, micro thermal probes
4. Hot air circulation ducts. Electric hot air furnaces, drying line ducts
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
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