ASTM A269 TP304H Stainless Steel Instrumentation Tubing
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GNEE is a well-known supplier, manufacturer, exporter, stockist, and distributor of ASTM A269 TP304H stainless steel tubes. We offer a wide range of ASTM A269 304H seamless stainless steel tubing that meets international quality standards.
ASTM A269 TP304H stainless steel instrumentation tubes supplied by GNEE are high-precision austenitic stainless steel tubes produced through precision cold-drawing or cold-rolling processes. They feature exceptional dimensional accuracy, with outer diameter tolerance controlled within ±0.05 mm and wall thickness tolerance within ±10%, ensuring reliable performance in instrumentation and control systems exposed to thermal cycling and mechanical stress.
ASTM A269 TP304H seamless tubes provide an ultra-smooth internal surface (Ra ≤ 0.8 μm), minimizing flow resistance and the risk of contamination. This makes them ideal for high-temperature instrumentation applications in power plants, refineries, and chemical processing facilities.In addition, ASTM A269 304H electropolished stainless steel tubing allows for the use of thinner wall material, reducing overall weight-an important advantage for structural applications such as pressure vessels, storage tanks, and bridge components.
Specifications |
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| Specifications | : | ASTM A/ASME SA213/A249/A269 |
| Dimensions | : | ASTM, ASME and API |
| SS 304 Tubes Size | : | 1/8″NB TO 30″NB IN |
| Thickness | : | 0.35mm to 6.35mm OD in thickness ranging from 0.1mm to 1.2mm. |
| Schedule | : | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Type | : | Seamless / ERW / Welded / Fabricated / LSAW Tubes |
| Form | : | Round, Square, Rectangular, Hydraulic Etc |
| Length | : | Single Random, Double Random & Cut Length. |
| End | : | Plain End, Beveled End, Treaded |
ASTM A269 TP304h Stainless Steel Seamless Tube Physical Properties
Grade |
Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 304H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
ASTM A269 Stainless Steel 304h Seamless 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 | ||||
| 304H | 515 | 205 | 40 | 92 | 201 |
| 304H also has a requirement for a grain size of ASTM No 7 or coarser. | |||||
ASTM A269 SS 304h Equivalent
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 304H | S30409 | 304S51 | – | 1.4948 | X6CrNi18-11 | – | – |
Stainless Steel 304HH Tube Price List
tp304H seamless stainless steel Tubes
US $2500-4100 / Ton (FOB Price)
seamless Tube astm a269 tp304H
US $600-1200 / Ton (FOB Price)
sa269 tp304H welded Tubes
US $1.5-9 / Kilogram (FOB Price)
ASTM A213 Gr. TP304H seamlessTube
US $500-1000 / Ton (FOB Price)
If you have any project requirements for ASTM A269 TP304H stainless steel welded pipes, please click the button below to contact us immediately. We are happy to serve you.
304H Stainless Steel Pipe Testing Certificates
GNEE provides manufacturer testing certificates (TCs), raw material certificates, 100% radiographic testing reports, and third-party inspection reports conforming to EN 10204/3.1B standards. We also provide standard certificates such as EN 10204 3.1, as well as additional requirement certificates such as NACE MR 01075.
• EN 10204/3.1B
• Raw Material Certificates
• 100% Radiographic Testing Reports
• Third-Party Inspection Reports, etc.
Package
Stainless Steel 304HSeamless Tube may be furnished bare or coated and with capped ends. tubes up to 3" OD will be supplied in bundles. In order to prevent rust during sea shipment, bundles of Stainless Steel 304HH Seamless Tubes may be wrapped with polypropylene sheets, and secured with flat steel bands. Over 3" OD will be supplied loose.
