Heat Resistant Stainless Steel Pipe Seamless Pipe Alloy 310S / 2520
/ 1.4845 / TP310S Pipes
Products Specification
| Standard | ASTM A213, ASTM A269, ASME SA213, ASME SA269 |
| Pipe Type | Bright Annealed Stainless Steel Tubing |
| Grades | 304, 304L, 316, 316L, 321, 310S, 2205, 2507 |
| Dimensions | Outer Diameter (OD): 1.00 mm to 76.2 mm |
| Wall Thickness | 0.2 mm to 6.0 mm |
| Length | Up to 12 meters (custom lengths available upon request) |
| Manufacturing Process | Cold Drawn, Bright Annealed, Seamless |
| Material Surface Finish | Bright Annealed (BA), Mirror Polished, No. 4 Finish |
| End Type | Plain End (PE), Beveled End (BE), Threaded End (TE) |
| Certifications | ISO 9001, EN 10204 3.1 / 3.2, PED, ASME |
Bright Annealing Tube
Bright annealing tube under a reducing atmosphere or in a vacuum
protection, after high temperature solid melting and rapid cooling
to get the stainless steel tube, requiring the inner surface has a
very good surface roughness and cleanliness, is a comprehensive
consideration of organizational stability corrosion resistance and
workability of the pipe.
Bright annealed tube inner surface roughness Ra values and their
own cleanliness is extremely demanding, so the particles can occur
during transport and accumulation of fluid retention has been
effectively curbed. In addition, the chemical composition of the
pipe and the base material dimensional tolerances need to be
strictly controlled to ensure the weldability of steel and the
welding quality in the welding fumes, which can reduce the
occurrence of particle generation and improving the corrosion
resistance of welded parts, and smoothness.
Bright annealed stainless steel welded pipe is widely used in
making military products, semiconductor, biological medicine,
precision instruments and meters, hydraulic parts and many other
industrial products.
Bright annealing is an annealing process performed in a vacuum or a
controlled atmosphere containing inert gases (such as hydrogen).
This controlled atmosphere reduces the surface oxidation to a
minimum which results in a brighter surface and a much thinner
oxide layer. Pickling is not needed after bright annealing since
the oxidation is minimal. Since there is no pickling, the surface
is much smoother which results in better resistance to pitting
corrosion.
Bright Annealing Tube Production Control:
- Smelting raw materials must have good control, the level required
to meet the microstructure times better level.
- Cold rolling volume control and reasonable within the organization
in order to avoid defects.
- Mold control, to ensure the inner and outer surface roughness R a ≤
0.3μm.
- Bright annealing control to ensure reasonable mechanical properties
and surface brightness, and eliminate the pass mechanical polishing
(MP), to ensure the smoothness of the inner surface under
microscopic state, to avoid transmission fluid residues.
- Cleaning the control surfaces should have the products delivered
better cleanliness and cleanliness, with metallic colors, no oil
adhesion, oxide adhesion.
- Single hats loss prevention bagging, overall braid or wooden
packaging.
The material of the stainless steel round bar is from Jiuli and
Baosteel China, we control the quality from the very start. We
polished three times to make sure the surface is perfect bright and
smooth, and without any deficiency in quality.
The Bright Annealing Tube System can either be placed standalone or
in-line with surface reduction equipment to create a total in-line
process. Innovative design allows for easy changeover from product
to product, and each system is equipped with automatic power
control and precision temperature control through recipe
parameters.
- Designed for ease of operation and maintenance
- Automatic speed sensor controls power proportionate to line speed
- Recipe storage and retrieval
- Integrated temperature sensing
- High wear ceramic tube guides
- Integrated pumping system
- Solid state inverters, operating in both medium and high
frequencies
Bright annealing (BA) refers to stainless steel material is heated
in closed furnace in reducing atmosphere of inert gases, common
Hydrogen gas, after fast annealing, rapid cooling, stainless steel
has a protective layer on the outer surface, no reflect in open air
environment, this layer can resist corrosion attack. In general,
material surface is more smooth and brighter.
Stainless Steel 310 tubing composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|
| 310 | min. | | – | – | – | – | 24.0 | 0.10 | 19.0 | – |
| max. | 0.015 | 2.0 | 0.15 | 0.020 | 0.015 | 26.0 | 21.0 | – |
| 310S | min. | – | – | – | – | – | 24.0 | 0.75 | 19.0 | – |
| max. | 0.08 | 2.0 | 1.00 | 0.045 | 0.030 | 26.0 | 22.0 | – |
Stainless Steel 310 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 |
|---|
| 310 | 515 | 205 | 40 | 95 | 217 |
| 310S | 515 | 205 | 40 | 95 | 217 |
Equivalent Grades for Stainless Steel 310 Tube
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | GOST |
|---|
| BS | En | No | Name |
|---|
| 310 | S31000 | 304S31 | 58E | 1.4841 | X5CrNi18-10 | 2332 | SUS 310 | 20Ch25N20S2 |
| 310S | S31008 | 304S31 | 58E | 1.4845 | X5CrNi18-10 | 2332 | SUS 310S | 20Ch23N18 |
ASTM A269 SS 310 310S coiled tubing
310 Stainless Steel straight tube heat exchanger
SS UNS S31008 straight tube boiler
Stainless Steel 310S Tubing
Alloy 310 310S extreme environment gas tube
Stainless Steel 310 tube stock
GOST 20Ch23N18 welded tubing
SS 310S tubing bends
SS UNS S31000 thin wall tubing
ASTM A249 TP 310S Stainless Steel tube
ASTM A213 Stainless Steel mechanical tubing
310 Stainless Steel Capillary Tubing
Stainless Steel 310/310S Heat Exchanger Tube
ASTM A213 Gr. TP310/310S seamless tube
