304 mirror stainless steel tube has been finely polished, and the surface finish can reach BA, 6K, 8K mirror effect, with high reflectivity and bright appearance like a mirror. It contains chromium and nickel to form a dense oxide film with excellent corrosion resistance.
304 stainless steel bright annealed tube has high strength, high toughness and good ductility. It can withstand large external forces without deformation or damage. The surface is smooth and not easy to absorb dirt. It can be kept clean and tidy by simply wiping it daily. It is suitable for high-end buildings and precision equipment.
Implementation standards
Domestic standards: GB/T 12771 (welded pipe), GB/T 14976 (seamless pipe), GB/T 3280 (surface quality).
International standards: ASTM A269 (welded pipe), ASTM A312 (seamless pipe), ASME BPE (pharmaceutical grade).
| Item | Index |
|---|---|
| Chemical composition | Cr: 18-20%, Ni: 8-10%, C≤0.07%(304)/ C≤0.03%(304L) |
| Density | 7.93 g/cm³ |
| Melting point | 1398-1454℃ |
| Magnetic properties | Non-magnetic (may be slightly magnetic after cold working) |
| Category | Parameter Range |
|---|---|
| Specification | - Welded pipes: OD 6-630mm, wall thickness 0.5-10mm - Seamless pipes: OD 6-219mm, wall thickness 1-12mm |
| Surface Finish | - 8K Mirror: Ra ≤ 0.2μm - 10K Super Mirror: Ra ≤ 0.1μm |
| Mechanical Properties | - Tensile strength ≥ 520MPa - Yield strength ≥ 205MPa - Elongation ≥ 40% |
| Corrosion Resistance | Resistant to atmospheric corrosion, water, acids (e.g., H₂SO₄), alkalis (e.g., NaOH), and weak salt solutions |
304 stainless steel 6K mirror tube: ordinary mirror, reflectivity about 85%, suitable for conventional decoration.
304 stainless steel 8K mirror tube: fine mirror, reflectivity ≥ 90%, no obvious scratches on the surface.
304 stainless steel 10K super mirror tube: ultra-high mirror, reflectivity ≥ 95%, suitable for high-end precision equipment.
Why choose GNEE
GNEE has an annual production line of 25,000 tons of stainless steel seamless pipes, 20,000 tons of welded pipes, and 5,000 tons of pipe fittings. It can produce φ6～φ762×0.5～70mm stainless steel seamless pipes, φ15～φ2200×0.5～80mm stainless steel welded pipes, pipe fittings and other products according to GB, ASTM, JIS, DIN and other standards.
The main brands are TP321, TP316Ti, S32205, TP347H, TP316L, TP310S, TP304, TP304L, 321, S32750, 904L, C276, 254SMO, etc.
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Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 50% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment.or negotiable
