Wholesale ASTM 304 316 Mirror Polished Seamless Tube Tank 6 Inch Schedule 40 201 Stainless Steel Pipe Price
Product Details
| Type: | Stainless Steel Pipes | Standard: | ASTM, AISI, GB, JIS, DIN, EN |
|---|---|---|---|
| Grade: | 300 Series | Model NO.: | Stainless Steel Pipe |
| Shape: | Round | Technique: | Cold Rolled |
| Surface Treatment: | Polished | Applications: | Architectural Decoration |
| Product Name: | Stainless Steel Pipe | Surface Finish: | 2b,Ba,No.1,No.4,4K,8K,Mirror |
| Tolerance: | 1% | Ni: | 8-12% |
| Materials: | 201,304,321,316ti,316L,314h,310S,2507 | Transport Package: | Water Proof Paper+Metal Pallet+Angle Bar Protectio |
| Specification: | As Requirement | Trademark: | TISCO, POSCO, JISCO, LISCO Etc. |
| Origin: | Wuxi China | HS Code: | 721922 |
| Production Capacity: | 50000ton/Month | ||
| Highlight |
304 stainless steel seamless pipe,6 inch schedule 40 steel pipe,mirror polished stainless steel tube |
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Product Description
304 stainless steel pipe (18-8 austenitic stainless steel) is supplied for B2B trade, specification confirmation, and project sourcing. This overview covers the Chinese GB equivalent grade, global standards, mechanical properties, production types, applications, and quality documentation requirements for wholesale and export orders.
Metallurgical structure: fully austenitic and non-magnetic after solution annealing, with good ductility, weldability, and formability.
| Element | C | Si | Mn | P | S | Cr | Ni | Fe |
|---|---|---|---|---|---|---|---|---|
| % | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0–20.0 | 8.0–11.0 | Balance |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 520 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 187 HBW, ≤ 90 HRB |
| Density | 7.93 g/cm³ |
| Max Working Temperature | 870°C (continuous) |
- USA: AISI 304 / UNS S30400
- Japan: SUS304
- Germany / Europe: 1.4301 / X5CrNi18-10
- China: 06Cr19Ni10 (old: 0Cr18Ni9)
Outer Diameter (OD): 6 mm – 630 mm (up to 3000 mm custom)
Wall Thickness (WT): 0.15 mm – 50 mm
Dimensional systems: OD × Wall Thickness (mm); NPS/DN + Schedule (SCH 10S, SCH 40S, SCH 80S, etc.)
Standard lengths: 6 m, 12 m; custom lengths available (1–12 m)
Surface finishes: Pickled (industrial), 2B (mill finish), BA (bright annealed), polished (No.4, mirror)
Types: Seamless, Welded
Surface: 2B, BA, Polished
- ASTM A312 (Seamless / Welded)
- ASTM A213 (Boiler / Heat Exchanger)
- GB/T 14976 (Fluid Pipe)
- EN 10216, JIS G3459
| Type | Production Process | Common Standards | Typical Uses |
|---|---|---|---|
| Seamless Pipe | Hot piercing + cold drawing / rolling | ASTM A312, GB/T 14975, EN 10216-5 | High pressure, high temperature, chemical, boiler |
| Welded Pipe (ERW / SAW) | Strip forming + fusion welding | ASTM A312, GB/T 12771, EN 10217-7 | General fluid, architecture, low / medium pressure |
| Decorative Pipe | Thin-wall welded, polished surface | GB/T 18705 | Railings, handrails, curtain walls |
- Excellent resistance to atmospheric corrosion, weak acids / alkalis, and oxidation
- Food-grade compliant (3-A, FDA)
- Easy to weld (TIG / MIG) and fabricate
- High impact toughness at low temperatures
- Poor resistance to chloride pitting and crevice corrosion — not recommended for seawater; use 316 / 316L instead
- Susceptible to intergranular corrosion if improperly heat-treated after welding — use 304L for critical welded systems
- vs. 200-series: Better corrosion and heat resistance
- vs. 316: Lower cost; 316 is better for chloride (seawater) environments
- vs. 304L: 304L (extra-low carbon) is better for heavy welding to avoid intergranular corrosion
- Food & Beverage: Dairy, brewery, juice processing, clean water lines
- Chemical & Petrochemical: General corrosive fluid transfer, heat exchangers, reactor coils
- Building & Infrastructure: Potable water piping, HVAC, architectural railings, facade structures
- Pharmaceutical & Medical: Sterile fluid systems, cleanroom piping
- Energy & Power: Boiler feedwater, condenser tubes, desalination pre-treatment
- Automotive & General Machinery: Hydraulic lines, instrumentation tubes
- Dimensional check and visual inspection
- Pressure / leak test
- Chemical analysis (spectrometry)
- Mechanical testing
- Grain size and intergranular corrosion test (if specified)
- MTC (Mill Test Certificate) per EN 10204 3.1 / 3.2
- Third-party lab report (e.g., SGS, BV)
- Market-specific certifications (INMETRO for Brazil, GOST-R for Russia, etc.)
- Positive material identification (PMI) via XRF / optical emission spectrometry
- Ultrasonic testing (UT) for wall thickness and inclusions
- Eddy current (ET) for surface defects
- Clearly state the standard and grade (e.g., ASTM A312 TP304, GB/T 14975 06Cr19Ni10)
- Define OD, wall thickness, schedule, length, surface finish, and test requirements upfront
- For chloride-rich environments, consider upgrading to 316L; for welded systems requiring resistance to intergranular corrosion, specify 304L (C ≤ 0.03%)
- Verify the supplier's capability to provide EN 10204 3.2 certificates and PMI reports for each batch, especially for high-value or critical projects
Our company offers a wide variety of products to meet diverse customer demands. Since establishment, we have adhered to the management principles of "quality first, customer first, and credit-based," always striving to satisfy our customers' potential needs. We sincerely welcome cooperation with enterprises worldwide to realize a win-win situation in the era of economic globalization.
As an internationally experienced and professional supplier, our company has been engaged in the steel business for more than ten years. We provide a variety of high-quality steel products to clients worldwide.
Yes. Please feel free to contact us for more details.
100% T/T in advance; 30% T/T with balance against copy of documents; or 30% T/T in advance with balance by L/C at sight.
Warmly welcome. Once we have your schedule, we will arrange a professional sales team to follow up on your case.
Yes. Samples are free for regular sizes, but the buyer covers the freight cost.
Regular lead time is 15 to 30 days after receiving the deposit.
Product Highlights
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