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304 Polished Pipe in Tanzania
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304 polished pipe from Rico Steel pairs an austenitic body of 18 to 20% chromium and 8 to 11% nickel with a finish that runs from brushed satin to mirror. SS 304 / UNS S30400 / 1.4301 names one alloy under three systems, with tensile strength from 515 MPa and yield from 205 MPa. The polished surface and appearance stay clean and uniform, which suits handrails, façades and food lines. Corrosion resistance, durability and fabrication properties come from the chromium oxide layer. This layer resists moisture and mild chemicals, while standard saws, benders and TIG welders cut, form and join it.
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Rico Steel stocks the following ranges, with custom sizes on request.
| Parameter | Range |
| Outside diameter | 10.3 mm to 610 mm |
| Wall thickness and schedule | 0.8 mm to 12.7 mm; Sch 5S, 10S, 40S, 80S |
| Standard and custom lengths | 6 m standard; custom cuts on request |
| Seamless and welded construction | Seamless, ERW, EFW |
| Surface finish | #4 satin, #8 mirror, BA |
| Pipe shape and ends | Round, square, rectangular; plain, beveled, threaded |
| Applicable ASTM / ASME standards | ASTM A312, A554, A269, A358; ASME SA312, B36.19M |
Extruded or pierced without a weld seam, this pipe handles pressure lines and process piping where uniform wall strength matters more than cost.
Formed from strip and welded by ERW or EFW, it delivers consistent wall thickness at lower cost for structural, water and architectural runs.
Built to ASTM A554, it blends the weld seam into a polished surface for handrails, balustrades, gates and furniture frames.
Round section spreads stress evenly and joins with standard fittings. Buyers choose it for railings, water lines, columns and conveyor frames.
Mirror or satin polishing gives shopfronts, lobbies, signage supports and interior features a clean metallic look.
| Standard | Designation |
| UNS | S30400 |
| EN | 1.4301 / X5CrNi18-10 |
| JIS | SUS 304 |
| AISI | 304 |
| BS | 304S31 |
| AFNOR | Z7CN18-09 |
| GB (China) | 06Cr19Ni10 |
Polished finishes start at 180 grit and rise to 600 grit or higher.
Settle finish selection according to application and appearance requirements before ordering, since repolishing installed pipe costs more.
Every lot starts with material and grade verification by spectrometer to confirm 18 to 20% chromium and 8 to 11% nickel. Dimensional inspection measures outside diameter, wall thickness and length against tolerance. Surface finish inspection checks grit lines, weld blending and pits under inspection light. Mechanical testing, where applicable, covers tensile, yield, flattening and bend tests. Hydrostatic or non-destructive testing, where required, adds pressure proof and eddy current checks. Each shipment carries a Material Test Certificate and documentation listing heat number and chemistry.
Start with grade: SS 304 for freshwater, indoor and mild atmospheric service. Give diameter and wall thickness as NB and schedule, respectively. Pick the manufacturing method: seamless for pressure, welded for structural and architectural runs. Name the surface finish by number. State length and end type. Describe the service environment, including chloride exposure, temperature and media, since coastal splash zones may call for 316. Cite applicable standards, for example ASTM A312 or A554. Finish with testing and documentation requirements, including hydrotest.
From Dar es Salaam hotels to Mwanza processing plants, 304 polished pipe delivers 515 MPa tensile strength and a finish from satin to mirror. A wrong grade, wall or finish forces rework, so confirm every line of the specification before ordering. Send your drawings, sizes and quantities to Rico Steel and receive a priced quote.
Rico Steel supplies seamless, welded, ornamental, round and decorative 304 polished pipe to Tanzanian buyers, in outside diameters from 10.3 mm to 610 mm with satin, mirror or BA finishes.
Yes. Rico Steel supplies 304 ERW polished pipe made to ASTM A312, in wall thicknesses from 0.8 mm to 6 mm, cut to length and polished to your finish.
Tanzanian builders, water utilities, food processors, mines and hotels use 304 polished pipe for handrails, potable lines, dairy piping, process water, chemical transfer and decorative frames.
Dust, humidity and process water lines suit it. Chloride-laden brine and acidic leach solutions need 316 or duplex stainless, because 304 pits above roughly 200 ppm chloride at warm temperatures.
Sheltered installations in Dar es Salaam or Tanga stay serviceable, but splash zones and seawater contact call for 316, and pipe within 1 km of shore needs regular freshwater rinsing.
Rico Steel is a prominent manufacturer of Stainless Steel Welded Pipes and Tubes. The management always set benchmarks and push development forward in metallurgy. Stainless Steel Welded Pipes & Tubes stockist of all sizes and grades.