This Seamless Stainless Steel Pipe ASTM A312 TP304 UNS S30408 DN25 NPS1 SCH10S OD33.4×2.77mm is manufactured strictly per ASTM A312 and ASME B36.19M standards. As SCH10S thin-wall stainless pipe, it adopts cold-drawn seamless forming technology without welding seam, effectively avoiding leakage risk under low working pressure.

Products Description

• Main Pipe Standard: ASTM A312 / ASME SA312
• Dimension Standard: ASME B36.19M (SCH grade system for stainless pipe)
• Material Grade: TP304, UNS S30408 (equivalent to GB 06Cr19Ni10)
• Heat Treatment & Surface Standard: ASTM A480/A480M
• Inspection Standard: Eddy current test, hydrostatic pressure test per ASTM A312

• Tensile Strength: ≥515 MPa
• 0.2% Offset Yield Strength: ≥205 MPa
• Elongation (50mm gauge length): ≥35%
• Max Hardness: HB ≤187
• Feature: Excellent low-temperature toughness, easy bending, flaring and cutting on site

• SCH10S thin-wall structure creates larger inner flow bore, low fluid resistance, lower material and shipping cost
• Seamless integral forming, no weld crack, stable service performance under low pressure
• Annealed pickled matte surface, clean tube interior, hard to accumulate dirt
• UNS S30408 304 stainless steel, excellent anti-rust property for clean fluid environment
• Good processability, easy cutting, bending and on-site welding construction

• Pure water & industrial water treatment equipment
• Food, beverage and dairy factory transmission pipelines
• Pharmaceutical purified water and CIP cleaning system
• HVAC cooling & heating circulation piping
• Low-pressure light chemical medium delivery

• Stock status: DN25 SCH10S OD33.4×2.77mm ready stock, fast delivery
• Custom service: Custom cutting length, customized export wooden case packaging
• Export package: Waterproof plastic film + plywood box to prevent scratch during sea transportation
• Full certification supply: Original MTC Material Test Certificate, chemical composition report, mechanical test record, pressure inspection document, support international project bidding
• MOQ & Lead time: Small MOQ acceptable, 3–7 working days for in-stock goods
• Main export markets: Southeast Asia, Middle East, Europe, South America industrial engineering wholesale

• What standard does this DN25 stainless pipe follow? It complies with ASTM A312 TP304 UNS S30408, ASME B36.19M SCH10S dimension standard.
• Is SCH10S DN25 pipe suitable for seawater pipeline? No, UNS S30408 without molybdenum cannot resist chloride ion corrosion, select TP316L SCH10S pipe for marine projects.
• Can you provide MTC certificate for this batch of SCH10S pipe? Yes, complete chemical, mechanical and dimension inspection MTC reports can be provided for every shipment.
• What surface finish of DN25 SCH10S seamless pipe do you supply? Standard annealed & pickled finish; bright annealed sanitary surface is available upon request.
• Can I cut the 6m fixed-length pipe into shorter sizes? Custom cut-to-length service is available according to customer construction requirements.
• Can DN25 OD32 pipe be marked SCH10S? No, SCH10S only matches ASME standard OD33.4 DN25 pipe; OD32 is non-standard size without official schedule specification.

• DN25 SCH40S Seamless Stainless Steel Pipe OD33.4×3.38mm
• DN32 NPS1-1/4 SCH10S TP304 Stainless Steel Pipe OD42.4×2.77mm
• TP316L UNS S31603 SCH10S Stainless Steel Pipe for chloride & marine environment
• Supporting DN25 stainless steel pipe fittings: elbow, tee, flange, reducer