Stainless Steel Seamless Pipe ASTM A312 TP304 UNS S30408 DN15 OD19×1.5mm Stainless Steel Pipe

High quality Stainless Steel Seamless Pipe ASTM A312 TP304 UNS S30408 DN15 OD19×1.5mm, cold drawn seamless structure, annealed pickled surface, standard 6m fixed length. Factory direct supply with complete MTC for water treatment, industrial piping, HVAC systems.

Key attributes

Products Description

Our Stainless Steel Seamless Pipe ASTM A312 TP304 UNS S30408 DN15 OD19×1.5mm is 1/2 inch small-diameter industrial pipe fully compliant with ASTM A312 standard. Manufactured via cold drawn seamless technology, finished with annealed & pickled surface, supplied in 6m fixed length as standard stock. UNS S30408 304 stainless steel delivers stable mechanical performance and mild corrosion resistance, widely used for freshwater circulation, food pipelines and general industrial fluid delivery. As China professional manufacturer, we provide full inspection certificates for global engineering buyers.

• Main pipe standard: ASTM A312 / ASME SA312
• Material grade: TP304, UNS S30408 (equivalent to 06Cr19Ni10)
• Dimension tolerance standard: ASME B36.19M
• Surface & heat treatment standard: ASTM A480/A480M
• Inspection standard: Eddy current test, hydrostatic test per ASTM A312

• Tensile Strength: ≥515 MPa
• 0.2% Offset Yield Strength: ≥205 MPa
• Elongation (50mm gauge length): ≥35%
• Max Hardness: HB ≤187, HRB ≤90
• Feature: Excellent low-temperature toughness, no cold brittleness, easy bending & flaring

Raw steel billet cutting → High temperature piercing → Multi-pass cold drawing → Solution annealing (1010–1120℃) → Acid pickling & passivation → Straightening & sizing → Dimension inspection → Eddy current/hydrostatic pressure test → Laser marking → Export packaging

• Seamless forming: No weld seam, uniform wall strength, zero leakage risk under medium pressure
• UNS S30408 material: Good anti-rust & corrosion resistance for atmosphere, fresh water, weak acid and alkali
• Smooth inner & outer wall (annealed pickled finish): Low fluid resistance, no residue accumulation
• Outstanding processing performance: Support welding, cutting, bending, flaring on construction site
• Stable temperature adaptability: Continuous service temperature up to 800℃, perfect for HVAC & heating pipelines
• Cost-effective general grade: Ideal choice for non-chloride industrial projects

This Stainless Steel Seamless Pipe ASTM A312 TP304 UNS S30408 DN15 OD19×1.5mm fits multiple industries:

• Industrial circulating water & water treatment system
• Food & beverage factory fluid pipeline
• HVAC, heating and cooling equipment tubing
• Light chemical medium transportation
• Construction plumbing & machinery instrument piping
• Factory auxiliary low-pressure process pipelines

  Note: Not recommended for seawater, brine or high chloride environment; select TP316L UNS S31603 for marine working conditions.

• Stock inventory: DN15 OD19×1.2/1.5/2.0mm TP304 seamless pipes in ready stock
• Custom service: Custom wall thickness, arbitrary cutting length, customized export packaging
• Export package: Waterproof plastic film + plywood case, avoid sea transport scratch
• Full certificates support: MTC Material Test Certificate, chemical composition report, mechanical test report, pressure inspection record
• MOQ & delivery: Small MOQ acceptable, 3–7 days lead time for stock goods
• Market coverage: Export to Southeast Asia, Middle East, Europe, South America for engineering wholesale

• Corrosion resistance: S31603 contains molybdenum, superior anti-chloride performance for seawater; S30408 only fits fresh water & air
• Carbon content: S30408 C≤0.08; S31603 low carbon C≤0.035, thick welding no intergranular corrosion
• Price: ASTM A312 TP304 UNS S30408 DN15 OD19×1.5mm more cost-effective for common industrial projects

• What standard does DN15 OD19×1.5mm seamless pipe follow?

  It complies with ASTM A312 TP304 UNS S30408, ASME B36.19M dimension standard.

• Is this stainless steel pipe suitable for seawater pipeline?

  No, TP304 UNS S30408 without molybdenum cannot resist chloride ion, choose TP316L instead.

• Can you provide Material Test Certificate for this pipe?

  Yes, full MTC including chemical, mechanical and dimension test reports can be offered.

• What surface finish of DN15 OD19×1.5mm TP304 pipe do you supply?

  Standard annealed & pickled surface; bright annealed finish is optional.

• Can I cut the pipe to shorter length than 6m?

  Custom cut-to-size service is available as customer’s demand.

• Same size different wall: Stainless Steel Seamless Pipe DN15 OD19×1.2mm / ×2.0mm ASTM A312 TP304
• Same material different diameter: DN25 OD25 TP304 Stainless Steel Seamless Pipe
• High corrosion resistant alternative: ASTM A312 TP316L UNS S31603 DN15 OD19 Pipe
• Matching accessories: Stainless steel elbow, tee, flange, pipe fittings for DN15 OD19 pipeline