ASTM A312 TP304 Seamless Stainless Steel Pipe For Fluid Transportation
ASTM A312 TP304 Seamless Stainless Steel Pipe is a high-performance austenitic seamless tubing purpose-built for reliable, long-lasting fluid transportation across global industrial and municipal projects. Manufactured strictly in compliance with ASTM A312 / ASME SA312 standards, this pipe features a fully homogeneous seamless structure with no welded seams, eliminating hidden leak risks that commonly occur in welded pipes during continuous fluid delivery.
Dimensional Specification
Parameter | Available Range | Tolerance Standard |
Outside Diameter | 1/8" (3.18mm) - 24" (610mm) | ±1% per ASTM A999 |
Wall Thickness | SCH 5S - SCH 160, XXS | ±10% for heavy cold worked condition |
Length | 5.8m, 6m, 12m, Custom Cut-to-Length | ±5mm per meter |
Pipe Ends | Plain End (≤2"), Beveled End (>2"), With Plastic Caps | Complies with ASME B16.25 |
Surface Finish | Black Painted, Natural, 2B Polished | No cracks, seams or laminations allowed |
Chemical Composition
Element | Content Standard for TP304 | ASTM A312 Requirement |
Carbon (C) | ≤ 0.08% | Complies with A312 low-carbon specification for excellent weldability |
Chromium (Cr) | 18.0-20.0 percent | Meets minimum 10.5% Cr threshold for corrosion resistance |
Nickel (Ni) | 8.0-10.5 percent | Ensures stable austenitic structure for low-temperature performance |
Manganese (Mn) | ≤ 2.0% | Controlled for consistent mechanical properties |
Silicon (Si) | ≤ 1.0% | Optimized for surface finish and fluid flow efficiency |
Phosphorus (P) | ≤ 0.045% | Strictly limited to avoid brittleness |
Sulfur (S) | ≤ 0.030% | Reduces risk of hot cracking during processing |
Mechanical Properties
Property | Test Result for TP304 | ASTM A312 Minimum Requirement |
Tensile Strength | ≥ 520 MPa (75,400 psi) | ≥ 515 MPa (75,000 psi) |
Yield Strength (0.2% Offset) | ≥ 210 MPa (30,450 psi) | ≥ 205 MPa (30,000 psi) |
Elongation (2" / 50mm) | ≥ 45% | ≥ 35% |
Hardness (Brinell) | ≤ 187 HB | ≤ 192 HB |
Low-Temperature Impact Energy | ≥ 28 J at -196°C | Accepted for service as low as -250°C per ASME Code |
Performance Advantages
Advantage | Detailed Description | SEO Target Keywords |
Superior Corrosion Resistance | Dense chromium oxide passive layer resists oxidation, water corrosion and mild chemical attack, 50+ years service life | corrosion resistant stainless steel pipe, 304 stainless fluid pipe |
Smooth Inner Wall | Low friction coefficient reduces fluid resistance by 12%, prevents scaling and avoids secondary contamination | smooth bore stainless pipe, low pressure drop fluid tubing |
Full Seamless Structure | No welded seams eliminates leak risk, ideal for high-pressure fluid transportation | seamless stainless steel pipe, leak-proof fluid pipeline |
Food & Pharmaceutical Grade | Oil-free cleaning ensures compliance with hygiene standards for drinking water, beverage and drug delivery | food grade 304 pipe, sanitary fluid transport tube |
Wide Temperature Adaptability | Stable performance from -250°C to 300°C, suitable for cryogenic and high-temperature fluid systems | high temperature resistant pipe, low temperature stainless tubing |
100% Recyclable | Eco-friendly material with 90%+ recycling rate, meets green building requirements | eco friendly stainless pipe, recyclable fluid pipeline |
Main Application
Industry | Typical Fluid Transportation Use Cases | High Search Volume Keywords |
Oil & Gas | Crude oil pipeline, natural gas gathering line, refinery process piping | oil and gas stainless pipe, refinery fluid pipeline |
Water Treatment | Municipal water supply, direct drinking water system, wastewater treatment | drinking water stainless pipe, water treatment fluid tubing |
Chemical & Petrochemical | Organic solvent transport, dilute acid/alkali delivery, process fluid piping | chemical resistant pipe, industrial chemical fluid line |
Food & Beverage | Juice, beer, milk and edible oil transportation pipeline | food processing stainless pipe, beverage delivery tubing |
Pharmaceutical | Ultra-pure water system, sterile drug fluid transfer piping | pharmaceutical grade pipe, medical fluid transport tube |
Construction | Building water supply, hot water circulation, fire protection pipeline | building plumbing stainless pipe, hot water fluid line |
Shipbuilding | Marine fluid system, offshore platform water and fuel piping | marine grade stainless pipe, ship fluid transport line |
Power Plant | Boiler feed water, cooling water and steam auxiliary piping | power station fluid pipe, boiler water delivery tube |
Quality Control & Testing
Testing Item | Execution Standard | Quality Assurance |
Hydrostatic Test | Per ASTM A999 | 100% pressure testing at 1.5x design pressure, no leakage |
Eddy Current Inspection | ASTM E426 | Full body non-destructive flaw detection, zero crack defect |
Spectral Analysis | PMI Testing | 100% material verification for each batch |
Intergranular Corrosion Test | ASTM A262 | Passes boiling sulfuric acid test for corrosion resistance |
Dimensional Check | ASME B36.19 | 100% OD and wall thickness inspection before shipment |
Packaging | Standard seaworthy wooden case | Protected with plastic caps to avoid contamination during transit |
Packaging & Shipping
Section | Details |
Packaging Method | Individual plastic end caps → Bundled with steel strips → Wrapped in waterproof kraft paper → Packed in fumigated wooden cases |
Shipping Marks | Customizable customer logo, heat number, size, grade, NDE marks clearly printed |
Port of Shipment | Main ports in China (Shanghai, Tianjin, Qingdao, Ningbo) |
Delivery Terms | FOB, CFR, CIF, EXW, DDU all available |
Shipping Documents | Commercial invoice, packing list, original MTC material test certificate, PMI report, test protocol, bill of lading |
After-Sales Service | 24/7 technical support, 12-month quality warranty, free replacement for manufacturing defects |
Products Description
FAQ
Q: What is ASTM A312 TP304 seamless stainless steel pipe used?
Q: What is the difference between TP304 and 304L seamless pipe?
Q: Can this pipe be used for drinking water transportation?
Q: What is the maximum working pressure of TP304 seamless pipe?
Q: How long is the service life of TP304 fluid pipe?
