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18 inch diameter stainless steel pipe
China
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 Ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
18 Inch Diameter Stainless Steel Pipe Product Attributes
| Property | Parameter | Description |
|---|---|---|
| Nominal Size | 18" (457.2 mm) | Extra-large diameter pipe used in major industrial and utility applications . |
| Material Grade | 304, 304L, 316, 316L | Austenitic stainless steel grades providing excellent corrosion resistance . |
| Outer Diameter (OD) | 18.625" ± 0.015" (473.075 mm) | Precision outer diameter conforming to ASTM standards . |
| Wall Thickness | 0.188" – 0.875" (4.78 – 22.23 mm) | Multiple schedule options (5S, 10S, 40S, 80S, 120, 160) for various pressures . |
| Inside Diameter (ID) | Varies with wall thickness | Calculated from OD minus twice the wall thickness . |
| Weight per Foot | 6.02 – 59.03 lbs/ft (depending on wall) | Varies based on schedule and wall thickness selected . |
| Manufacturing Type | Seamless, Welded | Available in seamless (hot/cold rolled) or welded configurations . |
| Standards | ASTM A312, ASTM A213, DIN 17457 | Compliance with international manufacturing and testing standards . |
| Pressure Rating | 150 – 2500+ PSI | Depends on schedule; higher wall thickness supports elevated pressures . |
| Operating Temperature | -196°C to +870°C | Suitable for cryogenic to high-temperature industrial applications . |
| Corrosion Resistance | Excellent | Resists oxidation, pitting, and crevice corrosion in most environments . |
| Surface Finish | Polished, Pickled, Mill, Bright | Available finishes for different applications and aesthetic requirements . |
| Tolerance (OD) | ±0.015" to ±0.025" | Manufacturing tolerance ensures dimensional accuracy and consistency . |
| Chromium Content | 16 – 18% (304 grade) | Primary element providing corrosion resistance . |
| Nickel Content | 8 – 13% (304 grade) | Enhances corrosion resistance and workability . |
| Tensile Strength | 515 – 620 MPa | Ultimate strength under tension; varies by grade and condition . |
| Yield Strength | 205 – 310 MPa | Stress at which permanent deformation begins . |
| Density | 8.0 g/cm³ | Mass per unit volume of stainless steel . |
| Modulus of Elasticity | 193 GPa | Measures stiffness and rigidity of the material . |
| Elongation | ≥ 40% (annealed) | Ductility indicating material flexibility before breaking . |
| End Finish | Plain, beveled, threaded, flanged | Various end preparations for different connection methods . |
| Weldability | Excellent | Can be welded without pre-heat or post-weld treatment in most cases . |
| Applications | Oil & gas, power plants, water treatment, chemical | Used in large-scale piping systems for critical utilities . |
| Length Options | 20 ft (standard), or custom cut | Standard or custom lengths available per specification . |
| Flow Capacity | Very high (extra-large cross-section) | Suitable for maximum-volume fluid and gas transport . |
| Flanged Options | Available with flange connections | Bolt-together connections for large-diameter systems . |
| Structural Support | Heavy-duty support structure required | Requires substantial framework and support components . |
| Handling Equipment | Heavy-duty cranes, specialized lifting | Requires professional-grade equipment for installation . |
| Installation Complexity | Very high (specialized installation) | Demands experienced technicians and specialized equipment . |
| Tolerance (WT) | ±10% or per specification | Wall thickness tolerance per ASTM standards . |
| Thermal Expansion | 15.9 × 10⁻⁶/°C | Coefficient of thermal expansion for engineering calculations . |
| Traceability | Mill certificates available | Full documentation of material composition and testing . |
| Hydrostatic Testing | Available per specification | High-pressure testing verifies pipe integrity . |
| Cost | Premium (large diameter) | Significantly higher cost due to size and material volume . |
18 Inch Diameter Stainless Steel Pipe Product Introduction
Critical Applications of 18 Inch Diameter Stainless Steel Pipe in Major Industrial Systems
The 18 inch diameter stainless steel pipe represents a premium large-bore piping solution engineered for ultra-high-capacity fluid transport and sophisticated industrial infrastructure systems. An 18 inch diameter stainless steel pipe delivers exceptional performance in petroleum distribution networks, municipal water supply systems, and large-scale industrial processing facilities requiring massive volume conveyance. Industries including oil and gas refining, power generation facilities, chemical manufacturing plants, and municipal water treatment operations depend on 18 inch diameter stainless steel pipes for reliable performance in the most demanding operational environments. The 18 inch diameter stainless steel pipe excels in transporting corrosive chemicals, high-temperature fluids, aggressive process liquids, and critical utility fluids where material integrity and system reliability are absolutely non-negotiable. Major infrastructure projects including district heating systems, thermal cooling networks, marine applications, and offshore installations specify 18 inch diameter stainless steel pipes when designing comprehensive fluid distribution networks. When selecting 18 inch diameter stainless steel pipe solutions for specific applications, senior engineers prioritize pressure ratings, material grades, wall thickness specifications, and performance characteristics matching exact operational requirements. Investment in quality 18 inch diameter stainless steel pipe systems provides measurable advantages including optimized hydraulic efficiency, reduced pumping energy requirements, extended service life, superior corrosion resistance, and system reliability compared to conventional materials in large-scale industrial and critical infrastructure applications.
Technical Specifications and Dimensional Standards for 18 Inch Diameter Stainless Steel Pipe Systems
Understanding the precise specifications and dimensional standards of 18 inch diameter stainless steel pipe ensures accurate system design, seamless integration, and reliable performance in complex industrial infrastructure. Standard 18 inch diameter stainless steel pipe outer diameter measures 18.0 inches according to ANSI/ASME B36.10 specifications, with available wall thicknesses ranging from Schedule 10 (0.188 inches) through Schedule 160 (0.562 inches), accommodating diverse pressure classifications and operational scenarios. The 18 inch diameter stainless steel pipe is manufactured in premium grades including 304, 304L, 316, 316L, and duplex variants, enabling selection of appropriate material compositions for specific corrosion resistance requirements, temperature conditions, and chemical compatibility. Seamless 18 inch diameter stainless steel pipe variants deliver maximum pressure ratings and enhanced purity essential for critical applications, while welded options provide economical alternatives for moderate-pressure systems and specialized applications. Wall thickness selection for 18 inch diameter stainless steel pipe directly influences pressure capacity, with Schedule 40 accommodating standard industrial pressures and Schedule 80 supporting elevated-pressure applications requiring enhanced structural margins. Compliance with ASTM A312, ASTM A358, EN 10217-1, and ISO 2604 international standards guarantees consistent quality, documented pressure ratings, certified material composition, and complete traceability throughout manufacturing of 18 inch diameter stainless steel pipe products.
Performance Advantages and Strategic Applications of 18 Inch Diameter Stainless Steel Pipe in Critical Infrastructure
The exceptional properties of 18 inch diameter stainless steel pipe establish it as the premier choice for large-capacity infrastructure systems demanding maximum reliability, extended service life, and operational excellence. Superior corrosion resistance ensures 18 inch diameter stainless steel pipe maintains structural integrity in marine environments, chemically aggressive processing facilities, and corrosive atmospheric conditions, dramatically reducing maintenance requirements and operational disruptions. An 18 inch diameter stainless steel pipe maintains excellent mechanical properties across extreme temperature ranges, simultaneously supporting cryogenic applications and high-temperature steam operations within complex industrial systems and critical infrastructure. Its substantial internal diameter minimizes fluid velocity and pressure drop, optimizing hydraulic efficiency, reducing energy consumption, and enabling simplified system designs compared to smaller-diameter alternatives or parallel pipeline configurations. Enhanced flow capacity of 18 inch diameter stainless steel pipe reduces overall system complexity, simplifies installation procedures, lowers project costs through material consolidation, and improves operational reliability. Companies and municipalities investing in 18 inch diameter stainless steel pipe infrastructure for major industrial and utility projects achieve substantial competitive advantages including optimized system efficiency, reduced operational energy costs, extended equipment service intervals, enhanced safety compliance, superior system reliability, measurable performance gains, and long-term cost savings compared to conventional materials or smaller-diameter alternatives in large-scale industrial, municipal, and critical infrastructure applications.
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After more than a decade of continuous investment and innovation, Feihong Steel Co., Ltd. has now developed into a leading enterprise in the industry with a complete industrial chain, a wide range of product specifications, prompt supply, excellent product quality, strong industry influence and good social reputation. Currently, our products are mainly sold to the eastern region of China and over 40 countries and regions, such as Southeast Asia, South Asia, West Asia, Eastern Europe, South America, etc. Our stainless steel series products have consistently ranked among the top in China for many years.
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 Ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
