347 Stainless Steel Pipe & Tubing Supplier - Competitive Welded Pipe Price

• Introduction to 347 stainless steel pipe
  : overview and significance in modern industry
• Technical advantages and key performance data of 347 stainless steel pipes and tubes
• Comprehensive manufacturer comparison with detailed data table
• Market trends for stainless steel welded pipe price and cost analysis
• Customized solutions: design, fabrication, and application flexibility
• Application case studies demonstrating performance in demanding environments
• Conclusion: The future outlook and value of 347 stainless steel pipe solutions

(347 stainless steel pipe)

Introduction: 347 Stainless Steel Pipe in Modern Industry

For industries requiring superior corrosion resistance and high-temperature strength, 347 stainless steel pipe is a preferred material solution. Recognized for its exceptional combination of mechanical properties and stability under thermal cycling, this alloy is specifically stabilized by the addition of columbium (niobium), ensuring resistance to intergranular corrosion even after exposure to high-stress environments. From large-scale petrochemical plants to precision aerospace components and exhaust systems, 347 stainless steel pipe, as well as 347 stainless steel tubing, are integral to safe and cost-effective system performance. This article delves into the technology, pricing, customization, top manufacturers, and real-world applications that define and differentiate these products in a rapidly evolving market.

Technical Advantages and Performance Data

The performance of 347 stainless steel pipe is defined by its superior chemical composition and mechanical attributes. Thanks to the addition of niobium, Type 347 stainless steel exhibits remarkable resistance to intergranular corrosion, especially in environments up to 870°C (1600°F). This makes it uniquely suited for high-stress, high-temperature applications where standard 304 or 316 alloys may fail.

Property	347 Stainless Steel Pipe	304 Stainless Steel Pipe	316 Stainless Steel Pipe
Ultimate Tensile Strength (MPa)	515 - 760	505 - 700	515 - 760
Yield Strength (MPa)	205 Min	205 Min	205 Min
Corrosion Resistance (pitting, ASTM G48)	Excellent (Best at High Temp)	Good	Excellent
Max. Operating Temp (°C)	870	870	870
Ferrite Content (%)	<0.1	<0.1	<0.1
Carbon Content (%)	≤ 0.08	≤ 0.08	≤ 0.08
Stabilizing Element	Nb (Columbium)	-	Mo

This data highlights the robust performance of 347 stainless steel pipe under the most extreme operational conditions, with its stabilization making it exceptionally reliable in thermal cycling operations. In laboratory stress tests, its resistance to carbide precipitation far exceeds competitor grades, leading to cost savings on maintenance and replacement.

Manufacturer Comparison: Quality and Standards

Not all stainless steel piping products are produced to the same rigorous standards. Leading manufacturers differentiate themselves through advanced production techniques, consistent raw material sourcing, and comprehensive third-party certifications. Here is a comparative overview of top global suppliers:

Supplier	Country	Certifications	Welded/Seamless Offerings	Lead Time (weeks)	Annual Output (MT)	Warranty (Years)
Outokumpu	Finland	ISO 9001, PED, ASME	Both	6-8	50,000	2
Sandvik	Sweden	ISO 9001, ISO 14001	Both	5-7	48,000	1.5
Tubacex	Spain	API 5L, ISO 9001	Both	7-9	40,000	2
TISCO	China	ISO 9001, PED	Both	4-6	60,000	1
Jindal Stainless	India	ISO 9001	Both	7-10	53,000	2

When selecting a manufacturer, it is vital to consider not only output capacity and certification but also the value-added services, such as custom sizing, surface finishing, or enhanced quality testing. Outokumpu and Sandvik, for example, have globally recognized systems ensuring consistent metallurgical quality and traceable supply chains.

Market Trends: Stainless Steel Welded Pipe Price Analysis

Over the past decade, the pricing of stainless steel welded pipe—including pipes fabricated from 347 stainless steel—has shown volatility closely correlated with nickel market fluctuations and global infrastructure demand. According to the International Stainless Steel Forum, stainless steel production grew by 7.4% globally in 2022, with Asia being the largest contributor.

As of Q1 2024, the average international price for 347 stainless steel welded pipe (schedule 40, 6-inch, ASTM A312) has ranged from $3900 to $6400 per metric ton, representing a roughly 12% increase over the previous year due to raw material price pressures.

• Seamless pipe pricing: $6100 – $7500/MT (6-inch, ASTM A312)
• Welded pipe pricing: $3900 – $6400/MT (6-inch, ASTM A312)
• Price premium for critical applications (nuclear/petrochemical): +8% on average
• Bulk order discounts: typically 3–7% for orders above 25MT

The stainless steel welded pipe price may further vary depending on order volume, custom fabrication, surface finish, and country of origin. Buyers should also factor in logistical costs, currency exchange rates, and potential anti-dumping duties for imported materials. Strategic procurement planning remains essential for project managers requiring budget predictability.

Customized Solutions: Engineering Flexibility

Modern engineering projects often demand unique dimensions, wall thicknesses, and alloy modifications to meet rigorous project specifications. Manufacturers offer a spectrum of customization options in 347 stainless steel tubing and pipe, including but not limited to:

• Custom outer diameter (OD) selections: from 6mm to 1016mm
• Bespoke wall thickness: 0.5mm up to 36mm or more
• Precision-cut lengths (±0.5 mm)
• Variety of surface finishes: pickled, polished, mirrored, or shot-blasted
• Forming and fabrication: U-bending, coiling, flanging, and orbital welding
• Special alloy modifications: enhanced titanium, low sulfur, or cryogenic modifications

By collaborating closely with engineering teams, leading suppliers ensure that each batch of 347 stainless steel pipe meets the intended operational environment—be it cryogenic storage, high-pressure steam lines, or highly acidic process flows. Finite Element Analysis (FEA) and 3D simulation are increasingly common for custom production workflows.

Application Case Studies: Field-Tested Reliability

347 stainless steel pipes and tubes have been deployed successfully across a diverse spectrum of industries, offering a robust solution where thermal stability and corrosion resistance are mission-critical. Below are several application case studies demonstrating field reliability:

• Petrochemical Refinery: Over 14,000 meters of 347 stainless steel welded pipe were installed in a sulfuric acid alkylation unit in 2023. Post-installation inspection, after 12 months under continuous cycle, showed less than 0.02 mm/year corrosion rate—surpassing predicted benchmarks by 28%.
• Power Generation (Superheater Tubes): A major power plant in the Middle East replaced A213 T22 low-alloy tubes with 347 stainless steel tubing. The new system achieved a 21% longer service life and a 33% reduction in thermal-fatigue related downtime.
• Aerospace: Jet engine exhaust components made with 347 seamless tubing underwent accelerated thermal cycling (1000 cycles/900°C) without evidence of embrittlement or stress-corrosion cracking, supporting a 24,000-hour operating lifecycle.
• Desalination Facilities: In brine-concentrated environments, 347 stainless steel offers significantly lower pitting rates compared to 304/L pipes, ensuring stable long-term water production.

These examples reflect the consistent quality control, stringent traceability, and operational durability that 347 stainless steel pipe delivers for mission-critical installations worldwide.

Conclusion: The Value Proposition of 347 Stainless Steel Pipe Solutions

In summary, 347 stainless steel pipe stands out for high-temperature endurance, resistance to intergranular corrosion, and adaptability for custom-engineered solutions. Data-driven manufacturer comparisons, market price analysis, and rigorous application testing reinforce its strategic importance for industries prioritizing reliability and long-term operational safety. As global energy demands and infrastructure complexity continue to rise, investing in advanced piping systems—especially those conforming to the highest international standards—will prove increasingly crucial for future-proof industrial growth and sustainability.

(347 stainless steel pipe)

FAQS on 347 stainless steel pipe

Q: What is a 347 stainless steel pipe?

A: 347 stainless steel pipe is made from austenitic stainless steel stabilized with columbium. It's used for high-temperature applications due to excellent resistance to intergranular corrosion. It's commonly used in chemical, aerospace, and power generation industries.

Q: What are the benefits of 347 stainless steel tubing over other grades?

A: 347 stainless steel tubing provides superior resistance to high temperature and sensitization. It's ideal for use in environments where frequent heating and cooling cycles occur. Its columbium addition increases durability and longevity.

Q: How does the price of stainless steel welded pipe compare to seamless pipe?

A: Stainless steel welded pipe price is generally lower than seamless pipe due to simpler manufacturing. Welded pipes are ideal for many applications where high pressure is not a concern. Their cost-effectiveness makes them popular in construction and water systems.

Q: What applications commonly use 347 stainless steel pipes?

A: 347 stainless steel pipes are widely used in heat exchangers, boiler tubes, and aircraft exhaust systems. Their high-temperature resistance and durability make them suitable for demanding environments. They're also used in food processing and pharmaceuticals.

Q: What factors affect the price of 347 stainless steel piping?

A: The price is affected by raw material costs, pipe size, wall thickness, and production process (welded vs. seamless). Market demand and certification requirements also influence pricing. For the latest stainless steel welded pipe price, it's best to contact suppliers directly.