Stainless Steel 904L Pipes & Tubes Manufacturer & Supplier - USA Piping Solutions

Welcome to USA Piping Solution. When standard stainless steels encounter highly corrosive environments, Stainless Steel 904L Pipes and Tubes often provide the robust solution needed. We specialize in supplying these high-performance, high-alloy materials. As a leading US-based manufacturer, supplier, and stockist, we connect extensive global sourcing with dedicated, US-focused service. Providing reliable Seamless Pipes & Tubes, particularly grades like ASTM A312 TP904L, designed for severe conditions, is a core part of our expertise. Industries facing aggressive chemicals, acids, or high chloride concentrations depend on the exceptional resistance offered by quality SS 904L Tubes. Choosing USA Piping Solution means obtaining materials certified to rigorous international standards, ensuring the long-term performance critical for your demanding applications.

We recognize that selecting materials for tough corrosive challenges directly impacts safety, operational uptime, and overall lifecycle costs. This understanding drives our commitment to the quality of every 904L Stainless Steel Tubing product we offer. Available in both seamless (904L Seamless Pipe) and welded forms (904L Welded Tube), these products are engineered for superior performance. Whether you require standard dimensions shipped quickly from our inventory or need custom sizes or specific processing, USA Piping Solution is equipped to assist. Expect fully certified, premium UNS N08904 Pipe and tube, backed by our knowledgeable team and efficient global logistics.

What is Stainless Steel 904L?

Let's take a closer look at Stainless Steel 904L. Commonly specified under designations like ASTM A312 TP904L or UNS N08904, this material is a high-alloy austenitic stainless steel. What sets it apart from more common grades like 304 or 316 is its significantly enriched composition.

904L contains high levels of Nickel (around 23-28%) and Molybdenum (4-5%), along with a deliberate addition of Copper (1-2%). It also maintains a very low Carbon content (typically ≤0.02%). This unique blend results in substantially enhanced corrosion resistance, especially in aggressive media. It exhibits excellent resistance to strong reducing acids like sulfuric acid, where the copper content plays a crucial role. The high Molybdenum and Chromium (19-23%) provide superior resistance to pitting and crevice corrosion, particularly in chloride-containing solutions – often exceeding the performance of 316L. Furthermore, the high Nickel content contributes significantly to its resistance against stress corrosion cracking (SCC).

Because of this powerful combination of resistances, 904L effectively bridges the performance gap between standard austenitic stainless steels and more expensive high-nickel alloys or duplex grades for certain demanding applications. It remains non-magnetic and generally retains good toughness and weldability (especially due to the low carbon). Its European designation is commonly DIN 1.4539. When facing conditions involving moderate to strong acids, high chlorides, or risks of stress corrosion cracking, Stainless Steel 904L Pipes become a primary candidate material.

SS 904L Pipe & Tube Specifications: Key Details

Ensuring materials meet precise technical criteria is vital for reliability in severe service. USA Piping Solution supplies SS 904L Tubes and pipes manufactured and tested according to strict industry standards.

Technical Specifications Overview

• Governing Standards:
  • Pipe: ASTM A312 / ASME SA312, ASTM B677 / ASME SB677, ASTM B673 / ASME SB673
  • Tube: ASTM A213 / ASME SA213, ASTM A269
• Manufacturing Process: Seamless and Welded (ERW, EFW, etc.).
• Size Range (OD): Pipe 1/8" - 24"+, Tubing fractional to several inches.
• Wall Thickness (WT): Pipe Schedules (5S, 10S, 40S, 80S+); Tubing various WTs/Gauges.
• Lengths: SRL, DRL, custom cut; coils available.
• End Finishes: Pipe Plain End (PE) or Beveled End (BE); tubing plain cut.

Inside the Alloy: Chemical Composition and Mechanical Strength

The Chemical Recipe (Typical Weight % for UNS N08904)

Element	Content (%)	Key Role in 904L's Performance
Carbon (C)	≤ 0.02	Max corrosion resistance, esp. after welding
Chromium (Cr)	19.0 – 23.0	Passivation & corrosion resistance
Nickel (Ni)	23.0 – 28.0	Boosts acid/SCC resistance, stabilizes austenite
Molybdenum (Mo)	4.0 – 5.0	Pitting/crevice corrosion resistance
Copper (Cu)	1.0 – 2.0	Resistance to reducing acids
Manganese (Mn)	≤ 2.00	Strength, hot workability
Silicon (Si)	≤ 1.00	Deoxidizer
Phosphorus (P)	≤ 0.045	Impurity, limited
Sulfur (S)	≤ 0.035	Impurity, limited

Typical Mechanical Strengths (Minimum values, annealed)

Property	Minimum Value	Significance
Tensile Strength	490 MPa (71 ksi)	Good ultimate strength
Yield Strength	220 MPa (32 ksi)	Resists permanent deformation
Elongation	35%	High ductility and good formability

Common Forms of SS 904L Pipes & Tubes

1. Round: For fluid handling, heat exchange, structural uses.
2. Square & Rectangular: Structural framing, supports, architecture.
3. Coiled Tubing: Long continuous runs for control lines, etc.
4. Custom Shapes: Feasibility depends on project specifics.

Where SS 904L Is Applied: Industries and Uses

1. Chemical Processing: Sulfuric, phosphoric, acetic acids handling.
2. Marine & Offshore: Superior seawater resistance.
3. Pharmaceuticals: Corrosive intermediate handling and aggressive cleaning cycles.
4. Oil & Gas: Sour gas environments, corrosive production fluids.
5. Heat Exchangers/Condensers: Cooling water/brackish water applications.
6. Pollution Control: FGD scrubbers, acidic ductwork.
7. Pulp & Paper: Bleaching chemicals handling.

Finding Your Size: SS 904L Pipe & Tube Dimensions

USA Piping Solution stocks commonly required sizes:

• Pipe (NPS): 1/2" - 16" seamless; larger welded.
• Tubing (OD): 1/4" up to several inches.
• Wall Thickness: Pipe Schedules 10S, 40S, 80S; Tubing various WTs/Gauges.

Type	Example Size	Example Schedule/Wall
Pipe	4" NPS	Sch 40S
Tube	1" OD	0.065" WT (16 Ga)

Quality You Can Trust: Certifications and Compliance

• Standards: ASTM/ASME compliance (A312, B677, etc.).
• Quality System: ISO 9001:2015 certification.
• MTRs: EN 10204 3.1 or 3.2 certs available.
• Industry Specs: NACE MR0175 compliance possible.
• TPI: Third-party inspections upon request.
• Testing: Full required mechanical/corrosion testing done.

Why Choose USA Piping Solutions for Your SS 904L?

1. High-Alloy Focus: Expertise in 904L and similar grades.
2. Good Inventory: Stocked 904L Pipes and Tubes.
3. Global Sourcing: Access to top mills worldwide.
4. Reliable Shipping: Domestic and global logistics expertise.
5. Value-Added Services: Cutting, prepping, custom testing support.
6. Compliance: Full documentation and certification assurance.
7. Industry Trust: Trusted by sectors demanding high-alloy solutions.

Considering Other Stainless Steel Options?

If Stainless Steel 904L isn't the exact match, USA Piping Solutions also offers:

Ready to Source Your Stainless Steel 904L?

Looking for premium Stainless Steel 904L Pipes & Tubes offering exceptional corrosion resistance for critical applications? When conditions get tough, USA Piping Solutions is your trusted supplier.

We provide high-quality SS 904L pipes and tubes (ASTM A312 TP904L, UNS N08904) meeting demanding specifications. Backed by full certifications, competitive pricing, and efficient worldwide shipping, we deliver reliable solutions for chemical processing, marine, oil & gas, and pharmaceutical industries. Get the robust 904L Seamless Pipe or 904L Welded Tube your project demands.

Contact us today! Request a quote or discuss your needs with our technical sales team.

Request Your Stainless Steel 904L Quote Today!