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304H Stainless Steel Pipe

High-Temp & High-Strength

Product Name: 304H Stainless Steel Pipe / Tube
Standard: ASTM A312, ASTM A213, ASTM A269
Grade: 304H (UNS S30409, EN 1.4948)
Outside Diameter (OD): 10.3 – 914 mm (customizable)
Wall Thickness (WT): 0.8 – 50 mm (SCH 5S to SCH XXS, customizable)
Length: 1 – 12 meters (or cut to length)
Surface Finish: Annealed & Pickled, Bright Annealed (BA)
Tensile Strength: ≥ 515 MPa
Yield Strength (0.2% Offset): ≥ 205 MPa
Elongation: ≥ 40% (in 50mm)
Hardness (Brinell): ≤ 201 HBW
Density: 8.0 g/cm³
MOQ: 2 Tons

Free Samples Available!
Experience the quality of our products firsthand—request your free sample today. We’re here to help and welcome your inquiries.

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304H Stainless Steel Pipes by TISCO Steel Group (Jiangsu)

TISCO Steel Group (Jiangsu) Co., Limited is your trusted partner for premium stainless steel solutions. As a leading distributor, we have direct access to top-tier mills including TISCO, Tsingshan, BAOSTEEL, and ANSTEEL, ensuring a reliable supply of the highest quality materials. Our stringent quality control and expert logistics guarantee that your orders arrive on time and to specification, every time.

Why Choose 304H Stainless Steel Pipes?
304H is the high-carbon variant of the classic 304 grade. The elevated carbon content enhances its strength and, most importantly, its resistance to sensitization and excellent creep strength at elevated temperatures (up to ~815°C / 1500°F). This makes it the ideal choice for high-temperature applications such as pressure vessels, heat exchangers, boilers, superheaters, and piping systems in power generation, petrochemical, and chemical processing industries.

However, it is crucial to note that its higher carbon content slightly reduces its formability and weldability compared to 304/L. For applications where welding is extensive and operating temperatures are lower, 304L is often preferred to avoid carbide precipitation.

We provide a comprehensive range of 304H pipes with full Mill Test Certification (MTC) traceable to the original mill, ensuring compliance with international standards. Our technical team is on hand to help you select the right material for your project, balancing performance, cost, and longevity.

Contact us today for a competitive quote and experience the difference that comes with partnering with a professional supplier.

Common Surface Treatments

Product Detail Sheet

Product Name304H Stainless Steel Pipe
Processing TechniquesAustenitic,Ferritic,Martensitic,Duplex,Cold Rolling,Hot Rolling
Grade201, 202, 301, 304, 304L, 309S, 310S, 316, 316L, 321, 409, 410, 410S, 430, 630, 2205, 2507 etc
Austenitic stainless steel200 Series: 201, 202
300 Series: 304, 304L, 309S, 310S, 316, 316L, 316Ti, 317L, 321, 347
Ferritic stainless steel409L, 430, 436, 439, 441, 444, 446
Martensitic stainless steel410, 410S, 416, 420J1, 420J2, 431,440,17-4PH
Duplex and special stainless steelS31803, S32205, S32750, 630, 904L
StandardASTM, GB,DIN, JIS etc
SurfaceN0.1, N0.4, 2D, 2B, HL, BA, 6K, 8K, etc
Delivery time3 to 15 days, subject to the customer and quantity
PackagingStandard export package
MOQ2 Tons
SampleFree sample application

Common Chemical Properties

UNSASTMENJISC%Mn%P%S%Si%Cr%Ni%Mo%
S201002011.4372SUS201≤0.155.5-7.5≤0.06≤0.03≤1.0016.0-18.03.5-5.5–
S202002021.4373SUS202≤0.157.5-10.0≤0.06≤0.03≤1.0017.0-19.04.0-6.0–
S301003011.4319SUS301≤0.15≤2.00≤0.045≤0.03≤1.0016.0-18.06.0-8.0–
S304003041.4301SUS304≤0.08≤2.00≤0.045≤0.03≤0.7518.0-20.08.0-10.5–
S30403304L1.4306SUS304L≤0.03≤2.00≤0.045≤0.03≤0.7518.0-20.08.0-12.0–
S30908309S1.4833SUS309S≤0.08≤2.00≤0.045≤0.03≤0.7522.0-24.012.0-15.0–
S31008310S1.4845SUS310S≤0.08≤2.00≤0.045≤0.03≤1.5024.0-26.019.0-22.0–
S316003161.4401SUS316≤0.08≤2.00≤0.045≤0.03≤0.7516.0-18.010.0-14.02.0-3.0
S31603316L1.4404SUS316L≤0.03≤2.00≤0.045≤0.03≤0.7516.0-18.010.0-14.02.0-3.0
S31703317L1.4438SUS317L≤0.03≤2.00≤0.045≤0.03≤0.7518.0-20.011.0-15.03.0-4.0
S321003211.4541SUS321≤0.08≤2.00≤0.045≤0.03≤0.7517.0-19.09.0-12.0–
S347003471.455SUS347≤0.08≤2.00≤0.045≤0.03≤0.7517.0-19.09.0-13.0–
S405004051.4002SUS405≤0.08≤1.00≤0.04≤0.03≤1.0011.5-14.5≤0.60–
S409004091.4512SUS409≤0.08≤1.00≤0.045≤0.03≤1.0010.5-11.75≤0.50–
S430004301.4016SUS430≤0.12≤1.00≤0.040≤0.03≤0.7516.0-18.0≤0.60–
S434004341.4113SUS434≤0.12≤1.00≤0.040≤0.03≤1.0016.0-18.0––
S444004441.4521SUS444L≤0.025≤1.00≤0.045≤0.03≤1.0017.5-19.5≤1.00–
S40300403–SUS403≤0.155.5-7.5≤0.04≤0.03≤0.5011.5-13.0≤0.60–
S4100004101.40006SUS410≤0.15≤1.00≤0.035≤0.03≤1.0011.5-13.5≤0.60≤1.00
S420004201.4021SUS420J10.16~0.25≤1.00≤0.04≤0.03≤1.0012.0-14.0≤0.75≤1.00
S440A440A1.4028SUS440A0.60~0.75≤1.00≤0.04≤0.03≤1.0016.0-18.0–≤0.75
S32750SAD25071.441 ≤0.03≤1.2≤0.035≤0.02≤0.8024.0-26.06.0-8.03.0-5.0
S31803SAF22051.4462 ≤0.03≤2.0≤0.03≤0.02≤1.0021.0-23.04.0-6.52.5-3.5
N08904904L1.4539 ≤0.0.3≤2.0≤0.035≤0.03≤1.0018.0-20.023.0-25.03.0-4.0

Stainless Steel Material Properties

GradesTensile Strength（ksi）Yield strength（ksi）2-inch Elongation (%)Section Shrinkage (%)Brinell Hardness
301110406070165
30290405570150
30390355055160
30485355570150
304L80305570140
31685356070150
316L78305565145
32185355565150
41075403570155
41675403065155
420955025–241
430F80452550165
15-516014515–330
17-4 (Condition A)1501101045332

Packaging & Shipping

📦 Advanced Protective Packaging
Every stainless steel product undergoes a meticulous, multi-layer packaging process designed to endure complex logistics challenges. We utilize VCI (Vapor Corrosion Inhibitor) rust-inhibiting film, reinforced steel-edge protectors, and customized wooden crates to prevent moisture damage, deformation, and handling accidents. Each package is clearly marked with product details and barcodes for full traceability and operational safety—guaranteeing your order arrives in perfect condition.

🚢 Trusted Shipping Partnerships
We collaborate with globally recognized container lines including ONE, ZIM, MSC, MAERSK, and COSCO, providing flexible and reliable freight solutions to major ports across North America, Europe, Southeast Asia, and beyond. Whether your needs require FOB, CIF, or EXW terms, we manage booking, documentation, and customs clearance to ensure seamless door-to-door delivery.

⏱️ On-Time Global Delivery
With established relationships with tier-1 carriers and experienced project logistics teams, we deliver on commitment—on schedule, on specification, and within budget. You receive not just premium stainless steel, but a logistics experience built on reliability and global execution capability.

Industry Application

🔗 The Value of Stainless Steel
Stainless steel is globally recognized for its outstanding corrosion resistance, strength, and adaptability—serving as an essential material across sectors such as construction, medical equipment, automotive manufacturing, and food processing. Yet, sourcing the appropriate grade involves navigating intricate specifications, diverse international standards, and unpredictable supply chain dynamics.

⚙️ How TISCO Simplifies Sourcing
At TISCO Steel Group (Jiangsu) Co., Limited, we streamline stainless steel procurement. As your dedicated supply partner, we deliver customized solutions—from precise material recommendations and fully certified quality assurance to tailored processing and dependable global shipping—all designed to match your project’s exact needs.

📞 Connect with Us
Explore our product portfolio online, request a personalized quote, or consult directly with our technical specialists. Let TISCO provide the reliable stainless steel solution your project deserves.

FAQ

  1. What is the main difference between 304, 304L, and 304H?
    The key difference is carbon content. 304H has a higher carbon content (0.04-0.10%) for high-temperature strength, while 304L has a lower carbon content (≤0.030%) to prevent sensitization during welding. Standard 304 sits in between.

  2. What is the maximum continuous service temperature for 304H?
    It can be used in continuous service at temperatures up to approximately 815°C (1500°F).

  3. Is 304H stainless steel weldable?
    Yes, but it is susceptible to carbide precipitation (sensitization) in the heat-affected zone. For applications in corrosive environments post-welding, it may require solution annealing or the use of low-carbon filler metals.

  4. Do you provide Mill Test Certificates (MTC)?
    Yes, we supply a complete MTC with every shipment, providing traceability and verifying compliance to the specified standards.

  5. What applications is 304H most suitable for?
    It is ideal for high-temperature applications like pressure vessels, heat exchanger tubes, boiler systems, and superheaters in power plants and refineries.

  6. Can you supply customized sizes and lengths?
    Absolutely. We can provide pipes cut to length and in various schedules (wall thicknesses) to meet your specific project requirements.

  7. What is your minimum order quantity (MOQ)?
    Our standard MOQ is 2 tons, but we can accommodate smaller orders for sample testing or specific projects. Please contact us to discuss.

  8. What forms of payment do you accept?
    We accept T/T (Wire Transfer), Irrevocable Letter of Credit (L/C), and other secure payment methods.

  9. What is the typical lead time?
    For standard sizes in stock, lead time is short. For large or custom orders, we will provide a precise production schedule upon inquiry.

  10. How do you ensure the pipes are protected during shipping?
    We use export-worthy packaging with VCI rust-proof paper, wooden crates, and end caps to prevent damage during international transit.

Additional Services

We provide value-added services including rough machining, heat treatment, cutting, machining, rolling, welding, and surface treatment to ensure your finished product is delivered ready for finishing. All forgings are rough machined according to your specifications and include Mill Test Reports (MTR), Mechanical and Physical Property Reports, as well as Ultrasonic, X-Ray, and Non-Destructive Testing (NDT) reports (as ordered or specified).

By choosing TISCO Steel Group (Jiangsu) Co., Limited, you will receive professional solutions tailored to your needs.

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