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Blundell Pipes and Tubes, based in Hamilton, New Zealand, has built a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 304H Pipes. Known for their precision-engineered and high-performance piping solutions, the company strictly adheres to quality standards to cater to the needs of demanding industrial applications. Their Stainless Steel 304H Pipes boast impressive durability, heat resistance, and structural reliability. With state-of-the-art manufacturing facilities, a customer-centric approach, and efficient supply capabilities, Blundell Pipes and Tubes serves a diverse array of industries, including petrochemical, construction, power generation, and chemical processing, both locally and internationally.
Stainless Steel 304H Pipes are made up of chromium (18–20%) and nickel (8–10.5%), with that extra carbon content enhancing their high-temperature strength and resistance to thermal stress. They boast a tensile strength of around 515 MPa, yield strength of 205 MPa, and an elongation of 40%, which translates to excellent mechanical stability, toughness, and corrosion resistance. These pipes hold their integrity even under thermal cycling and in harsh chemical and industrial environments, making them a reliable choice for critical high-temperature applications.
| Specifications | ASTM A312, A358 / ASME SA312, SA358 |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24″ NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Thickness Range | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Type | Seamless / ERW / Welded / Fabricated / CDW |
| Form | Round Pipes, Square Pipes, Rectangular Pipes |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Beveled End, Treaded |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements |
| Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| EN 10216-5 | EN 10216 304H Seamless Steel Pipe, EN 10216-5 1.4948 Seamless Steel Pipes for pressure purposes |
| EN 10217-7 | EN 10217 304H Welded Steel Pipe, Steel EN 10217-7 1.4948 Welded Pipes for pressure purposes |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304H | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 10.5 | – |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| SS 304H | 515 | 205 | 40 | 92 | 201 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Stainless Steel 304H Pipes is an austenitic stainless steel grade that features a higher carbon content, enhancing its strength at high temperatures and its resistance to creep. Typically, its composition includes chromium (18–20%), nickel (8–11%), carbon (0.04–0.10%), along with smaller amounts of manganese, silicon, phosphorus, and sulfur. The mechanical properties of this material include high tensile and yield strength, exceptional durability, and improved stability when exposed to elevated temperatures. These traits make Stainless Steel 304H Pipes perfect for applications that require consistent heat exposure and robust structural integrity.
Blundell Pipes and Tubes, one of the largest suppliers of Stainless Steel 304H pipes in Hamilton, New Zealand, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.
You’ll find Stainless Steel 304H Pipes widely used in industries that operate under high-temperature and high-pressure conditions. It’s a go-to choice for boilers, heat exchangers, superheaters, and pressure vessels due to its superior heat resistance. This material is also well-suited for steam pipelines, refinery systems, petrochemical processing units, and power generation plants. Its strong mechanical stability and corrosion resistance make it ideal for furnace components and high-temperature structural applications. This blend of durability, strength, and thermal reliability makes Stainless Steel 304H Pipes a top pick in critical industrial environments.
You’ll find Stainless Steel 304H Pipes commonly used in boilers, heat exchangers, superheaters, and piping systems within petrochemical, chemical, and power generation plants. They’re also utilized in oil and gas refineries, marine settings, and other industries that demand corrosion resistance and high-temperature performance. Plus, they’re perfect for structural, exhaust, and process piping applications where durability, reliability, and long-term performance are key. The blend of high-temperature strength, corrosion resistance, and mechanical stability makes Stainless Steel 304H Pipes a go-to option for challenging industrial and commercial needs.
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