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From Hamilton, New Zealand, Blundell Pipes and Tubes has built a strong reputation for reliability and precision, serving a wide range of industries with top-tier materials. Our Stainless Steel 304H seamless pipes are a prime example of this commitment. We understand that demanding environments require components you can count on, which is why we meticulously control the manufacturing of these pipes, ensuring they meet the highest standards for performance and longevity right from our local workshop.
The strength of 304H lies in its carefully balanced composition. It’s an austenitic chromium-nickel steel with a key difference: a higher carbon content than standard 304. This specific feature gives the material enhanced strength, particularly at elevated temperatures. Through the seamless manufacturing process, the resulting pipes exhibit excellent tensile strength and yield strength, allowing them to maintain their structural integrity and resist deformation under significant pressure and heat.
Range : 6NB to 1200NB
Outer Diameter : 1/8″ NPS to 12″ NPS
Thickness : 0.6 mm to 12.7 mm
Schedules : SCH. 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, XXS.
Length : Single Random, Double Random & Cut Length
Specifications : ASTM A312 / ASTM SA312
Types : Round, Square, Rectangle, Hydraulic, Honed Tubes
End : Plain End, Beveled End
| STANDARD | UNS | WERKSTOFF NR. |
| SS 304H | S30409 | 1.4301 |
| Ni | 8 – 11 |
| Fe | Balance |
| Cr | 18 – 20 |
| C | 0.04 – 0.10 |
| Si | 0.75 max |
| Mn | 2 max |
| P | 0.045 max |
| S | 0.030 max |
| N |
| Grade | 304H |
| Tensile Strength (MPa) min | 515 |
| Yield Strength 0.2% Proof (MPa) min | 205 |
| Elongation (% in 50mm) min | 40 |
| Hardness | |
| Rockwell B (HR B) max | 92 |
| Brinell (HB) max | 201 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Stainless Steel 304H Seamless Pipes from Blundell Pipes and Tubes ensures high quality and durability, as these tubing offer excellent corrosion resistance and strength. Our commitment to exceptional service and reliable delivery guarantees customer satisfaction across various industrial applications. Our expertise in stainless steel products ensures you receive a top-tier solution tailored to your needs.
Blundell Pipes and Tubes, one of the largest suppliers of Stainless Steel 304H Seamless 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.
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 304H | S30409 | 304S51 | – | 1.4948 | X2CrNi19-11 | – | – |
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
| 0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
| 304H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Yes, we offer custom sizes for Stainless Steel 304H Seamless Pipes to meet your specific requirements. Our team at Blundell Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@blundellpipes.co.nz.
These Stainless Steel 304H Seamless Pipes find extensive applications in boilers, superheaters, heat exchangers, and piping systems within petrochemical, chemical, and power generation facilities. They are also utilized in oil and gas refineries, marine settings, and other sectors where high-temperature performance, corrosion resistance, and structural integrity are crucial. Furthermore, these pipes are ideal for process piping, exhaust systems, and industrial applications that require long-lasting durability and reliability. Their seamless construction, combined with high-temperature strength and corrosion resistance, makes Stainless Steel 304H Seamless Pipes the perfect choice for demanding industrial and commercial needs.
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