Home > Stainless Steel > Stainless Steel 347H Pipes
Stainless Steel 347H Pipesare pipe products made from alloy 347H, a high carbon variant of stainless steel 347. These pipes deliver outstanding resistance to elevated temperatures and corrosion, which makes them appropriate for use in sectors like petrochemicals, refineries, and thermal processing units. Thanks to their increased carbon content, they offer improved strength and durability in challenging conditions. Stainless steel 347H pipes are recognized for their long service life, dependability, and adaptability across a range of applications that demand strong corrosion resistance and stability at high temperatures.
| Dimensions | : | ASTM, ASME and API |
|---|---|---|
| Standard | : | ASTM A312 / ASME SA312 |
| Size | : | 1/8″NB TO 30″NB IN |
| Specialized in | : | Large Diameter Size |
| Schedule | : | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Form | : | Round, Square, Rectangular, Hydraulic Etc |
| Type | : | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
| Length | : | Single Random, Double Random & Cut Length. |
| End | : | Plain End, Beveled End, Threaded |
| Element | C | Cr | Mn | Ni | P | S | Si | Cb/Ta |
|---|---|---|---|---|---|---|---|---|
| 347H | min: 0.04 max: 0.10 | min: 17.0 max: 20.0 | 2.0 max | min: 9.0 max: 13.0 | 0.03 max | 0.30 max | 0.75 max | min:10x C max: 1.0 |
| Grade | Density | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | 347H | 8.0 g/cm3 | 515 | 40 | 205 | – |
At Koasteel, we take pride in being the largest supplier and manufacturer in the New Zealand, delivering advanced solutions for every one of your piping requirements. With cutting-edge production facilities strategically situated in the New Zealand, we maintain an extensive inventory of more than 25,000 tons of top-quality materials kept ready in stock.
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We supply these Stainless Steel 347H Pipe in accordance with DIN, ISO, JIS or ANSI Standard.
Stainless Steel 347 Pipe uses are as varied as the sectors they support, led mainly by the aerospace, railway, construction and automotive sectors along with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
Stainless Steel 347 Pipesare extremely resistant to rust and corrosion thanks to their chromium and nickel content. Nevertheless, in some extreme situations such as extended exposure to elevated temperatures or highly corrosive surroundings, there could be a chance of localized corrosion, like pitting or crevice corrosion. Adequate upkeep and steering clear of severe conditions can help reduce the chance of rusting, guaranteeing the durability and performance of stainless steel 347 pipes.
To maintain stainless steel 347 pipes, clean them routinely with mild soap and water to eliminate surface contaminants and debris. Steer clear of harsh or abrasive cleaners that might harm the protective oxide layer. Examine the pipes at regular intervals for indications of corrosion or damage, particularly in high-temperature or corrosive settings. Deal with any problems quickly to stop further deterioration. In addition, think about applying a protective coating or passivation treatment to improve corrosion resistance. Careful handling and storage can likewise help preserve the integrity of the pipes.
Yes, stainless steel 347 pipes can be joined by welding through widely used methods like TIG (tungsten inert gas) welding, MIG (metal inert gas) welding, and SMAW (shielded metal arc welding). Nevertheless, it’s essential to apply low heat input and appropriate filler materials to avoid sensitization and maintain corrosion resistance. Preheating and post-weld heat treatment might be required to reduce the chance of intergranular corrosion and safeguard the soundness of the weld joint. In general, correct welding procedures and precautions ought to be observed to produce strong and long-lasting welds in stainless steel 347 pipes.
Stainless steel 347 pipes are dimensioned according to their nominal pipe size (NPS), which denotes the approximate inside diameter. Typical sizes span from 1/8 inch up to 36 inches in diameter. Furthermore, stainless steel pipes are usually defined by their schedule, which reflects the wall thickness. Common schedules include SCH 5, SCH 10, SCH 40, and SCH 80, among others. Choosing the right pipe size relies on factors like flow rate, pressure needs, and compatibility with existing piping systems.