S347H tube refers to a niobium-stabilized high-carbon austenitic stainless steel tube, designed for the oil industry's harsh conditions. It boasts excellent high-temperature strength, corrosion resistance and creep resistance, solving pipeline corrosion, deformation and damage in oil exploration, drilling, refining and transportation. Contact us to get free quote and sample!
stainless steel 347h pipe High-Temperature Performance
With a carbon content of 0.04%-0.10%, Stainless steel 347H tube has better high-temperature strength and creep resistance than ordinary 347 stainless steel. It maintains stability at 427°C to 816°C, adapting to oil refining furnaces and heat exchangers, and avoids deformation or fracture during long-term high-temperature operation.
ss347h tube Corrosion Resistance
Niobium in S347H tube prevents chromium carbide precipitation and intergranular corrosion, resisting crude oil, acids, seawater and offshore salt fog.
s347h pipe High Mechanical Strength
With a minimum tensile strength of 515 MPa, SS347H tube withstands high pressure in oil transportation and drilling. It resists stress corrosion cracking, avoiding leakage from pressure changes and ensuring operational safety.
Application Scenarios of S347H Tube in Oil Industry
Oil Drilling and Exploration
S347H tube is used for drill pipes, casing and tubing in downhole drilling. Its high-temperature, corrosion and pressure resistance reduces drilling tool failure, making it ideal for deep and ultra-deep well operations.
Oil Refining Process
Widely used in refineries for heat exchangers, furnace tubes and reactor pipelines, S347H pipe withstands high temperatures and chemical corrosion, ensuring equipment operation and reducing maintenance costs.
Oil and Gas Transportation
S347H tube is suitable for long-distance and offshore oil/gas transportation, resisting seawater corrosion and temperature/pressure fluctuations. It has a longer service life than carbon steel pipes, lowering overall operation costs.
Offshore Oil Platform Equipment
Used for water injection, oil/gas gathering and heat exchanger pipelines on offshore platforms, S347H tube resists marine corrosion and high temperature/pressure, ensuring stable and safe offshore production.

Why Choose Our S347H Tube for Your Oil Project?
Strict Quality Control
Our S347H tube meets ASTM, EN, JIS, GB standards, with full testing reports. Strict inspection on raw materials and finished products ensures compliance with oil industry requirements.
Customizable Specifications
We provide customized S347H tube (outer diameter 6-1016 mm, thickness 1-65 mm, length up to 18 meters) to fit drilling, refining and transportation needs.
Competitive Price and Timely Delivery
With our own production base and supply chain, we offer competitive prices. In-stock products ship within 1 week, customized products take 15-60 days, ensuring project schedules.
Professional After-Sales Service
Our team provides technical guidance, installation advice and after-sales support, responding quickly to solve usage issues and support long-term cooperation.





