TP347H Stainless Steel Seamless Pipe for High Temperature Fluid Service

ASTM A312 TP347H Stainless Steel Seamless Pipe for High-Temperature Fluid Service

Meet MTSCO – Experts in Seamless Pipe Solutions

MTSCO is an industrial metals supplier specializing in pipeline systems, with nearly 20 years of experience in stainless steel and alloy materials. TP347H seamless pipes are produced by HUXIN PIPE, a manufacturing partner in which MTSCO has made strategic investments. HUXIN PIPE has over 35 years of experience in seamless pipe manufacturing and holds certifications including ISO, PED, AD2000, and M650.

Through the Factory Complexes model, MTSCO integrates HUXIN PIPE into its own supply system and participates directly in production planning and quality management. This factory-direct approach reduces communication and delivery risks, enabling MTSCO to provide more reliable lead times and consistent product quality for customer projects.

From Raw Material to Seamless Pipe

In high-temperature fluid systems, the manufacturing process of seamless pipes directly affects long-term operational safety and stability. TP347H seamless pipes are produced using a hot piercing process, which eliminates weld seams and reduces leakage risks at the source. Subsequent cold rolling ensures precise control of wall thickness and outside diameter.

A critical solution annealing process stabilizes the material microstructure, improves creep resistance, and reduces performance degradation during long-term high-temperature service. MTSCO’s TP347H seamless pipes strictly follow this manufacturing route, with on-site QC teams closely monitoring key production stages. This ensures that every batch meets quality requirements and is suitable for long-term high-temperature fluid service projects.

Specifications at a Glance

Chemical Composition 

Physical Property

FAQ about TP347H Seamless Pipe

Q1: What is the maximum service temperature for TP347H seamless pipes?
A1: TP347H is suitable for long-term high-temperature service and is commonly used in fluid systems operating above 600°C. Its niobium-stabilized design helps reduce the risk of intergranular corrosion, making it suitable for continuous operation.

Q2: Does MTSCO support third-party inspection for TP347H seamless pipes?
A2: Yes. MTSCO accepts third-party inspections from organizations such as SGS, TUV, and BV and actively cooperates with project inspection requirements.

Q3: Is the delivery time stable for project procurement?
A3: With factory investment and secured production capacity, MTSCO offers stable lead times for TP347H seamless pipes, making them suitable for EPC and long-term project-based procurement.

Q4: Are customized sizes and special requirements available?
A4: Yes. MTSCO supports customization of non-standard outside diameters, wall thicknesses, and lengths, and can align inspection and packaging solutions with specific project requirements.