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6-813mm Outer Diameter 321 Stainless Steel Seamless Pipe for High Pressure Hydraulic System

Name: 6-813mm Outer Diameter 321 Stainless Steel Seamless Pipe for High Pressure Hydraulic System
Brand: ShanXi TaiGang Stainless Steel Co.,Ltd
SKU: SS321-813-HP
Price: 3,900.00 USD
Availability: InStock

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6-813mm Outer Diameter 321 Stainless Steel Seamless Pipe for High Pressure Hydraulic System

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Product Details:

Place of Origin:	Shanxi, China
Brand Name:	TISCO
Certification:	ISO 9001:2015, SGS, CE
Model Number:	SS321-813-HP

Payment & Shipping Terms:

Minimum Order Quantity:	1 Ton
Price:	USD 3400-4400 / Ton
Packaging Details:	Steel-strapped bundles, seaworthy wooden case, or PE film wrapping with plastic end caps
Delivery Time:	7-15 working days
Payment Terms:	T/T, L/C, Western Union
Supply Ability:	3000 Tons per Month

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6-813mm Outer Diameter 321 Stainless Steel Seamless Pipe for High Pressure Hydraulic System

Description

Type:	Seamless	Material:	Stainless Steel
Steel Grade:	321 (1.4541)	Outer Diameter:	6-813 Mm
Wall Thickness:	0.5-60 Mm	Technique:	Cold Drawn / Hot Rolled
NDT:	UT, ET, HT	Standard:	ASTM A312, A213, GB/T 14976
Application:	High Pressure Hydraulic System
Highlight:	321 Stainless Steel Seamless Pipe , Large Diameter Seamless Steel Tube , Hydraulic Pressure Seamless Pipe

6-813mm Outer Diameter Stainless Steel Seamless Pipe 321 for High Pressure Hydraulic System

This titanium-stabilized 321 (1.4541) seamless stainless steel pipe is engineered for high pressure hydraulic and pneumatic systems that operate across a broad temperature range. The addition of titanium stabilizes the alloy against chromium carbide precipitation, giving the pipe excellent resistance to intergranular corrosion and outstanding high-temperature strength up to approximately 800 degrees Celsius in continuous service.

Its seamless construction delivers uniform wall thickness and a homogeneous grain structure, both of which are essential for withstanding the cyclic pressures and vibration found in hydraulic circuits. Available in an outer diameter range of 6 mm to 813 mm with wall thicknesses from 0.5 mm to 60 mm, the pipe is produced in standard 6-meter lengths and can be cut to precise project dimensions.

Key Features

Titanium Stabilized 321: resists intergranular corrosion and retains strength at elevated temperatures.
High Pressure Capable: seamless homogeneous structure withstands cyclic hydraulic pressure.
Wide Diameter Coverage: outer diameters from 6 mm to 813 mm cover small and large bore systems.
Dimensional Precision: cold drawn processing achieves tight tolerances for reliable fitting.
Vibration Resistant: uniform wall and grain structure reduce fatigue failure risk.
Full NDT Inspection: ultrasonic, eddy current, and hydrostatic testing on every batch.

Technical Specifications

Parameter	Specification
Material	321 (1.4541) Stainless Steel
Type	Seamless
Technique	Cold Drawn / Hot Rolled
Outer Diameter	6-813 mm
Wall Thickness	0.5-60 mm
Length	6 m standard, custom cut
Standard	ASTM A312, A213, GB/T 14976
NDT	UT, ET, HT
Surface Finish	Annealed, pickled, bright annealed
Application	High Pressure Hydraulic System

Applications

The 321 seamless stainless steel pipe is widely used in high pressure hydraulic systems, pneumatic circuits, and high-temperature fluid transport across aerospace, power generation, and heavy industry. Its titanium-stabilized chemistry makes it the preferred grade for applications where the pipe is exposed to sustained heat, such as exhaust systems, heat exchangers, and turbocharger oil lines.

In hydraulic power units and industrial machinery, the pipe reliably carries pressurized oil and fluid under demanding duty cycles without leaking or fatiguing. The seamless construction provides a clean, smooth interior that minimizes turbulence and pressure drop, contributing to overall system efficiency. This combination of temperature stability, corrosion resistance, and mechanical strength makes it a versatile solution for mission-critical installations.

Packaging & Quality Assurance

Each pipe is protected with plastic end caps and wrapped in corrosion-inhibiting film before being bundled with steel straps or packed into seaworthy wooden cases. This packaging safeguards the pipe surface and ends during ocean and road transport.

Complete mill test certificates, covering chemical composition, mechanical properties, and NDT results, are provided with every order. Manufacturing is performed under an ISO 9001:2015 certified quality system, and third-party inspection by SGS or BV is available upon request.

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Contact Person: Johnny

Tel: 13395131255

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