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Stainless Steel Pipes | TP 347H/310S Aerospace-Grade Tubes

$1,380.00 SGD

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Quantity 1 - 49 tons 50 - 999 tons >= 1000 tons

Thickness 1-50mm

Stainless Steel Pipes | TP347H/310S Aerospace-Grade Tubes

Product Overview

Stainless steel pipes and fittings are engineered for extreme performance in aerospace, high-temperature industrial systems, and specialized exhaust applications. Our TP347H/310S seamless stainless steel tubes combine advanced metallurgical properties with precision manufacturing, ensuring unmatched resistance to oxidation, creep, and thermal fatigue. Ideal for stainless steel stove pipe systems, jet engines, and industrial furnaces, these tubes meet rigorous aerospace standards (AMS, ASTM) and are trusted by global pipe stainless steel suppliers for critical applications.

Technical Specifications

Property	TP347H	310S
Material Grade	UNS S34709 / EN 1.4550	UNS S31008 / EN 1.4845
Outer Diameter (OD)	6–610 mm (seamless)	6–610 mm (seamless)
Wall Thickness	0.5–40 mm	0.5–40 mm
Length	6–12 m (standard/customized)	6–12 m (standard/customized)
Hardness (HV)	192 HBW max	200 HBW max
Tensile Strength	≥515 MPa	≥600 MPa (at 100°C)
Yield Strength	≥205 MPa	≥265 MPa
Elongation	≥35%	≥41%
Temperature Resistance	Up to 871°C (1600°F)	Up to 1100°C (2012°F)
Surface Finish	Pickled, Annealed, Polished	Pickled, Annealed, Polished

Key Attributes

High-Temperature Stability
- TP347H: Stabilized with niobium (Nb), it resists carbide precipitation and intergranular corrosion during prolonged exposure to 800–900°C environments, such as stainless steel exhaust pipe tips and turbine manifolds.
- 310S: With 25% chromium and 20% nickel, it maintains structural integrity in extreme heat (up to 1100°C), ideal for aerospace combustion chambers and industrial kilns.
Corrosion & Oxidation Resistance
- Both grades form a protective chromium oxide layer, preventing scaling and sulfidation in acidic or sulfur-rich atmospheres.
Mechanical Durability
- TP347H offers superior creep rupture strength, while 310S excels in tensile performance under cyclic thermal stress.

Manufacturing Process

Stage	Description
Material Selection	High-purity chromium (17–26%), nickel (9–22%), and niobium/titanium alloys
Hot Extrusion	Seamless tubes formed under controlled pressure for uniform grain structure
Cold Drawing	Precision sizing to achieve tight tolerances (±0.1 mm OD)
Solution Annealing	Heat treatment at 1050–1150°C to optimize corrosion resistance and ductility
Surface Treatment	Electrolytic polishing (Ra ≤0.8 μm) for ultra-smooth, contamination-free surfaces
Quality Assurance	Ultrasonic testing, hydrostatic pressure checks, and EN 10204 3.1 certification

Detailed Performance Analysis

1. Tensile & Bend Strength

Tensile Strength:
- TP347H achieves ≥515 MPa, ensuring reliability in high-pressure aerospace hydraulic systems.
- 310S retains ≥600 MPa at 100°C, critical for jet engine components subjected to rapid thermal cycling.
Bend Strength:
- Both grades support tight-radius bending (1.5x OD) without cracking, essential for complex stainless steel stove pipe layouts.

2. Weight Calculation

Use the formula:
$Weight (kg/m) = \frac{( O D - W T ) \times W T \times 0.0248}{1000}$
Example: For a 100 mm OD pipe with 5 mm wall thickness:
$Weight = \frac{( 100 - 5 ) \times 5 \times 0.0248}{1000} = 11.78 kg/m$

3. Identification Marking

Laser Etching: Permanent markings include ASTM/EN standards, heat number, and material grade (e.g., "TP347H").
Color Coding: Optional PVC sleeves with ISO-compliant colors for quick identification in industrial settings.

4. Causes of Stainless Steel Rust

Chloride Exposure: Prolonged contact with seawater or de-icing salts can initiate pitting corrosion.
Mechanical Damage: Scratches from improper handling or stainless steel exhaust pipe tips installation expose underlying metal to oxidation.
Thermal Degradation: Repeated heating above 900°C (for 310S) may deplete chromium oxide layers, requiring protective coatings.

Applications

Aerospace: Jet engine exhausts, fuel injection systems.
Energy: Boiler superheaters, nuclear reactor tubing.
Industrial: Stainless steel stove pipe, chemical processing reactors.

Why Choose Our Stainless Steel Pipes?

As leading pipe stainless steel suppliers, we guarantee:

Aerospace Certification: Compliance with AMS 5510, ASTM A213, and ASME SA213.
Custom Fabrication: Tailored OD/WT ratios, bending, and threading for unique project needs.
Global Logistics: Fast shipping from Wuxi, China, with PVC-coated packaging to prevent transit damage.
Technical Support: Lifetime guidance on welding, maintenance, and stainless steel exhaust pipe tips optimization.
Sustainability: 100% recyclable materials with ISO 14001-certified production.

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Stainless Steel Pipes | TP 347H/310S Aerospace-Grade Tubes