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High-Performance Stainless Steel Exhaust Pipe | 304/310 Alloys

$1,200.00 SGD

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Quantity 1 - 29 tons 30 - 99 tons >= 100 tons

Thickness 1-50mm

Product Detail Page: High-Performance Stainless Steel Exhaust Pipe | 304/310 Alloys

Product Overview

Engineered for automotive, aerospace, and industrial exhaust systems, our stainless steel exhaust pipe combines 304 stainless steel pipe and 310 alloys to deliver exceptional heat resistance, corrosion durability, and mechanical strength. Ideal for extreme temperatures (up to 1,100°C) and harsh environments, these pipes are certified to ASTM A312, ASME B36.19, and ISO 9001 standards.

Technical Specifications

Parameter	Details
Material Grades	304 (UNS S30400), 310 (UNS S31000), 310S (UNS S31008)
Size Range	1/2" to 36" (DN15 to DN900)
Wall Thickness	SCH 5, SCH 10S, SCH 40S, SCH 80S (0.28" to 0.72")
Pressure Rating	Up to 6,000 psi (413 bar)
Hardness	304: 70–90 HRB / 310: 85–95 HRB
Surface Finish	Polished (Ra ≤ 0.8μm), Pickled, Sandblasted
Temperature Range	304: -200°C to +870°C / 310: +800°C to +1,100°C
Certifications	ASTM A312, ASME B36.19, PED 2014/68/EU, NACE MR0175

Mechanical & Chemical Properties

Tensile & Bend Strength

304 Stainless Steel:
- Ultimate Tensile Strength (UTS): 73,000 psi (505 MPa)
- Yield Strength: 31,000 psi (215 MPa)
- Bend Strength: 55% elongation, suitable for structural and exhaust applications.
310 Alloy:
- UTS: 82,000 psi (565 MPa) at 100°C, decreasing to 45 MPa at 1,100°C.
- Bend Strength: Retains 30% elongation at 800°C, ideal for high-stress exhaust systems.

Weight Calculation

Calculate the weight of stainless steel exhaust pipe using:
$Weight (kg/m) = \frac{π \times ( OD ^{2} - ID ^{2} ) \times Density}{4 \times 10 ^{6}}$
Example: A 6" SCH 40S pipe (OD 6.625", ID 6.065") weighs 19.16 lbs/ft (28.5 kg/m).

Identification Marking

Each pipe is laser-etched with:

Grade (e.g., 304, 310S)
Heat Number
Compliance Marks (ASTM/ASME)
Manufacturer Code.

Causes of Stainless Steel Rusting

While stainless steel exhaust pipe resists corrosion, rust may occur due to:

Chloride Exposure: Saltwater or de-icing agents degrade the chromium oxide layer, causing pitting.
Mechanical Damage: Scratches from abrasive tools expose the iron substrate to oxidation.
Low Oxygen Environments: Stagnant water prevents oxide layer regeneration.
Galvanic Corrosion: Contact with carbon steel in humid conditions triggers electrochemical reactions.

Applications

Automotive Exhaust Systems: 304 stainless steel pipe resists heat cycles and road salt.
Aerospace Combustion Chambers: 310 alloy withstands 1,100°C in jet engines.
Industrial Furnaces: Thin-walled designs optimize heat transfer and reduce weight.
Marine Exhausts: SCH 40S pipes resist saltwater corrosion in ship engines.

Manufacturing Process

Material Selection: Billets sourced from mills like TSINGSHAN and TISCO.
Forming: Cold drawing (±0.05mm tolerance) or hot rolling for large diameters.
Welding: TIG welding ensures seamless joints for stainless steel exhaust pipe.
Heat Treatment: Solution annealing (1,040°C for 304) or aging (480°C for 310).
Quality Assurance: 100% ultrasonic testing and third-party inspections.

Why Choose Our Stainless Steel Exhaust Pipes?

Superior Alloys: 310S contains 24–26% chromium and 19–22% nickel for oxidation resistance.
Global Certifications: Compliant with ASTM, ASME, and NACE standards.
Custom Solutions: Tailored sizes (1/2"–36"), thicknesses, and surface finishes.
Fast Delivery: Stocked SCH 5–80S pipes with 7–15 day lead times.
Sustainability: 100% recyclable materials and ISO 14001-certified production

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High-Performance Stainless Steel Exhaust Pipe | 304/310 Alloys