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Home > Metallurgy, Mineral & Energy > Steel & Products > Stainless Steel > 409L Stainless Steel Welded Pipe, 1.5mm Thickness, 2B Surface, 6 Meter Length, Exhaust Systems

409L Stainless Steel Welded Pipe, 1.5mm Thickness, 2B Surface, 6 Meter Length, Exhaust Systems

409L Stainless Steel Welded Pipe, 1.5mm Thickness, 2B Surface, 6 Meter Length, Exhaust Systems thumbnail-3

409L Stainless Steel Welded Pipe, 1.5mm Thickness, 2B Surface, 6 Meter Length, Exhaust Systems thumbnail-4

409L Stainless Steel Welded Pipe, 1.5mm Thickness, 2B Surface, 6 Meter Length, Exhaust Systems thumbnail-5

409L Stainless Steel Welded Pipe, 1.5mm Thickness, 2B Surface, 6 Meter Length, Exhaust Systems photo-1

409L Stainless Steel Welded Pipe, 1.5mm Thickness, 2B Surface, 6 Meter Length, Exhaust Systems photo-2

409L Stainless Steel Welded Pipe, 1.5mm Thickness, 2B Surface, 6 Meter Length, Exhaust Systems photo-3

409L Stainless Steel Welded Pipe, 1.5mm Thickness, 2B Surface, 6 Meter Length, Exhaust Systems photo-4

409L Stainless Steel Welded Pipe, 1.5mm Thickness, 2B Surface, 6 Meter Length, Exhaust Systems photo-5

Product Spotlights

409L stainless steel welded pipe with 1.5mm thickness and 2B surface finish, precisely manufactured for exhaust systems. Offers high heat resistance (up to 815°C), excellent weldability, and corrosion protection. 6-meter standard length minimizes joints. ISO9001 certified, direct from manufacturer with customizable dimensions and global export experience.

Negotiable MOQ: 1 Ton (Price negotiable depending on order volume and customization)

Key Specifications

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Standard:

Other, ASTM A268

Certification:

Other, ISO9001:2025

Material:

409L Stainless Steel

Contact Supplier Request Quote Chat Now

Hemaokang Steel (Shandong) Co., Ltd.

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

Qingdao Port

Delivery Detail:

7 days

Product Details
Company Profile
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Standard Other, ASTM A268

Certification Other, ISO9001:2025

Material 409L Stainless Steel

Thickness 1.5mm

Surface Finish 2B

Length 6 meters

Application Exhaust Systems, Automotive, Industrial

Welding Process High-frequency welded / TIG welded

OD Range Customizable (e.g., 25mm – 100mm)

Hemaokang Steel (Shandong) Co., Ltd. proudly presents our premium 409L Stainless Steel Welded Pipe – a high-performance solution tailored for exhaust systems and demanding industrial applications. With a precise wall thickness of 1.5mm, a smooth 2B surface finish, and a standard 6-meter length, this pipe combines excellent corrosion resistance, heat tolerance, and formability. As a manufacturer with ISO9001 certification and an annual export value exceeding US$50 million, we ensure every pipe meets rigorous quality standards, offering you reliability and cost-effectiveness for your automotive or manufacturing projects.

Key Features & Technical Specifications

Superior Material: 409L is a low-carbon, titanium-stabilized ferritic stainless steel, specifically designed for exhaust systems. It offers excellent oxidation resistance up to 815°C (1500°F) and good weldability.
Precise Dimensions: 1.5mm wall thickness ensures optimal strength-to-weight ratio, while the 6-meter length minimizes welding joints for long-span applications. Other lengths (customizable) available upon request.
2B Surface Finish: A cold-rolled, bright annealed finish that provides a smooth, non-reflective surface – ideal for forming, bending, and welding without additional processing.
High-Frequency Welded (HFW) Technology: Our advanced welding process ensures a uniform seam, free from defects, and consistent mechanical properties along the entire pipe.
Corrosion & Heat Resistance: 409L resists exhaust gas condensate corrosion, road salt, and high-temperature oxidation, making it a top choice for mufflers, catalytic converters, and exhaust manifolds.

Parameter	Value
Material Grade	409L (UNS S40920)
Wall Thickness	1.5mm (±0.15mm)
Length	6 meters (standard), custom lengths available
Surface Finish	2B (cold rolled, annealed, pickled)
Welding Process	High-frequency welding (HFW) / TIG
Applicable Standards	ASTM A268, A249, EN 10217-7
Tensile Strength (min)	≥ 415 MPa
Yield Strength (min)	≥ 205 MPa
Elongation	≥ 20%

Why Choose Hemaokang Steel for Your Exhaust System Needs?

Rigorous Quality Control: Every batch undergoes dimensional inspection, mechanical testing, and surface finish verification. Our ISO9001-certified processes guarantee consistency.
Customization Options: Need a different diameter, wall thickness, or cut length? We offer tailored solutions with short lead times – just contact our sales team.
Global Export Expertise: Serving markets across North America, South America, Europe, Asia, Africa, and Oceania, we understand international packaging and shipping requirements, ensuring your pipes arrive in perfect condition.
Competitive Pricing: As a direct manufacturer with 51–100 skilled employees, we optimize production costs without compromising quality, passing the savings to you.
Technical Support: Our engineering team can assist with material selection, welding recommendations, and application guidance to maximize the performance of your exhaust system.

Trust & Reliability – Backed by Numbers

Since our establishment in 2025, Hemaokang Steel has rapidly grown to an annual export value of US$50 Million – US$100 Million, a testament to the trust our global partners place in our products. We are located in Liaocheng, Shandong, China – a renowned steel manufacturing hub – and our dedicated team of 51–100 employees ensures every order is handled with care. With ISO9001 certification covering our entire production process, you can rely on consistent quality, on-time delivery, and responsive after-sales support. From small workshop orders to large OEM projects, we are your dependable partner for 409L stainless steel welded pipes.

Contact us today to request a quote, free sample, or technical datasheet. Let Hemaokang Steel help you build durable, high-performance exhaust systems that stand the test of heat and corrosion.

Frequently Asked Questions (FAQ)

Q: What does 409L stand for?
A: 409L is a low-carbon version of 409 stainless steel, stabilized with titanium. The 'L' indicates lower carbon content (≤0.03%), which improves weldability and corrosion resistance, especially in exhaust environments.
Q: Can this pipe be used for high-temperature exhaust systems?
A: Yes, 409L is designed for continuous service up to 815°C (1500°F). It offers excellent oxidation resistance and thermal fatigue properties, making it suitable for automotive exhaust manifolds, catalytic converters, and mufflers.
Q: Is the 2B surface finish suitable for bending and forming?
A: Absolutely. The 2B finish is a common cold-rolled surface that provides good formability. It is ideal for bending, roll forming, and welding without requiring additional surface preparation.
Q: What are the available outer diameters for this pipe?
A: We offer standard sizes ranging from 25mm to 100mm OD, with custom diameters available upon request. Please provide your specific requirements, and we will confirm feasibility.
Q: Do you provide certification for the material?
A: Yes, we can issue a Mill Test Certificate (MTC) per ASTM A268 or EN 10204 Type 3.1, along with our ISO9001 certification documents. These are available upon request.
Q: How do you ensure the pipe is free from defects?
A: Each pipe undergoes visual inspection, dimensional checks, eddy current testing (ECT) for weld integrity, and hydrostatic pressure testing as per standard requirements. Random samples are also tested for mechanical properties.
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes, our MOQ is typically 300 pieces (6-meter length each). For custom sizes, MOQ may vary. Please contact our sales team for details.
Q: Can you supply pipes with a different length, such as 3 meters or 12 meters?
A: Yes, we can cut to custom lengths. Additional charges may apply for non-standard lengths. We also offer random lengths between 5.8m and 6.1m as standard.