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Help CenterDIN 430 304 Stainless Steel Pipe, 33.7mm OD, Welded, 2mm Wall, Mill Test Report Available
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Hemaokang Steel (Shandong) Co., Ltd. is proud to offer high-quality DIN 430 304 Stainless Steel Pipe with a precise outer diameter of 33.7mm, 2mm wall thickness, and welded construction. As a reliable manufacturer established in 2025 with an annual export value of US$50–100 million, we ensure every pipe meets rigorous quality standards and is backed by a Mill Test Report for full traceability. Our product is designed to deliver outstanding corrosion resistance, durability, and dimensional accuracy, making it an ideal choice for various industrial applications.
This stainless steel pipe is manufactured in accordance with DIN 430 specifications, using premium 304 stainless steel. The welded process ensures consistent wall thickness and smooth inner and outer surfaces, while the optional annealing and pickling finish enhances corrosion resistance. Whether you require standard lengths or custom sizes, our flexible production capabilities can meet your specific needs.
Key Features & Technical Specifications
- Material: 304 Stainless Steel (0.08% Carbon max, 18-20% Chromium, 8-10.5% Nickel)
- Standard: DIN 430 (German standard for stainless steel pipes)
- Outer Diameter: 33.7 mm (tolerance ±0.5 mm)
- Wall Thickness: 2 mm (tolerance ±0.2 mm)
- Manufacturing Process: Welded (longitudinal seam, 100% weld inspection available)
- Surface Treatment: Annealed and pickled (standard), or polished (optional)
- Length: 6 meters standard, custom lengths up to 12 meters available upon request
- Mechanical Properties: Tensile strength ≥ 520 MPa, Yield strength ≥ 205 MPa, Elongation ≥ 35%
- Test Report: Mill Test Report (MTR) included with each shipment
- Certification: ISO9001:2015 quality management system
| Parameter | Value |
|---|---|
| Outer Diameter | 33.7 mm |
| Wall Thickness | 2 mm |
| Weight per meter | Approx. 1.58 kg/m (based on 304 density 7.93 g/cm³) |
| Working Pressure | Up to 10 bar (depending on temperature and application) |
| Temperature Range | -20°C to +400°C (continuous service) |
This DIN 430 pipe offers excellent corrosion resistance in mild environments, making it suitable for water supply systems, food processing equipment, chemical pipelines, and structural components. The welded construction provides a cost-effective solution without compromising strength, and the inclusion of a Mill Test Report guarantees material traceability and compliance with international standards.
Benefits for Buyers:
- Consistent quality and dimensional accuracy reduce installation time and waste.
- 304 stainless steel offers long service life with minimal maintenance.
- Welded process allows for longer lengths and lower cost compared to seamless pipes.
- Mill Test Report provides full material certification, satisfying project documentation requirements.
- Flexible customization: different lengths, end finishes (beveled, threaded), and packaging options available.
- Global shipping experience: our company exports to North America, South America, Europe, Africa, Oceania, and Asia.
Trust Hemaokang Steel for Your Supply
With an annual export value exceeding US$50 million and a dedicated team of 51–100 employees, Hemaokang Steel (Shandong) Co., Ltd. is a professional supplier of stainless steel products. Our ISO9001-certified quality management system ensures that every pipe leaving our factory meets the highest standards. We serve customers in over 15 global markets, including domestic, and have built a reputation for reliability and prompt delivery.
We are committed to providing competitive pricing, on-time delivery, and excellent after-sales support. Each order can be accompanied by the required Mill Test Report, and we welcome third-party inspections. Contact us today to discuss your specific requirements or request a quotation. Let us be your trusted partner in stainless steel piping solutions.
Frequently Asked Questions (FAQ)
Q1: What is the difference between DIN 430 and other pipe standards like ASTM A312?
A: DIN 430 is a German standard that specifies dimensions, tolerances, and material grades for stainless steel pipes. While similar to ASTM A312, DIN 430 uses metric dimensions (e.g., 33.7mm OD) and may have slightly different requirements. Our product meets both the dimensional and mechanical requirements of DIN 430, and we can provide a Mill Test Report to confirm compliance.
Q2: Is the pipe suitable for high-pressure applications?
A: The 33.7mm OD, 2mm wall welded pipe is designed for moderate pressure applications (up to 10 bar depending on temperature). For higher pressures, we recommend consulting our technical team to evaluate the specific service conditions. Alternatively, we can supply seamless pipes with thicker walls if required.
Q3: What surface finish options are available?
A: Standard finish is annealed and pickled (satin finish). We also offer 180 grit or 320 grit polished finish upon request, which is suitable for food-grade or aesthetic applications. Please specify your requirement when ordering.
Q4: Can you provide the pipe in custom lengths?
A: Yes, we can cut the pipe to any length from 1 meter up to 12 meters. Standard length is 6 meters. For lengths beyond 12 meters, please inquire about availability. Custom lengths are available with a minimum order quantity.
Q5: What is the typical lead time for this product?
A: For standard sizes (33.7mm OD, 2mm wall, 6m length), lead time is approximately 15–20 working days after order confirmation. For custom sizes or large quantities, lead time may be extended. We will confirm the exact delivery schedule upon order.
Q6: Do you provide samples before bulk order?
A: Yes, we can provide samples (typically 1 meter length) for quality evaluation. The sample cost is negotiable, and shipping charges apply. Sample orders are usually dispatched within 7 days.
Q7: What testing is included in the Mill Test Report?
A: The Mill Test Report includes chemical composition analysis, mechanical properties (tensile, yield, elongation), dimensional inspection, hydrostatic test (if required), and visual inspection. The report is certified by our quality department and can be sent in advance.
Q8: How is the pipe packaged for export?
A: Pipes are packed in bundles using steel straps, with plastic caps on both ends to protect the edges. Each bundle is wrapped with waterproof paper and then packed in seaworthy wooden crates or containers as per customer requirements. We can also provide custom packaging for fragile applications.
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