| Type: | Stainless Steel Pipes |
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| Standard: | ASTM, AISI, GB, JIS, DIN, EN |
| Grade: | 300 Series |
| Certification: | ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS |
| Shape: | Round |
| Technique: | Seamless/Welded |
| Samples: |
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| Customization: |
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Stainless Steel Grades:
304: Known for good versatility and corrosion resistance. It is commonly used in kitchen equipment, piping, and architectural applications.
321: Similar to 304 but includes titanium for heat resistance. It's ideal for applications where the temperature reaches up to about 900°C.
316: Known for its enhanced corrosion resistance in chloride environments, making it suitable for marine and pharmaceutical uses.
301: An austenitic stainless steel which is less corrosion-resistant but offers high strength and good ductility.
310S: Excellent high-temperature properties with good ductility and weldability, often used in high-temperature environments.
Product Type - Welded Square Tube/Pipe:
Welded Tubes/Pipes: These are made from a strip or coil that is formed into a square shape and then welded along the seam. Welding provides cost efficiency compared to seamless tubing but might be less suitable for certain high-pressure applications.
Square Shape: Offers structural strength and aesthetic value, commonly used in construction, architecture, and decorative applications.
Manufacturing Considerations:
Production Techniques: Manufacturers use various welding techniques, including Electric Resistance Welding (ERW) and Laser Welding, to ensure strong seams.
Quality Control: Critical for ensuring the tubes meet the required specifications and standards, including dimensional accuracy and surface finish.
Certifications: Many manufacturers adhere to international standards such as ASTM, ISO, or specific industry standards like ASME. Certifications and testing ensure compliance with safety, quality, and regulatory requirements.
Choosing a Manufacturer:
When selecting a manufacturer for stainless steel welded square tubes and pipes in these specific grades, it is important to consider:
Experience and Reputation: Established manufacturers with a proven track record are preferable.
Capability to Supply Various Grades: Ensure the manufacturer has the capability to produce all the stainless steel grades you require.
Customization Options: Some applications may require custom sizes and specifications.
Pricing and Availability: Competitive pricing and the ability to meet demand within required timelines.
It's beneficial to assess manufacturers based on their product range, technical expertise, production capacity, and ability to provide technical support. Manufacturers from regions known for steel production, like China, Japan, Germany, and the USA, often have advanced technologies and stringent quality controls, making them reliable sources for such products.
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1. |
Item |
Manufacturer 304 321 316 301 310S stainless steel welded square tube pipe |
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2. |
Standard |
ASTM A213, A312, ASTM A269,ASTM A778, ASTM A789, DIN 17456,DIN 17457, DIN 17459, JIS G3459, JIS G3463, GOS T9941, EN 10216, BS3605, GB13296,etc. |
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3. |
Material |
201,202,301,304,304L,304N,XM21,304LN,309S,310S,316,316Ti, 316L,316N,316LN,317,317L,321,329,etc. |
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4. |
Specifications |
Wall thickness |
1.0-150mm(SCH10S-XXS) |
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Outside diameter |
3.0-2500mm(1/8"-100") |
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Length |
6m,5.8m,8m,11.8m,12m or as required. |
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5. |
Surface |
Pickling, annealing, polishing, bright, sand blast, hair line, etc. |
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6. |
Price Term |
Ex-work, FOB, CFR, CIF, or as required. |
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7. |
Payment Term |
T/T, L/C, Western Union. |
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8. |
Export to |
Singapore, Canada, Indonesia, Korea, USA, UK, Thailand, Saudi Arabia, Vietnam, Iran, India, Peru, Ukraine ,Brazil, South Africa, etc. |
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9. |
MOQ |
500kg |
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10. |
Delivery Time |
Prompt delivery or according to order's quantity. |
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11. |
Package |
Export standard package: bundled wooden box, suit for all kinds of transport, or be required. |
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12. |
Application |
widely used in petroleum, chemical, medical, food, light industry, machinery, instrument and other industrial pipeline and mechanical structure parts, etc. |
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13. |
Contact |
If you have any question, please feel free to contact me. |
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| Stee Grade |
Chemical Composition % | ||||||||||
| C | Cr | Ni | Mn | P | S | Mo | Si | Cu | N | Other | |
| 201 | ≤0.15 | 16.00-18.00 | 3.50-5.50 | 5.50-7.50 | ≤0.060 | ≤0.030 | ≤1 | ≤0.25 | |||
| 202 | ≤0.15 | 17.00-19.00 | 4.00-6.00 | 7.50-10.00 | ≤0.060 | ≤0.030 | ≤1 | ≤0.25 | |||
| 301 | ≤0.15 | 16.00-18.00 | 6.00-8.00 | ≤2.0 | ≤0.065 | ≤0.030 | ≤1.00 | ||||
| 302 | ≤0.15 | 17.00-19.00 | 8.00-10.00 | ≤2.00 | ≤0.035 | ≤0.030 | ≤1.00 | ||||
| 304 | ≤0.08 | 18.00-20.00 | 8.00-11.00 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | ||||
| 304L | ≤0.035 | 18.00-20.00 | 8.00-12.00 | ≤2 | ≤0.045 | ≤0.030 | ≤1.00 | ||||
| 305 | ≤0.12 | 17.00-19.00 | 11.00-13.00 | ≤2 | ≤0.045 | ≤0.03 | Om | ≤1.00 | |||
| 309S | ≤0.08 | 22.00-24.00 | 12.00-15.00 | ≤2 | ≤0.045 | ≤0.030 | ≤1 | ||||
| 310S | ≤0.08 | 24.00-26.00 | 19.00-22.00 | ≤2 | ≤0.045 | ≤0.030 | ≤1.00 | ||||
| 316 | ≤0.08 | 16.00-18.00 | 10.00-14.00 | ≤2 | ≤0.045 | ≤0.030 | 2.00-3.00 | ≤1.00 | |||
| 316L | ≤0.035 | 16.00-18.00 | 10.00-14.00 | ≤2.00 | ≤45 | ≤0.03 | 2.00-3.0 | ≤1.00 | |||
| 317 | ≤0.08 | 18.00-20.00 | 11.00-14.00 | 2.00 | ≤0.045 | ≤0.030 | 3.00-4.00 | ≤1 | |||
| 317L | ≤0.035 | 18.00-20.00 | 11.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | 3.00-4.00 | ≤1.00 | |||
| 321 | ≤0.08 | 17.00-19.00 | 9.00-12.00 | ≤2 | ≤0.045 | ≤0.030 | ≤1.00 | Ti5(C%-0.02 ~0.08 |
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| 347 | ≤0.08 | 17.00-19.00 | 9.00-13.00 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | Nb≥10*C% |
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