6M 304 Stainless Steel Pipe Specifications SS316L SS310S 180# 240# 320# Ss Seamless Tubing
Stainless Steel Welded Pipes SS304 SS316L SS310S Polished 180# 240# 320#
►Products Description
Our AISI 304/316 stainless steel welded pipes combine exceptional corrosion resistance, high strength, and durability for demanding industrial applications. Available in sizes from 1/8" to 48" OD with customizable thickness (0.5mm–1200mm), they comply with ASTM/ASME standards and are ISO-certified. Ideal for petrochemical, construction, food processing, and HVAC systems, these pipes feature precision welding technology for leak-proof performance. Options include polished surfaces (180–600 grit) or anti-rust coatings. We offer OEM/ODM services, free sample testing, and flexible MOQs. Orders ship within 10–20 days via FOB/CIF terms, supported by T/T, L/C, or PayPal. Contact us for tailored solutions and competitive bulk pricing.
►Pipes Size
ASTM A312/A778(B36.19)
| Nominal Outside Diameter | OD(mm) | Thickness(mm) |
| NPS | INCH | O.D | 5S | 10S | 40S |
| 8 | 1/4'' | 13.72 | 1.24 | 1.65 | 2.24 |
| 10 | 3/8'' | 17.15 | 1.24 | 1.65 | 2.31 |
| 15 | 1/2'' | 21.34 | 1.65 | 2.11 | 2.77 |
| 20 | 3/4'' | 26.67 | 1.65 | 2.11 | 2.87 |
| 25 | 1'' | 33.4 | 1.65 | 2.77 | 3.38 |
| 32 | 1-1/4'' | 42.16 | 1.65 | 2.77 | 3.56 |
| 40 | 1-1/2'' | 48.26 | 1.65 | 2.77 | 3.68 |
| 50 | 2'' | 60.33 | 1.65 | 2.77 | 3.91 |
| 65 | 2-1/2'' | 73.03 | 2.11 | 3.05 | 5.16 |
| 80 | 3'' | 88.9 | 2.11 | 3.05 | 5.49 |
| 90 | 3-1/2'' | 101.6 | 2.11 | 3.05 | 5.74 |
| 100 | 4'' | 114.3 | 2.11 | 3.05 | 6.02 |
| 125 | 5'' | 141.3 | 2.77 | 3.4 | 6.55 |
| 150 | 6'' | 168.28 | 2.77 | 3.4 | 7.11 |
| 200 | 8'' | 219.08 | 2.77 | 3.76 | 8.18 |
| 250 | 10'' | 273.05 | 3.4 | 4.19 | 9.27 |
| 300 | 12'' | 323.85 | 3.96 | 4.57 | 9.53 |
JIS G3459
| Nominal Outside Diameter | OD(mm) | Thickness(mm) |
| NPS | INCH | O.D | 5S | 10S | 20S | 40S |
| 8 | 1/4'' | 13.8 | 1.2 | 1.65 | 2.0 | 2.2 |
| 10 | 3/8'' | 17.3 | 1.2 | 1.65 | 2.0 | 2.3 |
| 15 | 1/2'' | 21.7 | 1.65 | 2.1 | 2.5 | 2.8 |
| 20 | 3/4'' | 27.2 | 1.65 | 2.1 | 2.5 | 2.9 |
| 25 | 1'' | 34 | 1.65 | 2.8 | 3.0 | 3.4 |
| 32 | 1-1/4'' | 42.7 | 1.65 | 2.8 | 3.0 | 3.6 |
| 40 | 1-1/2'' | 48.6 | 1.65 | 2.8 | 3.0 | 3.7 |
| 50 | 2'' | 60.5 | 1.65 | 2.8 | 3.5 | 3.9 |
| 65 | 2-1/2'' | 76.3 | 2.1 | 3.0 | 3.5 | 5.2 |
| 80 | 3'' | 89.1 | 2.1 | 3.0 | 4.0 | 5.5 |
| 90 | 3-1/2'' | 101.6 | 2.1 | 3.0 | 4.0 | 5.7 |
| 100 | 4'' | 114.3 | 2.1 | 3.0 | 4.0 | 6.0 |
| 125 | 5'' | 139.8 | 2.8 | 3.4 | 5.0 | 6.6 |
| 150 | 6'' | 165.2 | 2.8 | 3.4 | 5.0 | 7.1 |
| 200 | 8'' | 216.3 | 2.8 | 4.0 | 6.5 | 8.2 |
| 250 | 10'' | 267.4 | 3.4 | 4.0 | 6.5 | 9.3 |
| 300 | 12'' | 318.5 | 3.4 | 4.5 | 6.5 | 10.3 |
►Product Shoot
►FAQ
Q1: How is the quality?
A: Quality is priority. We pay much attention to the quality check. Every product will be fully assembled and carefully tested before it's packed for shipment.
Q2: What is your minimum order quantity?
A: The MOQ for each product is different, so it would be recommended to refer to the detail page of the product you are interested in. If you need further clarification, send me the product link, and I will reply as soon as possible.
Q3: Can I customize products?
A: Yes. Let me know the specific customization requirements, and I will get back to you as soon as possible.
Q4: Do you provide samples ? Is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q5: How long is your production lead time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.