321 Stainless Steel Pipe / Tube — Manufacturer, Price, Specifications
High-quality 321 Stainless Steel Pipe / Tube — direct from factory
What is 321 Stainless Steel Pipe / Tube?
321 stainless steel is stabilized with titanium to prevent intergranular corrosion. It retains good corrosion resistance after prolonged exposure to high temperatures, making it ideal for heat exchangers and boiler components.
321 Stainless Steel Pipe / Tube is one of our most popular products, widely used across various industries including heat exchangers and more.
Our 321 Stainless Steel Pipe / Tube are manufactured to the highest quality standards and come with full Mill Test Certificates (MTC).
Specifications & Dimensions
Seamless and welded stainless steel pipes for industrial, architectural and decorative applications.
Standard Sizes & Weight Chart
Reference sizes and theoretical weights. Custom sizes available upon request.
| Nominal Size | OD (mm) | Wall (mm) | Weight | Note |
|---|---|---|---|---|
| 1/2" Sch 40 | 21.3 mm | 2.77 mm | ~1.28 kg/m | Standard schedule 40 |
| 1" Sch 40 | 33.4 mm | 3.38 mm | ~2.5 kg/m | Standard schedule 40 |
| 2" Sch 40 | 60.3 mm | 3.91 mm | ~5.5 kg/m | Standard schedule 40 |
| 3" Sch 40 | 88.9 mm | 5.49 mm | ~11.5 kg/m | Standard schedule 40 |
| 4" Sch 40 | 114.3 mm | 6.02 mm | ~16.2 kg/m | Standard schedule 40 |
| 6" Sch 40 | 168.3 mm | 7.11 mm | ~28.4 kg/m | Standard schedule 40 |
| 8" Sch 40 | 219.1 mm | 8.18 mm | ~42.5 kg/m | Standard schedule 40 |
Chemical Composition (%)
Chemical composition of 321 grade, in accordance with relevant standards.
| Element | Range / Max |
|---|---|
| Carbon (C) | Max: 0.08% |
| Chromium (Cr) | 17.0 - 19.0% |
| Nickel (Ni) | 9.0 - 12.0% |
| Titanium (Ti) | 5×C% - 0.70% |
| Manganese (Mn) | Max: 2.00% |
| Silicon (Si) | Max: 1.00% |
| Phosphorus (P) | Max: 0.045% |
| Sulfur (S) | Max: 0.030% |
Mechanical Properties
Typical mechanical properties of 321 at room temperature.
| Property | Value |
|---|---|
| Tensile Strength (min) | 515 MPa (75,000 psi) |
| Yield Strength (min) | 205 MPa (30,000 psi) |
| Elongation (min) | 40% |
| Max Operating Temperature | 870°C (1600°F) |
Applications of 321 Steel
321 steel is widely used in the following industries and applications:
- Heat exchangers
- Boiler components and pressure vessels
- Exhaust systems
- Aerospace parts
- Chemical processing vessels
- Welded structures
Why Choose Rubao-Chinasteel as Your Supplier?
Direct Factory Price
We own our manufacturing facilities, ensuring competitive pricing without middlemen markup.
Rigorous Quality Control
Every batch undergoes 3-stage inspection: raw material, production, and final testing with full test reports.
Fast Global Delivery
Standard orders ship within 7-15 days. Well-established logistics network to major ports worldwide.
Custom Processing
Cutting, bending, welding, polishing, and surface treatment available according to your drawings.
Flexible MOQ
Minimum order from 1 ton for standard products. Trial orders welcome for new customers.
24/7 Service
Dedicated sales engineer assigned to each order. Quick response via email, phone, and WhatsApp.
Shipping to Israel — What You Need to Know
We regularly supply steel products to Israeli construction, industrial, and engineering projects. Here is a quick overview for buyers in Israel.
Ports & Transit Time
- Main ports: Ashdod, Haifa
- Transit time: 22–28 days
- From port: Shanghai / Ningbo
- Incoterms: FOB, CIF, CFR, DAP
Standards & Grades
- Primary: EN 10025 / EN 10088
- Also available: ASTM, JIS, GB
- Common grades: S235JR, S355JR, 304, 316L
- MTC: EN 10204 3.1 / 3.2
MOQ & Order Info
- Standard MOQ: 1 ton (mixed sizes ok)
- Container options: 20ft / 40ft / LCL
- Lead time: 7–15 days for stock
- Custom orders: 15–30 days
Quality & Certification
- ISO 9001:2015 certified factory
- Mill Test Certificate with every shipment
- Third-party inspection available (SGS, BV)
- Pre-shipment quality check included
Looking for a reliable steel supplier for your Israel project?
Send us your specifications and quantity — get a detailed CIF Ashdod / Haifa quote within 24 hours.
Frequently Asked Questions — Israel Customers
Do you ship steel products to Israel and which ports do you use?
Yes, we regularly supply steel products to customers across Israel. We ship mainly to Ashdod Port and Haifa Port, with transit time of approximately 22–28 days from Shanghai or Ningbo. We can offer FOB, CFR, CIF, or DAP terms depending on your preference. For smaller orders, LCL (Less than Container Load) shipping is also available.
What steel standards and grades do you offer for the Israeli market?
We supply steel products in EN European standards (most commonly requested in Israel), as well as ASTM, JIS, and GB standards. Popular grades include S235JR, S355JR for carbon steel and 304 / 316L for stainless steel. All shipments come with full Mill Test Certificates (MTC) per EN 10204 3.1 standard. Third-party inspection by SGS or Bureau Veritas is available upon request.
What is the minimum order quantity (MOQ) for shipping to Israel?
Our standard MOQ is 1 ton for in-stock products, and we accept mixed sizes in one order. For full container loads (20ft or 40ft), we can offer better per-ton pricing. Trial orders and sample quantities are welcome for new customers. Custom fabrication orders may have a higher MOQ depending on the complexity of processing.
How long does delivery take from China to Israel?
For standard stock products: 7–15 days to prepare + 22–28 days ocean freight = approximately 30–45 days total. For custom-sized or processed orders: add 1–2 weeks for production. Express air freight is available for urgent small orders (3–7 days). We always confirm the exact lead time before you place an order, and provide tracking information once the shipment is on the water.
Can you provide SII certification or documentation for Israeli import?
While we are not directly SII (Standards Institution of Israel) certified, we supply products that meet EN and ASTM standards widely accepted in Israel. We provide comprehensive documentation including Mill Test Certificates (MTC/MTR), commercial invoice, packing list, bill of lading, and certificate of origin — all documents typically required for Israeli customs clearance. Many of our Israeli customers use our EN-compliant materials successfully in construction and industrial projects. If you require specific additional documentation, let us know and we'll work with you to provide it.
Frequently Asked Questions
What is 321 steel?
What sizes are available for Stainless Steel Pipe / Tube?
What standards does 321 comply with?
What is the minimum order quantity?
What is the lead time?
Do you provide Mill Test Certificates?
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321 Stainless Steel Sheet / Plate — Manufacturer, Price, Specifications
Grade 321View Details →Ready to Get Your Quote?
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