304 Seamless Stainless Steel Pipe Supplier Canada – ASTM A312 & A213 Certified
TeCarve is a reliable 304 seamless stainless steel pipe supplier Canada, offering pipes manufactured to ASTM A312, ASTM A213, and EN 10216-5 standards. Our seamless pipes are produced in Foshan and Wenzhou factories with annual capacity of 10,000 tons. Sizes range from OD 6mm to 610mm and wall thickness 0.5mm to 50mm, covering grades 304, 304L, 316, 316L, 321, 310S, 2205, and 904L. TeCarve ensures quality with EN 10204 3.1/3.2 mill certificates and rigorous testing.
ASTM A312 Seamless Pipe – Dimensions and Mechanical Properties
According to ASTM A312, seamless 304 stainless steel pipe must have a minimum tensile strength of 515 MPa and yield strength of 205 MPa. Elongation in 2 inches is at least 35%. TeCarve supplies pipes with OD from 6mm to 610mm and wall thickness from 0.5mm to 50mm, meeting these requirements. Hydrostatic testing is performed at 100% of specified pressure, typically 7 MPa for standard schedules.
Chemical Composition of 304 and 304L Seamless Pipe
Grade 304 seamless pipe contains 18-20% chromium and 8-10.5% nickel, with carbon maximum 0.08%. For 304L, carbon is limited to 0.03% maximum to improve weldability and corrosion resistance. TeCarve provides certified mill test reports (EN 10204 3.1) verifying composition. Typical 304 composition: Cr 19%, Ni 9.5%, C 0.05%, Mn 2%, Si 0.75%, P 0.045% max, S 0.03% max.
ASTM A213 Seamless Tubing for High-Temperature Service
ASTM A213 covers seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes. For 304, the maximum working temperature is 870°C in continuous service. TeCarve supplies A213 seamless tubing with OD 6mm-610mm and wall thickness 0.5mm-50mm. Tensile strength at room temperature is 515 MPa minimum. Pipes undergo eddy current testing per ASTM E309 and hydrostatic testing at 10 MPa.
EN 10216-5 Seamless Stainless Steel Pipe – European Standard
EN 10216-5 specifies seamless stainless steel pipes for pressure purposes. Grade 1.4301 (304) requires minimum yield strength of 175 MPa at 50°C and tensile strength of 500-700 MPa. TeCarve exports to Canada under this standard, offering pipes in OD 6mm-610mm. Dimensional tolerances follow EN ISO 1127. Impact testing at -20°C may be required for low-temperature applications, achieving minimum 40 J average.
Duplex 2205 and 904L Seamless Pipe Options
For corrosive environments, TeCarve supplies Duplex 2205 (22% Cr, 5% Ni, 3% Mo, 0.15% N) with yield strength of 450 MPa and tensile strength of 680 MPa. 904L (20-23% Ni, 19-23% Cr, 4-5% Mo) offers excellent resistance to sulfuric acid. Both grades are available in OD 6mm-610mm, wall 0.5mm-50mm, with EN 10204 3.2 certification. TeCarve also stocks 321 and 310S for high-temperature service up to 1150°C.
Quality Control and Testing Procedures at TeCarve
TeCarve employs chemical analysis (spectrometer), mechanical testing (tensile, hardness), hydrostatic testing (10 MPa for standard pipes), eddy current testing (per ASTM E309), and dimensional inspection. Each pipe is marked with grade, heat number, and standard. EN 10204 3.1 or 3.2 mill test certificates are provided. TeCarve’s ISO 9001 quality management system ensures consistency. For Canadian orders, third-party inspection (e.g., SGS, Bureau Veritas) is available.
Surface Finishes and Customization Options
TeCarve offers pickled and annealed, polished (180/240/320/400 grit), mirror (bright annealed), matte or satin finish, and custom finishes. For seamless pipe, standard finish is pickled and annealed (2B). Polished finishes are available for aesthetic applications. Custom lengths, threading, and beveling are offered. MOQ is 100-300 kg with smaller trial orders available. Lead time is 10-25 days after deposit.
| Grade | C% max | Ni% | Cr% | Key Property | Best For |
|---|---|---|---|---|---|
| 304 | 0.08 | 8.0-10.5 | 18.0-20.0 | Good corrosion resistance, formability | General purpose, food processing |
| 304L | 0.03 | 8.0-12.0 | 18.0-20.0 | Improved weldability, low carbon | Welded assemblies, chemical tanks |
| 316 | 0.08 | 10.0-14.0 | 16.0-18.0 | Mo 2-3%, superior pitting resistance | Marine, chemical processing |
| 316L | 0.03 | 10.0-14.0 | 16.0-18.0 | Low carbon, excellent weldability | Pharmaceutical, food & beverage |
| 321 | 0.08 | 9.0-12.0 | 17.0-19.0 | Ti stabilized, high-temp up to 870°C | Heat exchangers, furnace parts |
| 310S | 0.08 | 19.0-22.0 | 24.0-26.0 | Oxidation resistance to 1150°C | High-temperature furnaces |
| 2205 | 0.03 | 4.5-6.5 | 22.0-23.0 | Duplex, yield 450 MPa, corrosion resistant | Oil & gas, chemical tanks |
| 904L | 0.02 | 23.0-28.0 | 19.0-23.0 | Super austenitic, resists sulfuric acid | Chemical processing, pollution control |
How to Choose the Right Grade for Your Application
- Identify the operating temperature: for continuous service above 500°C, consider 321 or 310S; for cryogenic, 304L or 316L.
- Assess corrosion environment: for chloride-rich environments (e.g., marine), choose 316L or 2205; for sulfuric acid, 904L.
- Determine pressure requirements: for high-pressure systems (above 10 MPa), select 2205 or 316L with thicker wall.
- Check weldability: if extensive welding is needed, use low-carbon grades 304L or 316L to avoid sensitization.
- Evaluate cost constraints: 304 is most economical; for aggressive environments, the higher cost of 316L or 2205 may be justified by longer service life.
- Verify availability: TeCarve stocks all grades in OD 6mm-610mm with quick lead times of 10-25 days.
Industry Applications
- Oil & Gas: Seamless 316L or 2205 pipes for downhole tubing and flowlines, resistant to H2S and chlorides.
- Chemical & Petrochemical: 304L and 904L pipes for reactors, heat exchangers, and piping systems handling corrosive chemicals.
- Food & Beverage: 304 or 316L seamless pipes for hygienic processing lines, easy to clean and corrosion resistant.
- Pharmaceutical & Medical: 316L seamless tubing for sterile fluid transfer and equipment, meeting FDA and USP standards.
- Energy & Power: 321 and 310S pipes for superheaters and boilers operating at temperatures up to 1150°C.
Standards & Certifications
- ASTM A312 – Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
- ASTM A213 – Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
- EN 10216-5 – Seamless Steel Tubes for Pressure Purposes – Stainless Steels
- ISO 9001 – Quality Management System (TeCarve certified)
- ASME B36.10 – Welded and Seamless Wrought Steel Pipe
- GOST 9941-81 – Seamless Stainless Steel Tubes (for Russian market)
- EN 10204 3.1/3.2 – Mill Test Certificates
Frequently Asked Questions
What is the difference between 304 and 304L seamless pipe?
The main difference is carbon content: 304 allows up to 0.08% carbon, while 304L limits carbon to 0.03% maximum. Lower carbon in 304L prevents carbide precipitation during welding, improving corrosion resistance in welded areas. Mechanical properties are similar, with 304L having slightly lower strength (min yield 170 MPa vs 205 MPa for 304). Both are suitable for general applications, but 304L is preferred for welded assemblies.
Can you supply seamless pipe to Canada with ASTM A312 certification?
Yes, TeCarve supplies seamless pipe to Canada certified to ASTM A312 and ASTM A213. All pipes come with EN 10204 3.1 or 3.2 mill test certificates. We export to over 50 countries including Canada, with lead times of 10-25 days. Shipping terms include FOB, CIF, CFR, and DDP. Contact us for a quote for your specific size and grade.
What sizes and wall thicknesses are available for 304 seamless pipe?
TeCarve offers 304 seamless pipe in outer diameters from 6mm to 610mm and wall thicknesses from 0.5mm to 50mm. Standard schedules include SCH 10, SCH 40, SCH 80, and custom dimensions. Custom lengths up to 12 meters are available. MOQ is 100-300 kg, with smaller trial orders accepted. Contact sales@tecarve.com for availability.
How long does shipping take for seamless pipe orders to Canada?
Lead time for seamless pipe orders is 10-25 days after deposit, depending on size and quantity. Shipping to Canada via sea freight typically takes 20-35 days from China. Express delivery for small orders (under 500 kg) may take 5-10 days. TeCarve offers FOB, CIF, CFR, and DDP incoterms. We ensure tracking and timely delivery.
What is the minimum order quantity for 304 seamless pipe?
TeCarve’s standard MOQ is 100-300 kg per size and grade. For trial orders, we accept smaller quantities (as low as 50 kg) to help customers evaluate quality. This flexibility allows Canadian importers to test products before committing to larger volumes. Contact us for custom MOQ requirements.
Do you provide mill test certificates (MTC) with seamless pipe?
Yes, every seamless pipe order includes EN 10204 3.1 or 3.2 mill test certificates (MTC) at no extra cost. The MTC includes chemical composition, mechanical properties, heat number, and test results. Third-party inspection by SGS, Bureau Veritas, or other agencies is available upon request. TeCarve ensures full traceability.
What grades of stainless steel seamless pipe do you stock?
TeCarve stocks 304, 304L, 316, 316L, 321, 310S, 2205, 904L, 201, and 430 seamless pipe. For high-temperature applications, 321 and 310S are available. For corrosive environments, 316L, 2205, and 904L are recommended. All grades are available in OD 6mm-610mm and wall 0.5mm-50mm. Contact us for special grades.
Can you provide custom lengths or threading on seamless pipe?
Yes, TeCarve offers custom lengths (random or fixed, up to 12 meters), threading (NPT, BSP), beveling, and other end preparations. Custom surface finishes such as polished or mirror finish are also available. Additional processing may add 3-5 days to lead time. Please specify your requirements when ordering.
What is the price of 304 seamless pipe per kg in Canada?
Pricing depends on size, wall thickness, grade, and quantity. As of 2025, typical FOB price for 304 seamless pipe is $3.50-$6.00 USD per kg. For 316L, add 30-50%. For Duplex 2205, add 50-80%. CIF prices to Canada include freight and insurance. Request a quote from sales@tecarve.com for current pricing.
How do I place an order for seamless pipe from TeCarve?
To place an order, email sales@tecarve.com or WhatsApp +86 189 6804 2695 with your requirements: grade, OD, wall thickness, length, quantity, and desired standard (ASTM A312, A213, or EN 10216-5). Our team responds within 24 hours with a quotation and lead time. Payment terms are T/T, L/C, or Bill of Lading. We handle export documentation.
Market Data
According to Grand View Research, the global stainless steel pipe market size was valued at USD 28.5 billion in 2023 and is expected to grow at a CAGR of 6.2% from 2024 to 2030. In Canada, demand for seamless stainless steel pipe is driven by oil & gas extraction in Alberta and chemical processing in Ontario. TeCarve supplies to Canadian distributors and end-users, meeting CSA and NACE standards for corrosive service.
TeCarve Stainless supplies seamless pipe certified to ASTM A312, ASTM A213, EN 10216-5.
Sizes: OD 6mm-610mm, Wall 0.5mm-50mm
Grades: 304, 304L, 316, 316L, 321, 310S, 201, 430, 904L, Duplex 2205 | MOQ: 100–300 kg (smaller trial orders available) | Lead Time: 10–25 days after deposit
Email: sales@tecarve.com
WhatsApp: +86 189 6804 2695
Website: https://tecarvepipes.com/seamless-pipe/
Response within 24 hours.