Seamless Carbon Steel Pipe ASTM A106 / API 5L Gr.B (Dual Certified) - SCH40/80

ASTM A106 Gr.B / API 5L Gr.B (Dual Certified)

Stock Ready for Quick Shipment！
Dual Certified: Meets both ASTM A106 Gr.B and API 5L Gr.B standards. One pipe covers 90% of fluid transport needs.
Golden Sizes: Ready stock in OD 2" (60.3mm) to 8" (219.1mm).
Wall Thickness: Available in Standard (SCH 40) and Extra Strong (SCH 80).
Premium Finish: Black anti-rust painting, beveled ends, and Green Plastic Caps protection (As shown in photos).

Quantity:

Contact Now

Stop Waiting for Production. Get Seamless Carbon Steel Pipes (SMLS) from Stock Now. Why stock multiple grades when one ASTM A106 / API 5L Pipe does it all? Our Dual Certified Seamless Steel Pipes are the 'Coca-Cola' of the industry — fast turnover, high demand, and compatible with both SCH40/SCH80 fluid transport and high-pressure pipeline applications.

Status: Ready in Stock (Cangzhou Warehouse)
Best Selling: 2"to 8"(SCH40/80)
Standard: ASTM A106 Gr.B / API 5L Gr.B

Feature	Details
Material	Carbon Steel (Dual Certified)
OD Range	2"(60.3mm) – 8"(219.1mm)
Length	5.8m (20GP) / 11.8m (40HQ)
Surface	Black Anti-rust Painting
Ends	Beveled with Green Plastic Caps

🚀 Next Step: Ready to Order?

Option A: Get a Quote for This Stock Stock moves fast! If you need 2"-8"standard pipes, click the orange "Contact Now" button at the top to lock in today's price.
Option B: Need Larger Sizes or Special Wall Thickness? Looking for OD > 8"or heavy wall thickness (XXS)? 👉 [Click Here to View Our Full Seamless Pipe Catalog (1/2"- 24")]

1. Dimensional & Manufacturing Standards

Standard: ASTM A106 Gr.B / API 5L Gr.B (Dual Certified).
Manufacturing Process:
- Hot Rolled: For OD 2" and above (Most common).
- Cold Drawn: For small sizes (OD < 2") to ensure precise tolerances.
Schedule (Wall Thickness):
- SCH 40 (STD): Standard weight for general fluid transport.
- SCH 80 (XS): Extra strong for high-pressure lines.
Length: 5.8m (Fit for 20GP) / 11.8m (Fit for 40HQ

2. Mechanical Properties (Dual Certified Guarantee) Meets the stricter requirements of both standards.

Property	ASTM A106 Gr.B Req.	API 5L Gr.B Req.	Our Dual Certified Pipe
Yield Strength	≥ 240 MPa	≥ 241 MPa	≥ 245 MPa (Guaranteed)
Tensile Strength	≥ 415 MPa	≥ 414 MPa	≥ 420 MPa (Guaranteed)
Elongation	Standard	Standard	Qualified

3. Chemical Composition (Product Analysis) Fully Killed Carbon Steel - Fine Grain Practice.

Element	C (Max)	Mn	P (Max)	S (Max)	Si (Min)
Percentage	≤ 0.30%	0.29-1.06%	≤ 0.035%	≤ 0.035%	≥ 0.10%

Note: Silicon content ≥ 0.10% is guaranteed for A106 compliance

4. Inspection & Testing (100% Guaranteed)

Hydrostatic Test: 100% Tested at factory pressure limits.
NDT: Eddy Current (ET) or Ultrasonic Testing (UT) to detect invisible defects.
Flattening Test: Performed to ensure ductility.

Traceable Quality, Zero Risk. We don't just sell pipes; we sell specific heat numbers with full traceability.

MTC Standard: Mill Test Certificates provided according to EN 10204 3.1.
Traceability: Every pipe is stenciled with Heat No., Grade, Size, and Standard. You can trace the raw material back to the steel billet.
Third-Party Inspection: We welcome SGS / BV / Moody / Tuboscope inspectors to our warehouse before shipment.
Visual Check: We invite you to make a video call to inspect the Beveled Ends and Surface Painting quality in real-time.

1. Surface Protection

Coating: Black Varnish/Paint to prevent rust during sea shipment.

End Protection: All pipe ends are beveled and protected with Plastic Caps (Green/Blue/Black).

2. Expert Container Loading (Save 30% Freight) We don't just ship air. We offer a Nesting Plan:

We can load 2" pipes inside 8" pipes.
We can load 8" pipes inside 12" pipes.
Benefit: This increases the tonnage per container and reduces your average shipping cost per ton.
Max Weight: Up to 26 Tons per 20ft container (depending on destination port regulations).

Why Buy Stock from Cangtie?

1. Instant Delivery (7 Days): Don't wait 45 days for production. Our warehouse holds 3,000+ tons of regular sizes (2"-8") ready to ship immediately.
2. No MOQ (Minimum Order Quantity): Need just 10 pieces for a repair job? No problem. We support small quantity orders from our stock list.
3. Professional Loading (Save Freight): As mentioned in our "Packing" tab, our Nesting Plan (loading small pipes into big pipes) can save you 30% on ocean freight.
4. Mixed Container: You can mix different sizes (e.g., 2" + 4" + 6") in one container to optimize your inventory.

📝 Inquiry Checklist (Copy this to get a fast quote) To give you the most accurate price immediately, please let us know:

Size: OD (e.g., 4 inch) and Wall Thickness (e.g., SCH40).
Standard: A106 Gr.B or API 5L?
Length: 5.8m or 11.8m?
Quantity: How many tons or pieces?
Ends: Beveled or Plain?

Recommend Products