Products Description
Current seamless steel pipe standards: There are a total of 47 items, including GB/T25, HB3, and 19 for special purposes; Basic 2 products, 45 items
Common standards:
① GB/T2102-2018 Acceptance, packaging, marking, and quality certificate of steel pipes.
② GB/T17395-2008 Seamless steel pipes - Dimensions, shape, weight, and allowable deviations.
③ GB/T5310-2018 Seamless steel pipes for high-pressure boilers.
④ GB/T9948-2018 Seamless steel pipes for petroleum cracking.
⑤ GB/T6479-2018 Seamless steel pipes for high-pressure fertilizer equipment.
⑥ GB/T18248-2018 Seamless steel pipes for gas cylinders.
Size Range:
Outer Diameter (OD): 1/8" to 24" (6mm to 610mm)
Wall Thickness: SCH 10, SCH 40, SCH 80, SCH 160 (Customizable)
Length: 3m to 12m (or as per customer requirements)
Products advantages
1. Superior Strength & Pressure Resistance
Seamless construction eliminates weak points
Withstands higher internal pressure (typically 20%+ more than welded pipes)
Ideal for high-pressure applications (hydraulic systems, oil/gas pipelines)
2. Enhanced Reliability & Safety
No weld seams that could fail under stress
Uniform structure throughout pipe length
Critical for hazardous material transport
Applications
✔ Oil & Gas – Drilling pipes, pipelines, refineries
✔ Power Generation – Boiler tubes, heat exchangers
✔ Chemical Plants – Acid/alkali transport
✔ Automotive/Aerospace – High-stress components
✔ Infrastructure – Structural supports, piling
Why Choose Our Seamless Pipes?
✅ Strict QC: Hydrostatic/ultrasonic tested
✅ Certified: Compliant with API, ASTM, EN, DIN
✅ Global Supply: OEM & bulk order support
✅ Competitive Pricing: Cost-effective for long-term use
fAQ
1. Are seamless pipes more expensive than welded pipes?
Yes, seamless pipes cost 30-50% more due to:
Complex manufacturing process
Higher material waste (billet-to-pipe conversion)
Superior performance in critical applications
2. Can seamless pipes be customized?
Yes! Options include:
Special coatings: Galvanized, epoxy, FBE
Precision cutting: Beveled ends, threaded
Material grades: Tailored chemical compositions
3. What standards do seamless pipes comply with?
API 5L: Petroleum/gas pipelines
ASTM A106/A53: High-temperature service
EN 10216: European standards
DIN 2448: German industrial pipes
4. How do I choose between seamless and welded pipes?
Choose seamless if:
✔ Pressure > 3000 psi
✔ Handling hazardous/corrosive materials
✔ Extreme temperatures involved
Choose welded if:
✔ Budget is limited
✔ Large diameters (>24") needed
✔ For low/medium pressure applications