Meta Title:‌

Premium Seamless Steel Tubes - Manufacturer & Supplier | Blubro

Meta Description:‌

Blubro supplies high-quality seamless steel tubes for industrial and mechanical applications. Various grades, sizes, and specifications available with competitive global pricing.

Keywords:‌

seamless steel tube, seamless pipe, precision steel tubing, hydraulic cylinder tube, boiler tube, mechanical tubing, China steel manufacturer

Product Specifications:‌

Material Composition:‌

Grades Available: 20#, 45#, 16Mn, ST52, ASTM A106/A53

Outer Diameter: 10mm-426mm

Wall Thickness: 1mm-40mm

Length: 5.8m-12m (standard) or custom cut

Standard: ASTM, DIN, JIS, GB, EN

Manufacturing Process:‌

Hot-rolled or cold-drawn production

Rotary piercing technology

Annealing and heat treatment

Ultrasonic testing for defects

Surface finishing (peeled/turned/polished)

Technical Parameters:‌

Tensile Strength: 375-550MPa

Yield Strength: 205-310MPa

Elongation: 24-35%

Hardness: HRB 65-80

Straightness: ≤1.5mm/m

Key Applications:‌

✔ Hydraulic systems

✔ Boiler and heat exchanger

✔ Automotive components

✔ Oil and gas pipelines

✔ Machinery parts

Competitive Advantages:‌

Wall Uniformity‌ - ±5% thickness tolerance

Surface Quality‌ - Ra≤0.8μm surface roughness

Custom Solutions‌ - Special alloys and dimensions

Quality Certifications‌ - ISO 9001, PED, API 5L

Production Capacity‌ - 50,000 tons annual output

Technical Support‌ - Application engineering

Pricing Structure:‌

FOB Price Range: 

800

−

800−1,500/ton (varies by spec)

MOQ: 15 tons (standard sizes)

Payment Terms: LC or TT 30% deposit

Delivery Lead Time: 20-35 days after confirmation

Company Highlights:‌

80,000m² production base with 3 tube mills

Complete testing facilities (hydrostatic/eddy current)

15 years of seamless tube expertise

One-stop service from material to logistics

24/7 multilingual support (English/Spanish/Russian)

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