ERW 508x20mm API Tube Mill
Raw Material Specification
|
Material |
J55 for oil pipelines |
|
Material Tensile Strength |
42.2-77.3kg/mm2 |
|
Material Yield Strength |
29.5-63.3 kg/mm2 |
|
Coil OD |
Min 1000mm, Max 2200mm |
|
Coil ID |
508mm&610mm&760mm(depend on customer order) |
|
Coil Weight |
Max 30000kg |
|
Coil Strip Width |
Min 500mm, Max 1300mm |
|
Coil Camber |
Max 20mm on 10m (ASTMA 759) |
|
Coil Strip Thickness |
6~20mm, J55 |
|
Coil Condition |
Slit edge (0 / + 0.5 mm) or Mill edge(0 / + 15 mm) |
Production Range
|
Type of production |
API line pipes Square /rec. pipe & structure pipes |
|
Round Tube OD |
219~508mm |
|
Square Hollow Section |
170x170mm~400x400mm |
|
Rectangular Hollow Section |
200x150mm~500x300mm |
|
Tube Thickness |
6~20mm |
|
Tube Cut Length |
Max 15M |
|
Tube Standard |
API J55 |
Line data
|
Line speed |
10~ 35m/min |
|
Line Flow Direction |
Left → Right |
|
Threading Speed |
10m/Min |
|
Pass Line Height |
Fl + 1.100 Mm h |
|
Shear & Welder |
Automatic Shear & Butt Welder |
|
Coil Storage |
Spiral Accumulator |
|
Coil Side Treatment |
Edge Miller |
|
Forming Method |
Flexible Forming |
|
Welder |
1200 Kw HF Welder |
|
Seam Annealer |
1.500 Kw Seam Annealer |
|
Turk's Head Type |
Universal Turk's For Sq / Rec Round Pipe |
|
Tube Cutting |
Milling Cutting |
|
Finishing Parts |
API Line Pipe Parts Square & Rectangular & Structure Pipes Parts |
Scope of supply
The complete 8-20" tube line is divided in Nine sections:
▪ Entry Section
▪ Mill Entry Section
▪ Forming Section
▪ Welding Section
▪ Sizing Section
▪ Cut Off Section
▪ Finishing Section
▪ Electric Equipment
▪ Others
Flow Diagram
Coil skid and coil Car→ Uncoiler with Peeler and hold down roll→ Seven roll Flattener→ Semi Auto shear and end welder→ Spiral accumulator→ Edge milling Machine→Online UT checking coil→ Forming section (FF) → High-frequency induction welding→ Removing External and internal burr→ Polishing Roller→ Online U.T. tester→ Seam annealing→ drawing →Air Cooling→ Water Cooling→ Sizing→ Milling Saw→ Pullout roller table(water flushing) → Straightener→ Pipe End and chamfering machine→ Hydrostatic tester→ U.T. Testing off line→ Weighing and Measuring→ Painting and Marking→ Packing→ Warehousing