$700-900 /Ton
| Payment Type: | L/C,T/T,D/P,D/A,Paypal |
| Incoterm: | FOB,CFR,CIF,EXW,FAS,FCA,CPT |
| Min. Order: | 1 Ton |
| Transportation: | Ocean |
| Port: | Tianjin,Shanghai,Qingdao |
Brand: Youfa
Standard: Bs, Astm, Gb, Jis, Din, Api
Material: 10mowvnb, Stpa22-Stpa26, Mo, 10cr9mo1vnb, Stba20-Stba26, Mn-V Alloy, St35-St52, Api J55-Api P110, A53-A369, Stpg42, Q195-Q345, 15nicumonb5, 10#-45#, Crni Alloy, Cr-Mo Alloy, 16mn, Stb35-Stb42
Section Shape: Round
Place Of Origin: China
Application: Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, Oil Pipe, Chemical Fertilizer Pipe, Structure Pipe
Production Process: Hot Rolled
Special Tube: Api Pipe, Emt Pipe, Thick Wall Pipe
Whether Alloy: Is Alloy
Tolerance: ±1%
Category: Welded Steel Pipe
Processing Service: Bending, Welding, Decoiling, Punching, Cutting
| Selling Units | : | Ton |
| Package Type | : | Stadatd Export Package |
| Picture Example | : |
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3 Layer PE Coating Steel Pipe Technical Instructions
Structure of the 3PE coating steel pipe
Three layer PE coating anti-corrosive steel pipe carry out the standard of GB/T23257-2009 and DIN30670.
Structure:inner steel pipe,epoxy powder coating,middle layer of adhesive,outer layer of high density polyethylene
The advantages of antiseptic pipe
1. Perfect impact resistance, friction resistance, shock resistance
2. High acid alkali salt resistance
3. High electrical-shock resistance
4. low oozing water rate
5. Long use time
3PE coating manufacturing process
Production process 
Steel pipe inspection→Steel pipe pre-heating→Steel pipe shot-blasting→Anchor pattern depth/Cleanness inspection→Steel pipe medium→frequency heating→Epoxy powder spraying→Adhesive coating→Polyethylene Wrapping-Water cooling to 60ºC below→Online electric spark→Pipe end treatment→Finished product inspection→Product marking→Certification sticking→In storage 
Specification of Thickness of Anti-corrosive Coating Layer
| DN of steel pipe | Epoxy powder | Adhesive Layer | Minimum thickness of the coating(mm) | |
| Common Level(G) | Strengthen Level(S) | |||
| DN≤100 | ≥120 | ≥170 | 1.8 | 2.5 |
| 100 | 2.0 | 2.7 | ||
| 250 | 2.2 | 2.9 | ||
| 500≤DN<800 | 2.5 | 3.2 | ||
| DN≥800 | 3.0 | 3.7 | ||
Properties of the Epoxy Powder
| NO. | Item | Indexes |
| 1 | Size distribution(%) | 150μm oversize powder≤3.0 |
| 2 | Volatiles(%) | ≤0.6 |
| 3 | Density(g/m3) | 1.3-1.5 |
| 4 | Gel time(230ºC)/(S) | 15-30 |
| 5 | Fixed time(230ºC)/(min) | ≤3 |
Properties of Fusion Bonded Epoxy Coating
| NO. | Item | Indexes |
| 1 | Adhesive(grade) | ≤2 |
| 2 | Cathodic disbonding(65ºC,48h)/(mm) | ≤8 |
| 3 | Cathodic disbonding(65ºC,30h)/(mm)) | ≤15 |
| 4 | Counter bending(-20,2.5) | No cracks |
Properties of adhesive
| NO. | Item | indexes |
| 1 | Density (g/m3) | 0.920-0.950 |
| 2 | MFR(190ºC,2.16kg)/(g/10min) | ≥0.7 |
| 3 | Vicat softening point(ºC) | ≥90 |
| 4 | Brittle temperature(ºC) | ≤-50 |
| 5 | Oxidation induction time(OIT) | ≥10 |
| 6 | Moisture content(%) | ≤0.1 |
| 7 | Tensile strength(MPa) | ≥17 |
| 8 | Elongation at break(%) | ≥600 |
| ASTM A53 /A106 Chemical Components and Machanical Property | |||||||||||||
| Standard | Steel Grade | Chemical Components | Machanical Property | ||||||||||
| C | Mn | P | S | Cu | Ni | Cr | Mo | V | Tensile Strength (Mpa) | Yield Strength(Mpa) | Elongation (Mpa) | ||
| ASTM A53 | A | ≤0.25 | ≤0.95 | ≤0.05 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥330 | ≥205 | ≥29.5 |
| B | ≤0.30 | ≤1.20 | ≤0.05 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥415 | ≥240 | ≥29.5 | |
| Standard | Steel Grade | Chemical Components | Machanical Property | ||||||||||
| C | Si | Mn | P | S | Cu ,Ni | Cr | Mo | V | Tensile Strength (Mpa) | Yield Strength(Mpa) | Elongation (Mpa) | ||
| ASTM A106 | B | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥415 | ≥240 | ≥30 |
| C | ≤0.35 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥485 | ≥275 | ≥30 | |
| Executive Standard | Grade / Material | Product Name |
| API Spec 5CT | J55, K55, N80, L80,C90, C95, T95, P110, M65 | Specification for Casing and Tubing |
| API Spec 5L PSL1 / PSL2 | A,B X42, X46, X52, X56, X60, X65,. X70 | Specification for Line Pipe |
Sizes:
Maximum diameter: 36" (914.4mm) minimum diameter: 1/2" (21.3mm)
Maximum thickness: 100mm mininmum thickness: 1mm
Uses:
| Chilled water pipe | Steam/condensate pipe | Heat exchanger pipe | Marine/offshore pipe | Dredging pipe | Industrial pipe |
| Oil and gas pipe | Fire fighting pipe | Construction/structure pipe | Irrigation pipe | Drain/sewage pipe | Boiler tube |
Coating:
| 3PE Coating | 3PP Coating | FBE Coating | Epoxy Coating | Special Painting |
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