API 5L X42N PSL2 Seamless Steel Pipe With 3LPE Coated
Actual Project Cases
Project: PTTEP steel line -Thailand
Supply:API 5L X42N PSL2 3LPE Seamless Steel pipe
Size: 3inch*0.438" 6inch*0.562" 8inch*0.562"
Delivery Condition: Normalizing
Certificate: EN10204-1 3.2 certificate
Marking: API 5L logo+client contract no+brand+product name+size+grade+Heat Number
Packing: with nylon rope, waterproof packing and cloth material packing need add the extra packing costs.
API 5L X42N PSL2 sMLS PIPE Inspection Data
Table 1 chemical analysis(%) for X42 PSL2
C | Mn | Si | P | S | Ni | Cr | Cu | Mo | V | Ti | Al | Nb |
0.18 | 1.36 | 0.27 | 0.013 | 0.0059 | 0.012 | 0.0035 | 0.0047 | 0.0037 | 0.0045 | 0.012 | 0.0047 | 0.0015 |
0.16 | 1.32 | 0.27 | 0.012 | 0.0037 | 0.014 | 0.014 | 0.0078 | 0.0012 | 0.0046 | 0.011 | 0.0059 | 0.0013 |
0.17 | 1.32 | 0.27 | 0.0058 | 0.0026 | 0.012 | 0.00035 | 0.0070 | 0.00074 | 0.0032 | 0.014 | 0.0061 | 0.0011 |
0.17 | 1.36 | 0.27 | 0.0064 | 0.0028 | 0.012 | 0.0022 | 0.0072 | 0.00063 | 0.0032 | 0.014 | 0.0058 | 0.0014 |
Table 2 Mechanical property test for X42 PSL2
location | Tensile test(50℃) | Impact test -10℃(J) | ||||
Tensile | Yield | A(%) | ||||
Body | 513 | 354 | 33.5 | 155 | 157 | 173 |
Body | 530 | 357 | 40.5 | 232 | 184 | 202 |
Body | 507 | 338 | 46.5 | 166 | 151 | 221 |
Body | 517 | 343 | 47.0 | 203 | 197 | 171 |
2
What is the 3LPE?
3LPE Coated Pipes consist of 3 layers for pipeline coating.
Layer 1 consists of Fusion Bonded Epoxy. This later provides protection against corrosion and is fusion bonded with the blasted steel surface.
Layer 2 is a copolymer adhesive which has excellent chemical bonding to the inner layer and the top layer of polyethylene.
Layer 3 is the layer of polyethylene used for protection against any physical damage of the pipes.
The 3 layer polyethylene coated pipes are the preferred choice for transmission of oil and gas around the world. It can withstand varied temperatures and environments ranging from dessert dry lands to deep underwater regions. 3LPE coated steel pipes are used for transportation of drinking water, oil and gas and other fluids. The 3LPE coated pipes can be used in the high temperatures as high as 60o C to 80 oC.
Features of 3LPE coated pipes:
1. Excellent chemical and corrosion resistance preventing steel pipes from any damage.
2. Resistance to cathodic disbondment
3. The external layer of polyethylene prevents any physical damages to either the pipes or the fusion bonded epoxy during handling
4. The 3LPE coated pipes have high performance characteristics and an extended life cycle
