L245 L290 L360 L415 L480 GR.B X42 X46 X56 X65 X70 X80 X100 carbon
steel pipe
Description:
Carbon steel pipe can be divided into seamless steel pipe, straight
steel pipe, spiral steel pipe, high frequency welded steel pipe and
so on.Carbon steel seamless steel pipe is a kind of long steel.
The pipe has a hollow section and is used in a large number of
pipelines for fluid transportation, such as those for oil, natural
gas, gas, water and some solid materials.
Generally, the outer diameter of hot-rolled seamless pipe is
greater than 32mm, the wall thickness is 2.5-75mm, the outer
diameter of cold-rolled seamless pipe can be up to 6mm, the wall
thickness can be up to 0.25mm, and the outer diameter of
thin-walled pipe can be up to 5mm, the wall thickness is less than
0.25mm, and the precision of cold rolling is higher than that of
hot rolling.
General carbon steel pipe: it is made of 16Mn, 5MnV and other
low-alloy structural steels, such as 10, 20, 30, 35, 45, 45
etc.Seamless pipes made of mild steel such as 10 and 20 are mainly
used for fluid transportation pipes.The seamless pipe made of
medium carbon steel such as 45 and 40Cr is used to make mechanical
parts, such as mechanical parts of cars and tractors.Carbon steel
tubes are generally used for strength and flattening tests.The
hot-rolled steel pipe is delivered in the hot-rolled or
heat-treated condition;Cold rolling is delivered as heat treatment.
Specification:
Main steel grade:
L245, L290, L360, L415, L480, gr.b, X42, X46, X56, X65, X70, X80,
X100 and other steel grades.
Standard:API SPEC 5L, ISO3183, GB/T9711
API 5L specification (OD WT) :1.13 "~48.00" 0.133 "~1.25"
| Standard | Grade | Tensile strength (MPa) | yield strength | Yield specific(MPa) | elongation (%) | 0℃impact Akv (J) | heat treatment |
| API SPEC 5L GB/T9711 | L245/B | ≥415 | 245～440 | ≤0.80 | 22 | ≥40 | normalized |
| API SPEC 5L GB/T9711 | L290/X42 | ≥415 | 290～440 | ≤0.80 | 21 | ≥40 | normalized |
| API SPEC 5L GB/T9711 | L360/X52 | ≥460 | 360～510 | ≤0.85 | 20 | ≥40 | normalized |
| API SPEC 5L GB/T9711 | L415/X60 | ≥520 | 415～565 | ≤0.85 | 18 | ≥40 | normalized |
| API SPEC 5L GB/T9711 | L450/X65 | ≥535 | 450～570 | ≤0.90 | 18 | ≥40 | Quench and temper |
| API SPEC 5L GB/T9711 | L485/X70 | ≥570 | 485～605 | ≤0.90 | 18 | ≥40 | Quench and temper |
| Product Level | Steel grade | Chemical composition, % |
| C | Mn | P | S | Si | V | Nb | Ti | CEpcm |
| PSL 1 | B or L245 | ≤0.28 | ≤1.20 | ≤0.030 | ≤0.030 | - | - | - | - | - |
| x42 or L290 | ≤0.28 | ≤1.30 | ≤0.030 | ≤0.030 | - | - | - | - | - |
| X46 or L320 | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - |
| X52 or L360 | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - |
| X56 or L390 | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - |
| X60 or L415 | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - |
| X70 | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - |
| PSL 2 | BR or L245R | ≤0.24 | ≤1.20 | ≤0.025 | ≤0.015 | ≤0.40 | c | c | ≤0.04 | ≤0.25 |
| X42R or L290R | ≤0.24 | ≤1.20 | ≤0.025 | ≤0.015 | ≤0.40 | ≤0.06 | ≤0.05 | ≤0.04 | ≤0.25 |
| BN or L245N | ≤0.24 | ≤1.20 | ≤0.025 | ≤0.015 | ≤0.40 | c | c | ≤0.04 | ≤0.25 |
| X42N or L290N | ≤0.24 | ≤1.30 | ≤0.025 | ≤0.015 | ≤0.40 | ≤0.06 | ≤0.05 | ≤0.04 | ≤0.25 |
| X46N or L320N | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.40 | ≤0.07 | ≤0.05 | ≤0.04 | ≤0.25 |
| X52N or L360N | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | ≤0.25 |
| X56N or L390N | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | ≤0.25 |
| X60N or L415N | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | - |
| X65N or L450N | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | - |
| X70N | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | - |
| X80 | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | |
Product Show:
Applications:
Tubing is the pipe used for producing or injecting fluid in the
downhole, and casing is the steel pipe used for oil and gas well
wall in oil production, which plays the role of fixing wellhead and
protecting tubing.
