China Supplier Steel Tinplate - API 5L Steel Line Pipe Plate – Haihui

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China Supplier Steel Tinplate - API 5L Steel Line Pipe Plate – Haihui Detail:

Modern pipeline steel is a low-carbon or ultra-low-carbon microalloyed steel, which is a product with high technical content and high added value. Most of the new technology achievements in the metallurgical field in the past 20 years have been applied to the production of pipeline steel. The development trend of pipeline engineering is large pipe diameter, high-pressure rich gas transportation, high cooling, high corrosion use environment, and subsea pipeline wall thickness. Therefore, modern pipeline steel should have high strength, low Bauschinger effect, high toughness and brittleness resistance, low weld carbon content and good weldability, and resistance to HIC and H2S corrosion.

The pipeline steel plate is used to manufacture welded line pipes, because seamless line pipes are made of round bar, not steel plates. Medium thick plate is generally used to produce thick wall straight seam welded pipe, and the coil steel is used to produce electric resistane welded(ERW) pipe and spirally submerged arc welded(SSAW) pipe. Nowadays, more and more clients require pipeline steel plate to produce line pipes because the steel plates can be used to manufacture bigger diameter pipes, in addition, the price of welded pipes is usually lower than that of seamless pipes.

Line pipe steel plate is key material for production of ERW line pipe, LSAW line pipe, SSAW line pipe, which are used in pipe line construction in oil, gas and water transport, it can be used in manufacturing pressure fluid transmission construction.

Extremely low arctic temperatures, extreme pressures in the deep ocean, acid media: even the most fierce conditions have no negative effect on our linepipe plates. Linepipe plates are able to work in depths of up to 2,800 meters below the sea surface.

We also offer roll-bonded clad offshore structural steel plate with a corrosion-resistant cladding for the highest demands in sour-gas application. As a specialist in modern thermo mechanical rolling technology with accelerated cooling, we are among the world’s industry leaders.

API 5L Steel Line Pipe Plate1
API 5L Steel Line Pipe Plate3
API 5L Steel Line Pipe Plate4

API 5L Grade	Yield Strength	Tensile Strength	Yield to Tensile Ratio	Elongation
	min.	min.	(max.)	min.
	(ksi)	(ksi)		%
A	30	48	0.93	28
B	35	60	0.93	23
X42	42	60	0.93	23
X46	46	63	0.93	22
X52	52	66	0.93	21
X56	56	71	0.93	19
X60	60	75	0.93	19
X65	65	77	0.93	18
X70	70	82	0.93	17
X80	80	90	0.93	16

Standard

Grade

API 5L

A25

Gr A

GrB

X42

X46

X52

X56

X60

X65

X70

GB/T 9711

ISO 3183

L175

L210

L245

L290

L320

L360

L390

L415

L450

L485

PSL	DELIVERY CONDITION	PIPE GRADE/ STEEL GRADE (a), (b)
PSL1	As-rolled, normalizing rolled, normalized or normalizing formed	L175 or A25, L175P or A25P, L210 or A
PSL1	As-rolled, normalizing rolled, thermomechanical rolled, thermomechanical formed, normalizing formed, normalized, normalized and tempered; or, if agreed, quenched and tempered for SMLS pipe only.	L245 or B
PS1	As-rolled, normalizing rolled, thermomechanical rolled, thermomechanical formed, normalizing formed, normalized, normalized and tempered or quenched and tempered.	L290 or X42, L320 or X46, L360 or X52, L390 or X56, L415 or X60, L450 or X65, L485 or X70
PSL1	As-rolled	L245R or BR, L290R or X42R
PSL2	Normalizing rolled, normalizing formed, normalized or normalized and tempered	L245N or BN, L290N or X42N, L320N or X46N, L360N or X52N, L390N or X56N, L415N or X60N
PSL2	Quenched and tempered	L245Q or BQ, L290Q or X42Q, L320Q or X46Q, L360Q or X52Q, L390Q or X56Q, L415Q or X60Q, L450Q or X65Q, L485Q or X70Q,L555Q or X80Q, L625Q or X90Q (c) , L690Q or X100Q (c)
PSL2	Thermomechanical rolled or thermomechanical formed	L245M or BM, L290M or X42M, L320M or X46M, L360M or X52M, L390M or X56M, L415M or X60M, L450M or X65M, L485M or X70M,L555M or X80M
PSL2	Thermomechanical rolled	L625M or X90M, L690M or X100M, L830M or X120M

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