2021 China New Design ASTM A139 - Api 5l Line Pipes Grade B To X70 Od From 219mm To 3500mm – Spiral

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Our target should be to consolidate and improve the high-quality and repair of current goods, in the meantime regularly produce new solutions to meet unique customers' needs for Automated Pipe Welding , 3lpe Coating Specification , X52 SSAW Line Pipe Factories , Encouraged with the fast producing current market on the speedy foodstuff and beverage consumables all around the entire world , We're hunting forward to functioning with partners/clients to create good results together.

2021 China New Design ASTM A139 - Api 5l Line Pipes Grade B To X70 Od From 219mm To 3500mm – Spiral Detail:

The Mechanical Properties of the SSAW pipe

steel grade	minimum yield strength Mpa	minimum Tensile strength Mpa	Minimum Elongation %
B	245	415	23
X42	290	415	23
X46	320	435	22
X52	360	460	21
X56	390	490	19
X60	415	520	18
X65	450	535	18
X70	485	570	17

The Chemical composition of the SSAW pipes

steel grade	C	Mn	P	S	V+Nb+Ti
	Max %	Max %	Max %	Max %	Max %
B	0.26	1.2	0.03	0.03	0.15
X42	0.26	1.3	0.03	0.03	0.15
X46	0.26	1.4	0.03	0.03	0.15
X52	0.26	1.4	0.03	0.03	0.15
X56	0.26	1.4	0.03	0.03	0.15
X60	0.26	1.4	0.03	0.03	0.15
X65	0.26	1.45	0.03	0.03	0.15
X70	0.26	1.65	0.03	0.03	0.15

The Geometric tolerance of the SSAW pipes

Geometric tolerances
outside diameter		Wall thickness		straightness		out-of-roundness		mass	Maximum weld bead height
D		T
≤1422mm	＞1422mm	＜15mm	≥15mm	pipe end 1.5m	full length	pipe body	pipe end		T≤13mm	T＞13mm
±0.5% ≤4mm	as agreed	±10%	±1.5mm	3.2mm	0.2% L	0.020D	0.015D	‘+10% -3.5%	3.5mm	4.8mm

Hydrostatic Test

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The pipe shall withstand the hydrostatic test without leakage through the weld seam or the pipe body
Jointers need not be hydrostatically tested, providedthat the portions of pipe used in marking the jointers were successfully hydrostatically tested prior to the joining operation.

Traceablity:
For PSL 1 pipe, the manufacturer shall establish and follow documented procedures for maintaining:
The heat identity until each related chmical tests is performed and conformance with the specified requirements is shown
The test-unit identity until each related mechanical tests is performed and conformance with the specified requirements is shown
For PSL 2 pipe, the manufacturer shall establish and follow documented procedures for maintaining the heat identity and the test-unit identity for such pipe. Such procedures shall provide means for tracing any length of pipe to the proper test unit and the related chemical test results.

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Our advancement depends over the superior machines, exceptional talents and continually strengthened technology forces for 2021 China New Design ASTM A139 - Api 5l Line Pipes Grade B To X70 Od From 219mm To 3500mm – Spiral , The product will supply to all over the world, such as: Russia, Accra, Guyana, Adhering to the principle of Enterprising and Truth-Seeking, Preciseness and Unity, with technology as the core, our company continues to innovate, dedicated to providing you with the highest cost-effective products and meticulous after-sales service. We firmly believe that: we are outstanding as we are specialized.

ASTM A139