Seamless steel pipe

Product catalogue

live a message

Seamless steel pipe has a better pressure-bearing capacity and is stronger than ERW welded steel pipe. Therefore it is widely used in high pressure equipment, heat and boiler industry. The weld seam of general welded steel pipe is the weak point and the quality affects the overall performance.

Seamless steel pipe introduction

Seamless steel pipe is a steel pipe made of whole round steel perforated with no welded seam on the surface called seamless steel pipe. Seamless steel pipe can be divided into hot-rolled seamless steel pipe, cold-rolled seamless steel pipe, cold-drawn seamless steel pipe, extruded seamless steel pipe, top pipe, etc. according to the production method. According to the cross-sectional shape, seamless steel pipe is divided into two types: round and shaped. Shaped tubes are square, oval, triangular, hexagonal, melon, star, finned tubes, etc. The maximum diameter is 900mm, and the minimum diameter is 4mm. depending on the use, there are thick-walled seamless steel pipe and thin-walled seamless steel pipe. Seamless steel pipes are mainly used as petroleum geological drilling pipes,
Steel billets and coils are sent to pipe mills to be prepared for making carbon steel pipes. Depending on the capacity of the pipe mill and the end use of the final product, the castings are made into pipe through four different manufacturing processes. Seamless carbon steel pipe, as the name implies, has no longitudinal welds. Essentially, it is a solid piece of homogeneous steel. A solid billet is simply heated and then stretched over a series of mandrels until the pipe reaches the desired diameter and wall thickness.

Chemical components & mechanical properties

Standard	Grade	Chemical Components (%)					Mechanical Properties
ASTM A53	Grade	C	Si	Mn	P	S	Tensile STrength(Mpa)	Yield STrength(Mpa)
	A	≤0.25	-	≤0.95	≤0.05	≤0.06	≥330	≥205
	B	≤0.30	-	≤1.2	≤0.05	≤0.06	≥415	≥240
ASTM A106	A	≤0.30	≥0.10	0.29-1.06	≤0.035	≤0.035	≥415	≥240
ASTM A106	B	≤0.35	≥0.10	0.29-1.06	≤0.035	≤0.035	≥485	≥275
ASTM SA179	A179	0.06-0.18	-	0.27-0.63	≤0.035	≤0.035	≥325	≥180
ASTM SA192	A192	0.06-0.18	≤0.25	0.27-0.63	≤0.035	≤0.035	≥325	≥180
API 5L PSL1	A	0.22	-	0.90	0.030	0.030	≥331	≥207
	B	0.28	-	1.20	0.030	0.030	≥414	≥241
	X42	0.28	-	1.30	0.030	0.030	≥414	≥290
	X46	0.28	-	1.40	0.030	0.030	≥434	≥317
	X52	0.28	-	1.40	0.030	0.030	≥455	≥359
	X56	0.28	-	1.40	0.030	0.030	≥490	≥386
	X60	0.28	-	1.40	0.030	0.030	≥517	≥448
	X65	0.28	-	1.40	0.030	0.030	≥531	≥448
	X70	0.28	-	1.40	0.030	0.030	≥565	≥483
API 5L PSL2	B	0.24	-	1.20	0.025	0.015	≥414	≥241
	X42	0.24	-	1.30	0.025	0.015	≥414	≥290
	X46	0.24	-	1.40	0.025	0.015	≥434	≥317
	X52	0.24	-	1.40	0.025	0.015	≥455	≥359
	X56	0.24	-	1.40	0.025	0.015	≥490	≥386
	X60	0.24	-	1.40	0.025	0.015	≥517	≥414
	X65	0.24	-	1.40	0.025	0.015	≥531	≥448
	X70	0.24	-	1.40	0.025	0.015	≥565	≥483
	X80	0.24	-	1.40	0.025	0.015	≥621	≥552

Seamless steel pipe specification

Standard	API, ASTM, BS, DIN, GB, JIS
Outside Diameter	21.3-1420mm
Wall Thickness	2.11-300mm
Dia Tolerance	Control with in the standard, OD:+-1%, WT:+-10%
Materials	10#,20#,45#,Q235,Q345,Q195,Q215,Q345C,Q345A
	ASTM A53A/A53B/ A178C/A106B API5L
	ST37,ST37-2,DIN 1629 ST35, ST45,DIN 17175 ST35.8,DIN 17175 19Mn5
	16Mn,Q345B,T1,T2,T5,T9,T11,T12,T22,T91,T92,P1,P2,P5,P9,P11,P12,P22,P91,P92,15CrMO,Cr5Mo,10CrMo910,12CrMo,13CrMo44,30CrMo,A333 GR.1,GR.3,GR.6,GR.7
	Gr.B,X42,X46,X52,X60,X65,X70,X80,X100
Inspection	ISO,BV,SGS,MTC
Packing	Steel strip packed. Standard Export Seaworthy Package.Suit forall kinds of transport,or as required
MOQ	1 ton,sample order accepted
Shipment time	Within 7-10 workdays after receiving deposit or L/C
Application	Widely used in Structure, Accessorize,Construction, Fluid transportation,machinery parts,the stress parts of the automobile tractor parts and so on

Hot sale product

wholesale steel seamless pipe	wholesale seamless steel tube pipe quotes
wholesale steel pipes seamless astm a53 supplier	steel seamless pipes factory
wholesale stainless steel seamless pipes	steel seamless pipes
wholesale stainless steel seamless pipe	steel seamless pipe supplier
wholesale stainless steel 304 seamless pipe	steel seamless pipe quotes
wholesale seamless steel tube pipe supplier	steel seamless pipe manufacturers

lndustries Served

Every industry has its unique set of material specifications and needs. That’s why you can count on the exceptional experience and industry knowledge of the professionals at Kuaima Steel - Meeting the Exact Needs of Every Industry That Uses steel.

Machinery manufac- turing industry
Power Generation
Oil & Gas
Manufacturing
Construction
Ship Building
Automobile manufacturing
Pipe Fabrication

Our main export country

We are a well known worldwide exporter of Seamless steel pipe, Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Italy, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Philippines, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, China, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.