Seamless Steel Pipe(SMLS Pipe)

group name: seamless steel pipe

Min Order: 30 ton

brand name: Yuantai Derun Steel Pipe Manufacturing Group

model: ytdr-Seamless Steel Pipe

Nearest port for product export: XINGANG PORT TIANJIN CHINA, TANGSHAN CHINA, SHANGHAI CHINA, DALIAN PORT

Delivery clauses under the trade mode: FOB, CFR, CIF, EXW

Acceptable payment methods: T/T, L/C, Cash

update time: Sun, 09 Nov 2025 06:08:21 GMT

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Paramtents

Certification ISO/CE/ASTM/AS
Delivery time 7-30 days
Tolerance as required
Place of origin China
Thickness 2mm-50mm
Length 0.5-24m or as required
Diameter Φ：21.3mm-914mm
Standard API 5L ASTM A106/A53/A500/A501 EN10210/10219
Grade X42/52/60/65/70 Gr.A/B/C,S275/355/235/420/460
Supply capacity Annual output of 5 million tons

Packging & Delivery

Min Order30 ton

Briefing

Seamless Steel Pipe & Tube,Carbon Seamless Steel Pipe,SMLS Pipe & Tube, CS Seamless Pipe,Black Seamless Pipe, GI Seamless Pipe

Detailed

Seamless Steel Pipe(SMLS Pipe)

CS seamless pipe Sizes:

Maximum diameter: 36" (914.4mm) minimum diameter: 1/４" (１０.3mm)

Maximum thickness: 60mm mininmum thickness: 2.11mm

SCH: SCH10,SCH20,STD,SCH40,SCH60,XS,SCH80,SCH100,SCH120,SCH160,XXS

Standard of carbon seamless steel pipe

ASTM A53 Gr.B	Black and hot-dipped zinc-coated steel pipes welded and seamless
ASTM A106 Gr.B	Seamless carbon steel for high temperature service
ASTM SA179	Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes
ASTM SA192	Seamless carbon steel boiler tubes for high pressure
ASTM SA210	Seamless Medium-carbon boiler and superheater tubes
ASTM A213	Seamless alloy-steel boiler, superheater, and heat-exchanger tubes
ASTM A333 GR.6	seamless and welded carbon and alloy steel pipe intended for use at low temperatures.
ASTM A335 P9,P11,T22,T91	Seamless ferritic alloy-steel pipe for high-temperature service
ASTM A336	Alloy steel forgings for pressure and high-temperature parts
ASTM SA519 4140/4130	Seamless carbon for mechanical tubing
API Spec 5CT J55/K55/N80/L80/P110/K55	Seamless steel pipe for casing
API Spec 5L PSL1/PSL2 Gr.b, X42/46/52/56/65/70	Seamless steel pipe for line pipe
DIN 17175	Seamless steel tube for elevated temperature
DN2391	Cold drawn seamless prevision pipe
DIN 1629	Seamless circular unalloyed steel tubes subject to special requirements

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

Classfication of carbon seamless steel pipe

Types	Application
Structure Purposes	General structure and mechanical
Liquid Services	Petroleum, gas and other fluids conveying
Low and Medium Pressure Boiler Tube	Steam and boiler manufacturing
Hydraulic Pillar Service	Hydraulic support
Auto Semi-shaft Casing	Auto sem-shaft casing
Line Pipe	Oil and gas conveying
Tubing and Casing	Oil and gas conveying
Drill Pipes	Well drilling
Geological Drilling Pipe	Geological drilling
Furnace tubes, heat exchangers tubes	Furnace tubes, heat exchangers

Tolerances of carbon seamless steel pipe

Pipe types	Pipe sizes(mm)	Tolerances
Hot rolled	OD<50	±0.50mm
	OD≥50	±1%
	WT<4	±12.5%
	WT 4～20	+15%, -12.5%
	WT>20	±12.5%
Cold drawn	OD 6～10	±0.20mm
	OD 10～30	±0.40mm
	OD 30～50	±0.45
	OD>50	±1%
	WT≤1	±0.15mm
	WT 1～3	+15%, -10%
	WT >3	+12.5%, -10%

Uses:

Petroleum cracking pipe，Boiler and superheated steam pipe，Boiler Tube，Mechanical structure pipe，Automobile half axle sleeve，Ship pipe，Geological drilling pipe，petroleum pipe，line pipe，Water pipe，Natural gas pipeline，Container tube

Mechanical properties of seamless pipes

Strict product inspection

Each steel pipe must pass the inspection layer by layer. Only the products that pass the inspection can leave the factory. Never let an unqualified product flow into the market

Seamless steel pipe coating:

3PE	3PP	FBE Coating	Epoxy Coating
Special Painting	Galvanization	Oiling	Painting
Bare	Galvanized aluminum magnesium	anticorrosive

Black seamless pipe production cycle:

Under normal conditions，3-30 days，It also depends on the quantity and difficulty of production.Can communicate with the account manager.Contact Us now!

Seamless steel pipe Delivery cycle

Southeast Asia generally takes 15 days, South Africa takes 45 days, the Middle East takes 30 days, Europe takes 45 days, Japan takes 5 days, India takes 30 days, North America takes 30 days, Russia's Far East takes 7 days, and South Korea takes 5 days