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- 产品描述
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- Commodity name: ERW STEEL PIPE
Outside diameter: NPS 1/2’’-24’’/DN15 – DN600/OD21.3mm to OD610mm, And hot expanded pipe size: OD230*4.08mm ~OD820*18mm Wall thickness: 1.20mm to 22.0mm Length: 5.8m-12m Material: carbon steel, low temperature carbon steel (LTCS), alloy steel, etc. Surface: bare, black painted, hot dipped galvanized, thermal insulation, 3LPE coated, epoxy coated, FBE coated, or any other coating and lining. Pipe end: plain end (PE), beveled end (BE), threaded end (THRD), grooved, flanged, etc.
ERW steel pipe specification:
Outside diameter: NPS 1/2’’-24’’/DN15 – DN600/OD21.3mm to OD610mm,
And hot expanded pipe size: OD230*4.08mm ~OD820*18mm
Wall thickness: 1.20mm to 22.0mm
Length: 5.8m-12m
Material: carbon steel, low temperature carbon steel (LTCS), alloy steel, etc.
Surface: bare, black painted, hot dipped galvanized, thermal insulation, 3LPE coated, epoxy coated, FBE coated, or any other coating and lining.
Pipe end: plain end (PE), beveled end (BE), threaded end (THRD), grooved, flanged, etc.SSAW steel pipe:
ERW (electrical resistance welding) steel pipe is formed by cold forming steel coils into round pipe and welding the longitudinal seam using high-frequency current (HFW), without any filler metal.
Main advantagesHigh efficiency & lower cost: faster production time compared to other production method
Uniform properties: consistent and uniform wall thickness and high quality
Wide applications: used in oil, gas, water, steam, coal gas and other medium transportation, scaffolding, fencing, steel structure, architectures, decorations, earning piles, etc.
Senhai pipeline is equipped with three production lines for ERW pipes, producing pipes with 1/2’’ to 26’’, with annual inventory quantity about 30 thousand tons, with all common sizes up to 20’’.ERW steel pipe manufacturing process flow chart:
ERW steel pipe standard and steel grades:
Standard Standard description Steel grades Size range GB/T3091 Welded steel pipes for low pressure fluid delivery(ERW, SAWL, SAWH) Q195, Q215A, Q215B, Q235A, Q235B, Q275A, Q275B, Q355B, Q355C, Q355D, Q390B Q390C Q390D DN6 (10.20mm) and above, not specified
WT: 1.5mm to 110mm
GB/T9711
(ISO 3183)
Petroleum and natural gas industries-steel pipe for pipeline transportation systems L245/B, L290/X42, L320/X46, L360/X52, L390/X56. ;L415/X60, L450/X65, L485/X70 OD: 0mm (0.405’’) ~2134mm (84’’)
WT:1.7mm(0.068’’)~52mm(2.050’’)
SY/T5040 Welded steel pipe pipes
(LSAW, SSAW, ERW)
GB/T700: Q195, Q215, Q235, Q275
GB/T1591:Q355, Q390, Q420
OD: 273.1mm~2032mm
WT: 7.0mm ~ 20mm,
Or other size and WT upon agreement
GB/T14291
(ISO559)
Welded steel tubes for mine liquid service Q235B, Q355B OD21.3mm~508mm
WT: 2.5mm~20mm
Or other size and WT upon agreement
GB/T13793 Steel pipes with a longitudinal electric (resistance) weld 10#, 20#,Q195、Q215A、Q215B、Q235A、Q235B、Q235C、Q275A、Q275B、Q275C, Q355A、Q355B、Q355C、Q390A、Q390B、Q390C、Q420A、Q420B、Q420C、Q460C、Q460D OD:5mm ~711mm
WT: 0.5mm~20mm
API 5l Specification for line pipe
(SMLS, CW, LFW, HFW, LW, SAWL, SAWH, COWL, COWH)
GR.B, X42, X46, X52, X56, X60, X65, X70,
L245, L290, L320, L360, L390, L415, L450, L485
OD: 10.30mm (0.405’’)~2134mm (84’’)
(double-seam pipe is available if agreed with size OD≥914mm)
WT: 1.7mm (0.068’’)~52mm (2.050’’)
ASTM A53 Pipe, steel, black and hot-dipped, zinc-coated, welded and seamless (type F, type E, type S) Gr. A, GR.B OD: 1/8’’ (DN6)~26’’ (DN650) 10.3mm~660mm
WT: sch10 ~SCH.xxs
ASTM A500 Cold-formed welded and seamless carbon steel structural tubing in round and shapes GR.B, GR.C, GR.D A periphery up to 2235mm (88’’)
WT: up to 25.4mm(1’’)
ASTM A178 ERW carbon steel and carbon-manganese steel boiler and superheater tubes GR. A, GR.C, GR.D OD: 12.7mm(1/2’’)~127mm (5’’)
Min.-wall-thk: 0.9mm (0.035’’)~9.1mm (0.360’’)
ASTM A214 ERW carbon steel heat-exchanger and condenser tubes C: max. 0.18%, Mn: 0.27~0.63%, p: max. 0.035%, s: max.0.035%
Hardness HRB: < 72
OD: up to 76.2mm (3’’)
Min.-wall-thk: not specified
ASTM A795 Black and hot-dipped zinc-coated (galvanized) welded and SMLS steel pipe for fire protection use GR.A, GR.B, GR.C, GR.E, GR.D OD: 21.3mm~273.1mm
NPS1/2~NPS10/DN15~DN250
WT: light weight & standard weight
ASTM A847 Specification for cold-formed welded and seamless high-strength, low alloy structural tubing with improved atmospheric corrosion resistance in round, square, rectangular or special shaped structural tubing Chemical composition of atmospheric corrosion-resistance steel by heat analysis, %:
C Max. 0.20 Mn Max. 1.35 P Max. 0.04 S Max.0.035 Cu Min. 0.20 (if Cr and Si contents are each 0.50 min, then the copper min. Do not apply)
Tensile requirements for round and shaped tubing:
T.S: min. 485mpa; Y.S: min.345mpa; EL: min19%
Welded
OD: max. Periphery of 1626mm (64’’)
WT: max. 15.9mm(0.625’’)
Seamless:
OD: max. Periphery of 813mm (32’’)
WT: 12.7mm (0.500’’) and less
ASTM A252 Welded and seamless steel pipe piles
(SMLS, ERW, FW, LSAW, SSAW)
GR.1, GR.2, GR.3 OD: 152.4mm (6’’)~609.6mm (24’’)
WT: 3.40mm (0.134’’)~12.70mm (0.5’’)
Or any other size and WT upon agreement
ASTM A423 SMLS and ERW low-alloy steel tubes GR.1, GR.2, GR.3 OD: 12.7mm(1/2’’)~127mm (5’’)
Min.-wall-thk: 0.9mm (0.035’’)~12.7mm (0.5’’)
Or any other size and WT upon agreement
ASTM A539 ERW coiled steel tubing for gas and fuel oil lines C Max. 0.15 Mn Max. 0.63 P Max. 0.035 S Max.0.035 T.S: min310 MPa; Y.S: min. 241 MPa; EL: upon calculated as equation
OD: up to 60.3mm(2-3/8’’)
WT: 0.9mm (0.035’’)~3.2mm (0.125’’)
ASTM A1085 Cold-formed welded carbon steel hollow structural sections (HSS) ERW round, square and rectangular Gr.A A periphery: 2235mm (88’’)
WT: 3.8mm (0.148’’)~22mm (0.875’’)
Bs1387 Screwed and socket steel tubes and tubulars and for plain end steel tubes suitable for welding or for screwing to bs21 pipe threads (ERW) C Max. 0.20 Mn Max. 1.20 P Max. 0.045 S Max.0.045 T.S: 320-460mpa; Y.S: min. 195npa; EL: min. 20%
OD: DN 8 ~ DN150
WT: l, m, h
Iso65 Carbon steel tubes suitable for screwing in accordance with iso7/1 P: max. 0.06%, s: max.0.06%
T.S.: 320~520 MPa; EL: min.15%
OD:10.2mm~165.1mm/ DN6~DN150/1/8’’~6’’
WT: series h, m, l1, l2
JIS G3444 Carbon steel tubes for general structure (seamless, ERW, SAW,BW) STK290, STK400, STK490, STK500, STK540 OD: 21.7mm ~1016mm
WT: 2.0mm ~ 22mm
JIS G3457 Arc welded carbon steel pipes (LSAW, SSAW, cold-expanded) STPY400 OD: 355.6mm ~ 2032mm
WT: 6.0mm ~ 15.9mm
JIS G3466 Carbon steel square and rectangular tubes for general structure(ERW, Acr welded) STK400, STK490 Size: square tube: 40x40~350x350mm
rectangular tube: 50x20~400x200mm
WT: 1.6mm~12mm
JIS A5525 Steel pipe piles Skk400, skk490 OD: 318.5mm ~ 2000mm
WT: 9.0mm~16.0mm
En10210 Hot finished structural hollow sections of non-alloy and fine grain steels (seamless or welded, circular, square or rectangular, elliptical-CHS, RHS, EHS) S235JRH, S275JOH, S355JOH, S355J2H,
OD: 21.3mm ~ 1219mm
WT: 2.3mm ~ 25mm
En10217-1/-2 Welded steel tubes for pressure purposes (ERW, SAWL, SAWH, BW) P195TR1, P195TR2, P235TR1, P235TR2, P265TR1, P264TR2 OD: 10.20mm ~1422mm
WT: 1.4mm ~ 40mm
Bs en10219 Cold formed welded structural hollow sections of non-alloy and fine grain steels (EW, LSAW, HSAW) S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, OD: 21.3mm~1219mm
WT: 2.0mm~25mm
GOST 31447 Welded steel pipes for trunk gas, oil pipelines and oil product pipelines. (LSAW, SSAW) K34, K38, K42, K48, K50, K52, K54, K55, K56, K60 OD114~1420mm GOST10704 Electric line welded steel tubes OD: 10mm~1420mm
WT: 1.0mm`~32mm
GOST 20295 Welded steel pipes for main gas and oil pipelines K34, K38, K42, K50, K52, K55, K60 Type1: HFW: OD159-426mm
Type2:SSAW: OD159-820mm
Type3: LSAW: OD530-820mm
As1074 Steel tubes and tubulars for ordinary service P: max. 0.045%; s: max. 0.045%
C equivalent: max. 0.4 (CE=c+mm/6
Y.S: min. 195mpa; T.S: 320~460mpa, EL: min. 20&
OD: DN8~DN150
WT: series l, m, h
AN/NZS1163 Cold-formed structural steel hollow sections (ERW) C250, C350, C450, C250l0, C350l0, C450l0 CHS:610~42.4mm;
RHS: 250x150mm~50x20mm
SHS: 250x250~20x20mm
Introduce
Hebei Senhai Pipeline Co., Ltd. is one professional manufacturer of ERW, SAW, SMLS steel pipes, as per standards of ASTM, ASME, API5L, EN, BS, DIN, GOST, GB, etc. Senhai Pipeline is located in Cangzhou City, which is the famous “Hometown of Pipes and Fittings” in China, about 120km away from Tianjin Seaport and Airport, and 180km from Beijing. Senhai is so professional in producing large dia. thick wall thickness steel pipes by LSAW.
Customized Process
Goods will be strictly tested before delivery, please check carefully after receiving the goods, if there is any problem, please contact us in time.
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FAQ
What kind of company is Hebei Senhai Pipeline Co., Ltd.?
Founded in 2013 and based in Cangzhou, Hebei – China’s well-known “Hometown of Pipes and Fittings”, we are a professional manufacturer and supplier of steel pipes and pipeline accessories. Conveniently located near Tianjin Port and major transportation routes, we specialize in ERW, SAW, and seamless steel pipes, along with pipe fittings and flanges, complying with API 5L, API 5CT, ASTM, EN, GB and other international standards.
What are your main products?
Our core products include seamless steel pipes, straight seam welded pipes, large-diameter thick-wall pipes, butt-welding fittings, forged flanges, and anti-corrosion pipeline products. They are widely used in oil & gas transmission, petrochemical engineering, water supply, drainage, and construction projects.
Do you accept customized orders and what’s your MOQ?
Yes, we provide customized production for size, material grade, wall thickness, length, and anti-corrosion coating. We support small-batch trial orders and flexible MOQ to meet project-specific demands.
What quality certifications and quality control do you have?
We implement strict quality management covering raw material inspection, production process control, and finished product testing. Our products meet multiple international standards, and we issue material test certificates (MTC) to ensure stable performance under high pressure and harsh environments.
How to get a quotation and arrange delivery?
To provide an accurate quote, please send specifications, quantity, destination port, and special requirements. We offer FOB, CFR, CIF terms and cooperate with reliable logistics partners for fast, safe delivery to North America, South America, Eastern Europe, and other regions.
ERW STEEL PIPE
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