Hot Dipped Galvanized Pipe● Hot dipped galvanized pipe made by black pipes dipped into zinc pool for galvanized. Zinc coating :275 – 600g /m2Steel Grade:Q195-Q345, S235JR, S275JR, S355JR, S355J2H, STK400/500.

Pre – galvanized Pipe● Pre - galvanized pipe : pre-galvanized pipe is made of hot dipped galvanized steel strip directly ,zinc coating : 80 – 120g/m2 Usage: Used for low pressure liquid delivery, such as water, gas, and oil

The normal standard are GB/T6728:2002 , ASTM A500 , JIS G3466 , EN10210 ,EN10219, ASTM A500 Gr. A.B.C.Steel Grade: Q195-Q235 , Q345 , S235, S355, S235JR, S355JR.STK400/500

Calculation formula is : (OD-TH) * TH * 0.02466 * lengthattention: OD is outer diameter, TH is thickness and the unit of measurement is mm.

Calculation formula is : (OD-TH) * TH * 0.02466 * length*1.03attention: OD is outer diameter, TH is thickness and the unit of measurement is mm.

The normal width of tinplate coil is 600mm to 1250mm. Tinplate specificationsSteel Type SPCC, MRTemper(BA&CA) T1~T5Coating 1.1~11.2g/m2Thickness and tolerance 0.15~0.50mm(Tolerance: _+0.01 mm)Width & tolerance 300~1000mm (Tolerance: 0~3mm)Cut length & tolerance 450~``50mm (Tolerance: 0~3mm )Coil inside diameter 420/508mmCoil Weight 3~10 MTPassivation ...

The normal thickness of the tinplate gauge is 0.13mm to 0.45mm. The Tinplate specification as following: 1, Reference standard: GB2520-88, JIS G3303-1997 and DIN EN10203-912, Material: SPCC / MR 3, Thickness available: 0.13mm to 0.45mm4, Width available: 600mm to 1250mm5, Temper grade: T1 - T6 / DR8 BA and CA both.6, Tin coating: ordinary 2.8g/2.8g, 5.6g/5.6g, We also can produce according to c...

Tin coating weightTypeDesignation of tin coating weightMin.average tin coating weight(g/m2)Former Coating DesignationEqual tin coating1.4/1.41.2/1.2#152.2/2.22.0/2.0#202.8/2.82.45/2.45#255.6/5.65.05/5.05#508.4/8.47.55/7.55#7511.2/11.210.1/10.1#100Differentially Coating1.4/2.81.2/2.45#15/252.2/2.82.2/2.45#20/252.8/5.62.45/5.05#25/502.8/8.42.45/7.55#25/752.8/11.22.45/10.1#25/1005.6/8.45.05/7....

Tinplate specificationsSteel Type SPCC, MRTemper(BA&CA) T1~T5Coating 1.1~11.2g/m2Thickness and tolerance 0.15~0.50mm(Tolerance: _+0.01 mm)Width & tolerance 300~1000mm (Tolerance: 0~3mm)Cut length & tolerance 450~``50mm (Tolerance: 0~3mm )Coil inside diameter 420/508mmCoil Weight 3~10 MTPassivation 311Oiling DOSSurface Finish Bright...

Standard for temperChinese StandardJapanese StandardAmerican Standard European StandardGB/T 2520-2008JIS G3303-2008ASTM A623M-06aDIN EN10202-2001T-1 T-1T-1 (T49)TS230T1.5———T-2T-2T-2 (T53)TS245T-2.5T-2.5 TS260T-3T-3T-3 (T57)TS275T-3.5——TS290T-4T-4T-4 (T61)TH415T-5T-5T-1 (T65)TH435DR-7M—DR-7.5TH520DR-8DR-8DR-8TH550DR-8M—DR-8.5TH580DR-9DR-9DR-9TH620

Chemical composition % of the ladle analysis of grade Q235C(％)Si(％)Mn(％)P(％)S(％)Cr(％)Ni(％)Cu(%)0.14～0.22≤0.300.30～0.65≤0.045≤0.050≤0.30≤0.30≤0.30

ASTM A500 is similar to Q235 in China.

Seamless PipeGrade: 10#, 20#, 35#, 45#, 16Mn, DIN 1629: St37.0, St44.0, St52.0 API 5L : A B X42 X46, X52, X60, X65, X70, X80.Standard: GB/T8162, GB/T8163, ASTM A53, ASTM A106, DIN1629, API 5L. ASTM A 106: GR. A, GR. B, GR. C

Surface FinishHot Dipped GalvanizedElectro GalvanizedBlackSpecification0.15mm-6.0mm0.28mm-5.0mm0.16mm-5.0mmTensile Strength300-1500N/mm2300-1400N/mm2300-1500N/mm2Elongation15%15%15%Zinc Coating30-366g/m212-120g/m2Packing1kg-800kg, both spool type and coil typeStandardBS1442, BS1443

Supply Grade:201/202/301/302/303/304/304L/304H/304N/305/309/309S/310S/316/316L/316Ti/316N/316LN/317/317L/321/321H/347/347H/408/409/410/416/420/430/436/439/440/441/443/444/620/630/904LSupply Standard: ASTMA312,A213,A376,A789,A790,A376,A249,EN10217-7-2005,GB14976 2002,GB13296-2009, JIS G3459-2004,JIS3463-2006

Scaffolding Steel Tube scaffolding steel tube also have black and galvanized. Galvanized is better than black. Supply Conditions Supply Grade: Q235B, Q345B, S235JR, S275JR, S355, S355JR,STK400/STK500.Supply Standard: BS1139-1775, EN1039, EN 10219, JIS G3444:2004.Specification: O.D 21.3mm-406.4mm, Thickness 0.6mm-20.0mm.Length: Standard length is 6m and 12m, cut to length is available upon reque...

Scaffolding Steel Tubescaffolding steel tube also have black scaffolding tube and galvanized steel tube. Supply Conditions Supply Grade: Q235B, Q345B, S235JR, S275JR, S355, S355JR,STK400/STK500.Supply Standard: BS1139-1775, EN1039, EN 10219, JIS G3444:2004.Specification: O.D 21.3mm-406.4mm, Thickness 0.6mm-20.0mm.Length: Standard length is 6m and 12m, cut to length is available upon request.Surfac...

Supply ConditionsSupply Grade: Q195-Q235, Q345, S235, S355, S235JR, S355JR，STK400/500.Supply Standard: GB/T6728:2002, ASTMA500, JISG3466, EN10210, EN10219, ASTM A500 Gr. A.B.C.Specification: Size 10*10-500*500mm, Thickness 0.6mm-25.0mm.Length: Standard length is 6m and 12m, cut to length is available upon request.Surface finished: Black, Bare, Varnish coating/Anti rust oil, Protective Coatings

Hollow section:According to the different production process:1. Hot rolled hollow section .2.Colled rolled hollow section.Also we have galvanized hollow section.

Our factory can produce welded pipe by different standard .now from all of the world the main standard include : GB,ANSI ,ASME ,ASTM,JIS,DIN,BS,EN . diffrent standard has different requirement .welcome friends can ask question to us ,we can answer for you !

square pipe standard include : ASTMA53,BS1387-1985,GB/T3091-2001,GB/T13793-92, GB/T6728-2002material include :Q195,Q215,Q235,Q345

galvanized steel pipe is a kind of pipe ,the surface will be covered by zinc .so the kind of galvanzied is1. the hot dipped galvanized steel pipe 2. the pre galvanized steel pipe3 cold galvanized steel pipe