Black Welded Steel Pipe

Technique

Longitudinal Electronic Resistance Welding (ERW)
High Frequence Welding (HFW)

Material Quality

Steel Grade

Q195 Q215Q235Q345, etc.

Material Type

Available in cold rolled and hot rolled

Size

W.T.

10.0mm-20.0mm

Diameter

40 inch

Length

1m-12m or as your requirement

Surface

There are a variety of methods that can be used to protect steel from corrosion. One such method is galvanization, which involves coating the steel with zinc to prevent rusting. Another option is to apply a 3PE coating – a three-layer protective barrier made up of epoxy resin, adhesive and polyethylene – which is effective at stopping oxidation. Painting is also a common method of protection, with many different types of paint available that offer varying degrees of protection. Coating oil is another option, and is often used when storing steel in outdoor or harsh environments. Lastly, steel stamps can be used to mark the steel with identifying information or codes.

Ends

Different types of pipe end finishes include plain ends, cutting, threaded with coupling, beveled, flange, and more. These finishes serve different purposes depending on the needs of a particular application. For example, plain ends are often used for welding or connecting to another pipe, while threaded ends with couplings may be used when ease of assembly and disassembly is a primary concern. Beveled ends are typically used for butt welding applications, while flange ends are used for connecting to other equipment such as valves or pumps. Understanding the different types of pipe end finishes can help ensure that the right type of finish is selected for a particular application, leading to more efficient and effective operations.

Inspection

We conduct rigorous testing on our products in order to ensure their quality. This includes testing their chemical composition and mechanical properties, as well as subjecting them to a hydrostatic test. We also perform dimensional and visual inspections to verify their physical attributes. In addition, nondestructive inspection techniques are employed to identify any potential issues before they become major problems. Each step in this process is crucial to ensuring the reliability and safety of our products.

Certification

BV, ISO, IAF or as per customer.

Application

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Trade Terms

FOB, CFR, CIF, EXW.

Payment Terms

T/T, L/C at sight
To proceed with the payment, we require a 30% T/T deposit upfront and the remaining 70% is due upon receipt of the BL copy. Kindly arrange for this payment method. Thank you.

Loading Port

Tianjin Port

Cooperation Ship-owner

HPL, YML, MOL, COSCO, MSK, CMA, MSC, HMM, OOCL, UA, NYK are all major players in the shipping industry. Each company has their own strengths and specialties that they bring to the table. For example, COSCO is known for their global reach and large fleet, while MSK boasts a strong focus on sustainability and innovation. Regardless of their individual differences, all of these companies play a crucial role in transporting goods around the world and driving international commerce forward.

21.3mm(1/2")

1.5-2.75 (SCH10S / STD / SCH40)

26.7mm(3/4")

1.5-3.25 (SCH10S / STD / SCH40)

33.4mm(1")

1.8-4.0 (SCH10S / STD / SCH40)

42.3mm(1 1/4")

1.8-4.0 (SCH10S / STD / SCH40)

48.3mm(1 1/2")

：
：SCH10S / STD / SCH40 / XS / SCH80 / SCH160。，：1.8-7.0。，，。

57mm

1.8-7.0

60.3mm(2")

1.8-7.0 (SCH10S / STD / SCH40 / XS / SCH80)

73-76mm(2 1/2")

2.5-7.0 (SCH10S / STD / SCH40 / XS / SCH80)

88.9mm(3")

2.0-8.0 (SCH10S / STD / SCH40 / XS / SCH80)

102mm(3 1/2")

2.3-9.0 (SCH10S / STD / SCH40 / XS / SCH80)

108mm

2.2-9.0

114.3mm(4")

2.0-9.0 (SCH10S / STD / SCH40 / XS / SCH80)

121-127mm

2.5-11.0

133mm

2.75-9.75

140mm(5")

2.5-10.0 (SCH10S / STD / SCH40 / XS / SCH80)

152-159mm

2.5-10.0

165-168mm(6")

2.5-10.0 (SCH10S / STD / SCH40)

180-216mm

2.75-11.5

219mm(8")

2.75-12.0 (SCH10S / SCH20 / SCH30 / STD / SCH40 / SCH60)

273mm(10")

5.0-12.0 (SCH20 / SCH30 / STD / SCH40)

325mm(12")

5.5-13.75 (SCH20 / SCH30 / STD / SCH40 / XS)

355mm(14")

5.5-13.75 (SCH10 / SCH20 / SCH30 / STD / SCH40 / XS)

406mm(16")

5.75-13.75 (SCH10 / SCH20 / SCH30 / STD / SCH40 / XS)

457mm(18")

5.75-17.75 (SCH10 / SCH20 / SCH30 / STD / SCH40 / XS)

508mm(20")

5.75-17.75 (SCH10 / SCH20 / SCH30 / STD / SCH40 / XS)

559mm(22")

5.75-17.75 (SCH10 / SCH20 / SCH30 / STD / XS)

610mm(24")

5.75-17.75 (SCH10 / SCH20 / SCH30 / STD / SCH40 / XS)

660mm(26")

7.5-17.75 (SCH10 / SCH20 / STD / XS)

Equivalent

Q195

GR.A

√

S195

S195

-

Q235

GR.B

-

S235

-

STK400

Q345

GR.C

-

S355

-

STK490

C( %)

Si( %)
(Max)

Mn( %)

P( %)
(Max)

S( %)
(Max)

YS (Mpa)
(Min)

TS (Mpa)

EL( %)
(Min)

Q195

0.06-0.12

0.30

0.25-0.50

0.045

0.05

195

315-390

33

Q235

0.12-0.20

0.30

0.3-0.7

0.045

0.045

235

375-460

26

Q345

(Max)0.2

0.55

1.0-1.6

0.045

0.045

345

470-630

21