Audited Supplier
1) The standard of pipe: ISO 2531, EN545 , EN598.
2) Pipe class: K7, K8, K9, C40, C30, C25, etc.
3) Pipe joint: push-on joint(Tyton joint), K type joint, self-restrained joint
4) Effective length: in general, the pipe length is 6m for bulk shipment and 5.7m for container shipment.
5) Internal lining: cement mortar lining as per ISO4179
6) Zinc coating: at least 130g/m2 as per ISO 8179
7) Bitumen painting: at least 70um as per ISO 8179
8) Gaskets are NBR rubber, natural rubber, SBR rubber or EPDM rubber ring as per ISO4633
9) DN 80 - 2,600 mm
10) High strength, lighter than gray iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life
time
11) Checked by automatic inspection equipment
12) Chemical composition: (%)
a) C: 3.5 - 4.0
b) Si: 1.9 - 2.6
c) Mn:0.15 - 0.45
c) P: <0.06
d) S: <0.02
13) Mechanical properties
a) Tensile strength: ≥420MPa
b) Yield strength: ≥300Mpa
c) Hardness: ≤230HB
d) Elongation%: DN80 - 1000 ≥10 DN1200 - 2200 ≥7
14) Process and testing:
a) Induction furnace and treated metal (Chemical analysis of raw material, spheroidizing & Nodularity)
b) Casting (Visual check and weight check)
c) Heat treatment (Micro structure)
d) Hydrostatic test (Pressure test)
e) Dimensional checks (Checking pipe length and joint, OD, wall thickness, appearance)
f) Zinc spraying (Thickness testing)
g) Lining and coating (100% visual check, thickness testing randomly)
i) Marking and packing (100% visual check)
15) The pipe coating can be customized, such as, zinc-aluminum alloy, PU, etc.
Packing: Bundled with steel belts or in bulk
Shipment: In bulk or container
Products in stock
Packing and delivery
Package: Bulk or In bundles, or wrapped with plasic films
Packing: Standard sea worthy packing or as customers' requirement.
Normally if length less than 5.8 meter,20ft container; if length 6-12m,40ft container.
Project Case
Our Certificate 
Company information
Shandong Hongqiao Energy Equipment Technology Co.,ltd is located in Jinan, Shandong Province,
It is a specialized steel sales company integrating domestic trade and foreign trade.The company's products
includestainless steel, seamless pipe,color coated plate, galvanized sheet, aluminized sheet, aluminum sheet,
copper sheetand other profiles,building materials, pipe series. Products are widely used in chemical,
pharmaceutical, electric power,railway, automotive, paper and construction engineering.
The company has long-term close trade relations with ShandongIron and Steel, Tangshan Iron and Steel,
Handan Iron and Steel, Jinxi Iron and Steel and other well-known domestic steel companies
A1: We are factory.
Q2: How long is your delivery time?
A2: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to
quantity.
Q3: Do you provide samples ? is it free or extra ?
A3: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q4:What is the advantage about your company?
A4:Our company has professional team and professional production line.
Q5: The logo and the color can be customized?
A5: Yes, we welcome you to sample custom
Q6: Any other good service your company can provide?
A6:Yes,we can provide good after-sale and fast delivery.
