Pay attention to the construction of cement mortar lining anti-corrosion steel pipe

- Apr 20, 2019-

Pay attention to the construction of cement mortar lining anti-corrosion steel pipe

There are two methods for construction of cement mortar lined anticorrosive steel pipe.One is ground centrifugation.It is mainly suitable for pipeline lining construction below DN400 caliber.But the underground spraying method, mainly applies to the DN700 caliber above pipeline in the underground anti-corrosion construction.The deformation of steel tube under external pressure becomes flat, mortar will produce "hair" crack, but the mortar to spin off from the wall is very difficult, in the caliber of DN800 mm steel tube wall thickness is 7.1 mm, intercepting a metre long section, 11 mm thick mortar coating, coating line when flat amount 7-8 mm, you can see the cracking of the "hair".When the flattening amount increased to 50mm, the cracks gradually increased to the whole pipe section at the side. According to the experimental results, "hair-like" cracks were generated when the flattening amount was 1% of the pipe diameter. When the flattening amount was 6-9%, the mortar coating began to crack and peeled off when the pipe diameter reached 30%.This must not be allowed during construction.The minimum flatness is 15 mm for DN1100 pipe and 21 mm for DN1800 pipe.Therefore, as the pipe diameter increases, the amount of flattening that produces cracks also increases.It is not easy to bend and deform when the diameter of anticorrosive steel pipe is large.Flat pipe diameter is not easy and easy to bend.It can be concluded that it is not easy for slurry coated steel pipe to flake off due to bending.With a pipe diameter of 200 mm, the length of 9 meters of the pipe, both ends, the middle of the load, bending to rao is 310 mm, mortar is still not affected.In addition, the two ends of the pipe end are hoisted by the crane, and the mercy caused by the dead weight is much smaller than the mercy in the above experiment, which has no influence on the coating.Cement mortar lined anticorrosive steel pipe is used for: municipal engineering: suitable for high-rise building water supply, heat supply network, tap water engineering, gas transmission, buried water transmission and other pipelines.Petroleum: petroleum transportation pipeline, chemical industry, pharmacy, printing and dyeing and other industries conveying corrosive medium process pipeline.Sewage treatment: sewage treatment discharge pipe, sewage pipe and biological pool corrosion protection engineering agriculture: agricultural irrigation pipe, deep well pipe, drainage pipe network, corrosion resistance is better than steel structure is conducive to the fire resistance and fire prevention of steel pipe.


Product Description

Production Capacity:
Totally 11 factories with 9000 employees.
62 ERW steel pipe production lines
40 hot dipped galvanized steel pipe production lines
31 square and rectangular steel pipe production lines
9 SSAW steel pipe production lines
25 steel-plastic complex steel pipe production lines
12 hot galvanized square/rectangular pipe production lines
3 national accredited laboratory with CNAS Certificates
1 Tianjin government accreditd technology center
SMLS PIPE SURFACE TREATMENT
HOT DIP GALVANIZED
ZINC COATING: 220g/m2 or customized
BLACK PAINTED
(RED, BLUE, GRAY OR OTHER COLORS )
ANTI-RUST OILED
Light oiled or Heavy oiled
BARE PIPES ONLY
It will cover rust more or less after long time stock
PIPE ENDS TREATMENT
THREADED BOTH ENDS ( BS or ASTM standard)
One end with plastic caps, and the other end with coupling
GROOVED ENDS (BS or ASTM standard)
PLAIN ENDS (regular situation)
Add plastic caps or not
BEVEL ENDS WITH PLASTIC CAPS
30 degree bevel suitable to welding
OTHER PROCESS ALL CAN BE DISCUSS!
CARBON STEEL PIPE USAGE


Delivery Steel Pipe: Low pressure liquid / water / gas / oil / line pipe,

Fire sprinkler steel pipe,

Structure Steel Pipe: Construction / building materials steel pipe,

Scaffolding pipe,

Solar structure component steel pipe

Fence post steel pipe

Greenhouse frame steel pipe

Specification
COMMODITY NAME
BLACK SEAMLESS CARBON STEEL PIPE/ TUBE (SMLS TUBE)
MATERIAL GRADE
20#, Gr.b
STANDARD
ASTM A106 ( sch40; SCH80, SCH160),  API 5L GR.B PSL1 
PIPE SURFACE
GALVANIZED, PAINTED (BLACK, RED, GRAY OR OTHERS) , OR ANTI-RUST OILED
PIPE ENDS
PLAIN ENDS / BEVEL ENDS WITH PLASTIC CAPS/ THREADED BOTH ENDS WITH COUPLING AND CAPS/ GROOVED ENDS
CERTIFICATES
ISO 9001 / BSI/ UL / FM / API
TRADE TERMS
FOB/ CFR/ CIF/ EXW/ FCA
PAYMENT TERMS
30%&70% T/T ;  100% LC AT SIGHT (others can be negotiated)
DELIVERY TIME
25-40 DAYS AFTER RECEIVE DEPOSIT OR LC
BRAND
YOUFA  (HOT SALES)
HOT SALES MARKET
Southeast Asia, South Asia, Middle East, Europe, Middle&South America, Africa and Oceania
REGULAR  SIZE OF SEAMLESS STEEL PIPES
SIZE (OUTER DIAMETER)
WALL THICKNESS
LENGTH
schedule 40
schedule 80
schedule 160
17.14MM (3/8")
2.31 MM
3.20 MM
____
6M IN STOCK (OR CUSTOMIZED)
21.34MM ( 1/2")
2.77 MM
3.73 MM
4.78 MM
6M IN STOCK (OR CUSTOMIZED)
26.67MM (3/4")
2.87 MM
3.91 MM
5.56 MM
6M IN STOCK (OR CUSTOMIZED)
33.4MM (1")
3.38 MM
4.55 MM
6.35 MM
6M IN STOCK (OR CUSTOMIZED)
42.16MM(1 1/4")
3.56 MM
4.85 MM
6.35 MM
6M IN STOCK (OR CUSTOMIZED)
48.26MM (1 1/2")
3.68 MM
5.08 MM
7.14 MM
6M IN STOCK (OR CUSTOMIZED)
60.32MM (2")
3.91 MM
5.54 MM
8.74 MM
6M IN STOCK (OR CUSTOMIZED)
73.02MM (2 1/2") 
5.16 MM
7.01 MM
9.52 MM
6M IN STOCK (OR CUSTOMIZED)
88.9MM (3")
5.49 MM
7.62 MM
11.12 MM
6M IN STOCK (OR CUSTOMIZED)
114.3MM (4")
6.02 MM
8.56 MM
13.49 MM
6M IN STOCK (OR CUSTOMIZED)
141.3MM (5")
6.55 MM
9.53 MM
15.88 MM
6M IN STOCK (OR CUSTOMIZED)
168.28 MM (6") 
7.11 MM
10.97 MM
18.26 MM
6M IN STOCK (OR CUSTOMIZED)
219.08MM (8")
8.18 MM
12.7 MM
23.01 MM
6M IN STOCK (OR CUSTOMIZED)
273.05MM (10")
9.27 MM
15.09 MM
28.58 MM
6M IN STOCK (OR CUSTOMIZED)
323.85MM (12")
10.31 MM
17.48 MM
33.32 MM
6M IN STOCK (OR CUSTOMIZED)
355.6MM (14")
11.13 MM
19.05 MM

6M IN STOCK (OR CUSTOMIZED)
406.4MM (16")
12.70 MM
21.44 MM

6M IN STOCK (OR CUSTOMIZED)
457.2MM (18")
14.27 MM
23.82 MM

6M IN STOCK (OR CUSTOMIZED)
508 MM (20")
15.09 MM
26.19 MM

6M IN STOCK (OR CUSTOMIZED)
609.6MM (24")
17.48 MM
30.96 MM

6M IN STOCK (OR CUSTOMIZED)
Packing & Delivery

PACKING AND DELIVERY: -- Round hollow section pipe
1. OD 219mm and below In hexagonal seaworthy bundles packed by steel strips, With two nylon slings for each bundles
2. above OD 219mm in bulk or according to custom opinion
3. 25 tons/container and 5 tons/size for a trial order;
4. For 20" container the max length is 5.8m;
5. For 40" container the max length is 11.8m.
Company Profile
00:0000:45

Cangzhou Steel Pipe Group (CSPG) Co., Ltd

Cangzhou Steel Pipe Group (CSPG) Co., Ltd. is a large-sized, key metallurgic enterprise of Hebei Province in North China, whose history dates back to 1994. CSPG currently em/paces six member companies with products varying from SSAW, LSAW, ERW, seamless steel pipes to 3PE pipes, galvanized pipes, casing pipes, etc. A Joint-stock corporation, CSPG occupies an area of 600,000 square meters with a total asset of $530 million.

GLOBAL EXHIBITION AND CUSTOMERS VISIT EVER YEAR
FAQ
1. ISO, BSI, FPC, UL system.

2. Price: Reasonable.

3. TUV, API, BV audited company.

4. Experience: 20 years focus on quality.

5. Strength: The company that can produce 10 million tons welded pipe exclusively in the world. More than 12,600,000 tons and 190,000 tons (Annual production and export volume)

6. Quality: Reliable and World certified. We have two national CNAS certified laboratories, and cooperated with many big steel plate factories and retesting of raw materials.

7. Delivery: Own factory in TianJin! We are near Tianjin port, also have own transport fleet, have the most convenient transport and prompt delivery.

8. Shipment of goods: More than 78 countries worldwide until now.

9. Service: Friendly and Responsible, no matter before or after cooperation.

10. Choose Youfa is equal to Choose Top Guarantee!

Welcome to contact us to make a further discussion!





Specialized in the production of straight welded pipe spiral pipe galvanized pipe 3PE/3PP/FBE/TPEP internal and external epoxy powder internal and external epoxy resin cement mortar two cloth three oil buried pipeline IPN8710 non-toxic drinking water internal and external plastic coated lining plastic and other anti-corrosion pipe fittings for oil and gas pipeline water conservancy projects



Executive standard :DIN30670 DIN30678 CSA Z245 AFNOR nf49-710/711 NACE rp0394/0490 AWWAC 210/C213GB/T9711 API 5L ISO 3183Material: Q235B/Q355BGR A GR B x42-x80 l245-l555

 

Business scope: 21.3mm-3620mmLSAW submerged arc welded pipe 325-2020mmERW straight welded pipe 6mm-711mmSMLS seamless tube 10-1120mmSSAW spiral steel tube 219-3620mmDemand for quality suppliers and partners



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