Application and process performance of carbon steel tube heat Treatment

- Nov 25, 2020-

Application and process performance of carbon steel tube heat Treatment

The standard provisions in piping, mechanical properties, physical properties, the use of performance and process performance indicators, corresponding to the different steel grades. Performance metrics vary greatly. Mechanical properties: Tensile strength, yield intensity, elongation, hardness, impact energy; physical properties mainly refer to the grain size.


Includes use and process performance: anti-crush Test, flattening, flaring test, anti-H2S and CO2 corrosion test resistance.


What’s Burning? Name: Burn-in definition: The sintering temperature is too high or the sintering time is longer, the performance of the final product deterioration. Application areas: Mechanical Engineering (2) Powder Metallurgy (two people), powder metallurgy process and equipment over-burning, over-burning products over the firing temperature is called combustion. High sintering temperatures and sintering time are too long (or) resulting in a deterioration in the final performance of the Sintered product. Product combustion easy deformation, size requirements, blank or glaze and so on. Porcelain body fluid (glass phase) increases, grain boundaries become wider, prone to abnormal growth of crystals, crystal uneven, strength and density decreased. If the heating temperature close to the melting point, so that the grain boundary oxidation or even melting, resulting in the ability of metal plastic deformation completely disappear, if incineration will cancel the blank. Led combustion is due to the sintering temperature is too high, holding time too long



Product Description


BLACK STEEL PIPE


CHS
(Circle hollow section)
RHS
(Rectangular hollow section)
SHS
(Square hollow section)
Technique:
Electrical Resistance Weld (ERW)
Specifications:
OD: 20-219mm
WT :1.5-8.0mm
Length: 1-12m
SIZE: 20*30-300*650mm
WT: 1.5-18.0mm
Length: 1-12m
SIZE:20*20-400*400mm
wt:1.5-18.0mm
Length: 1-12m
Standard:
BS EN 39, BS 1387, 
BS EN 10219,
API 5L, ASTM A53, ASTM A500, ASTM A795, ISO65, 
ANSI C80,
DIN2440,
JIS G3444,
GB/T3091
BS EN 10219
ASTM A500, 
JIS G3466,
GB/T6728
BS EN 10219
ASTM A500, 
JIS G3466,
GB/T6728
Material:
S195, S235, S345/
GRA, GRB/
STK400/
Q195, Q235, Q345,
Surface:
1. hot dipped galvanized (Zinc coating: 200-600g/m2 )
2. oiled with PVC wrapped
3. varnished / painted in black or red or other color
4. Anticorrosive coating: 3PE / 3PP / FBE / Epoxy
Pipe Ends:
bevelled ends, or 
threaded ends, or
grooved ends, or 
plain ends
plain ends
plain ends
Packing: 
outer diameter 273mm and above: piece by piece
outer diameter 219mm and below: in hexagonal seaworthy bundles packed by steel strips
or small sizes nested into big sizes
Trade terms: 
FOB/ CIF/ CFR / FCA / EXW
Payment terms: 
T/T or L/C
Delivery time: 
15-45 days (based on quantity) after receiving advanced payment by T/T or LC .
Main market:
Southeast Asia, South Asia, Middle East, Europe, Middle&South Americ, Africa and Oceania
Detailed Images

Threaded ends:

1. with plastic caps on two ends.
2. with plastic cap and coupling on each end.


Beveled ends:

1.without caps
2.with caps on two ends


Grooved ends


Strict Quality Inspection:

Packing & Delivery
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Our Service

Before-sale service:

We can offer one free sample length 20 cm with freight collected, if you want to buy our products and take our price. 


After-sale service:

Quality/Quantity Claims: The Buyer is entitled to make both quality and quantity claim in writing against the Seller within 90 days after arrival at the port of destination. All claims must be supported by survey reports of recognized first class surveyors within the above mentioned stipulated time frame. 


Our Company


Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.

No.92 JieFang East Road ,Cangzhou City, Hebei,P.R.China.

CSPG  has more than eighteen years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation. 


We are a direct-selling manufacturer specializing in the research and development of spiral steel pipes, steel spiral pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.


Who We are?

(1) China Top 500 Enterprises Industry Leading Brands
(2) 15 years experience in manufacturing and exporting steel products since 2000.
(3) For 10 Consecutive Years of The First Production and Sales
(4) Key Project Supplier---Three Gorges Project, the Capital International Airport, Shanghai Pudong International Airport, the 2008 Olympic Games venues , the Word Expo 2010, etc.


What We own?
8000 employees.
59 ERW steel pipe production lines

36 hot-dipped galvanized steel pipe production lines

24 square and rectangular steel pipe production lines

18 SSAW steel pipe production lines
16 steel-plastic complex steel pipe production lines

9 hot-dipped galvanized square and rectangular steel pipe production lines
3 national accredited laboratory
1 Tianjin government accreditd business technology center

What We Produce?
1-Electrical resistance weld pipe
2-Hot-dipped galvanized steel pipe (Which can meet En39 Standard)
3-Spiral welded pipe
4-Oil casing pipe
5-Square/rectangular steel pipe
6-Plastic inner-lined galvanized steel pipe
7-Highway guardrail plate




Our company covers 300 square meters. We have 12 hot galvanized steel pipe production lines, 5 ERW steel pipe production lines and 6 steel-plastic compound pipe production lines. We do the hydrostatic test for all the pipes from 1/2”-8”.

Production line:

Product application:

Our Products are widely used in tap water engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, urban construction etc. Can be used as low pressure fluid pipe, oil & gas transportion pipe, steel structre, beam etc. Our annealed steel pipe are wildely used in steel furnitures, bicycle, sports equipments, fitness equioments etc

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Exhibitions and booths:

Large amount of stocks:

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1. ERW Steel Pipe

Size: OD 1/2”-10”
Thickness: 1.5mm-10mm
Length:6m

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2.ERW Hot-dipped Galvanized Steel Pipe

Size: OD 1/2”-10”
Thickness: 1.5mm-10mm
Length:6m
Zine Coating : 30-40μm

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3. Square /Rectangular Steel Pipe 
Rectangular Steel Pipe 

Square size: 20*20mm-200-200mm

Rectangular size: 20*40mm-150*250mm

Thickness: 1.5mm-12mm
Length:6m/12m

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4. SSAW Steel Pipe

Size: OD 8”-80”
Thickness: 5mm-35mm
Length:6m/12m

FAQ


1.Q:Are you a factory or trading company?
We are factory and China Top 500 Enterprise

2.Q:Where is your factory located? How can I visit there?
We locate in Tianjin, China, 30 minutes from Beijing by train.

3.Q:Can I get some samples?
Yes,free samples can be provided

4.Q:What do your factory do regarding quality control?
From material to produts, we inspect each process to keep good quality.
And BV/SGS inspection can be accepted.

5.Q:How about MOQ ?
We have stock of common sizes at hand, so one ton is accepted.

6.Q:How about payment ?
Both T/T and L/C can be accepted.

7.Q: How long does your warranty?
We can assured the quality within 90 days after receiving the cargoes.