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High Pressure Alloy Steel Seamless Pipes SA 210 GR A1 For Boiler CE Approval

Categories Alloy Steel Pipe
Brand Name: Torich
Model Number: SA 210
Certification: CE PED
Place of Origin: China
MOQ: 1000kg
Price: negotiable
Payment Terms: L/C, T/T
Supply Ability: 200 tons per year
Delivery Time: 6-8 weeks
Packaging Details: In bundles in woode box
Application: in most of the chemical industry and high-temperature environments
standard: ASTM B674,STM B619 and so on
grade: W.NR 2.4610 UNS N06455 AWS 052 Alloy C-4
Melting Temperature Range: 1335 ~ 1380 ℃
Material: Hastelloy C-4
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High Pressure Alloy Steel Seamless Pipes SA 210 GR A1 For Boiler CE Approval

High Pressure Seamless Alloy Steel Pipes SA 210 GR A1 for Boiler


Hastelloy C-4 Application:

Hastelloy C-4 has been widely used in most of the chemical industry and high-temperature environments.

Typical fields of application:

● flue gas desulfurization system

● pickling and acid regeneration plant

● production of acetic acid and agrochemicals

● production of titanium dioxide (chloride method)

● electrolytic plating


The corrosion resistance of Hastelloy C-4:

Higher molybdenum and chromium content make Hastelloy C-4 alloy can resist various aggressive chemical media, including reducing media, such as phosphoric acid, hydrochloric acid, sulfuric acid, chlorine, chlorine-containing organic or inorganic media. Due to the high nickel content, Hastelloy C-4 can effectively resist chlorine caused due to stress corrosion cracking, and even hot chloride solution.


Hastelloy C-4 is characterized by:

● In the oxidation and reduction status, for most corrosive medium has excellent corrosion resistance.
In emulsion has excellent resistance to local corrosion.

Standard of Hastelloy C-4: ASTM B674,STM B619 and so on


Hastelloy C-4 grades and standards:

Grades and StandardsMaterial Gradespecifications
chemical compositionPipeSheetBarStripWireForging
SeamlessWelded pipe
France
AFNOR
        
Germany
DIN
VdTÜV
W.Nr.2.4610
NiMo16Cr16Ti
17744
424
17751 17750
424
17752
424
17750424 
United Kingdom
BS EN
         
United States
ASTM
AME
UNS NO6455 B622
SB622
B619/626
SB619/626
B575
SB575
B574
SB574
B575
SB575
 B366
SB366
ISONiMo16Cr16Ti        

Hastelloy C-4 chemical composition:

NiCrFeCMnSiMoTiCoPS
Margin14.5-17.53.0≤0.009≤1≤0.0514.0-17.0≤0.07≤2.0≤0.02≤0.01

Hastelloy C-276 Physical properties:

Density: ρ = 8.6g / cm3

melting temperature range: 1335 ~ 1380 ℃


Temperature
Specific Heat Capacity
J/( kg · K )
coefficient of thermal conductivity
W/mK
resistivity
Ω·m
Elastic Modulus
KN/mm²
expansion coefficient
10-6/K
0406    
2040810.1124211 
93     
10042611.412520710.9
20044813.212620211.9
204     
3004651512719512.5
316     
40047716.712818812.9
427     
50049018.412918113.2
538     
60050220.513217513.6
649     
70051222.613516814
760     
80052224.813815814.5
871     
900   14915.1
982     
1000   13815.9

Hastelloy C-4 ISO-V notch test:

Mean ≥120J / cm² at room temperature

≥120J / cm² -196 ℃


Hastelloy C-4 Heating:

Before the heat treatment and heat treatment process should always be kept clean and pollution-free workpieces.

During the heat treatment can not touch the sulfur, phosphorus, lead and other low melting point metal, otherwise Nicrofer 6616 hMo alloy becomes brittle, should pay attention to remove paint, such as tags, temperature indicating paint, crayons, oil, fuel and other contaminants. Fuel sulfur content as low as possible, the sulfur content of natural gas should be less than 0.1%, heavy oil should be less than 0.5% sulfur content. Electric heating is a better choice, because precise temperature furnace, furnace gas and clean. If the gas furnace gas furnace clean enough, you can choose from.

Furnace gas furnace with a neutral to slightly reducing appropriate, should avoid furnace gas fluctuates between oxidation and reduction, heated by the flame is not burning directly to the workpiece.


Heat treatment:

1. HastelloyC-4 thermal processing temperature range of 1080 ℃ ~ 950 ℃, cooling method for cooling or rapid air cooling.
2. To ensure the best corrosion resistance, thermal processing should be carried out after the heat treatment, the workpiece should be directly added to the warmed heat treatment furnaces.


Hastelloy C-4 Heat Treatment:

1. Hastelloyc-4 solution treatment temperature range 1050 ℃ ~ 1100 ℃.
2. The cooling method is water quenching, the material thickness of less than 1.5mm can also be used to quickly cooled.
3. During the heat treatment, the workpiece must be kept clean.


Hastelloy C-4 descaling:

1. Hastelloyc-4 surface oxide and weld around the slag adhesion stronger than stainless steel, is recommended to use fine grain belt or fine grain grinding wheel.
2. Before using HNO3 / HF mixed acid pickling to blasting or grinding the oxide film break.



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