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Product Data

Valve Gate: The core parts of flat gate valves used in the petrochemical industry require high pressure, wear resistance, corrosion prevention against H2S and CO2, especially wellhead and Christmas tree valves have higher requirements. 

Product parameters

As shown below, here are some tables helping you know more about basic product data: 


1. Common base material and chemical composition

Common base material and chemical composition(wt.%)

Mat

Type

CSiMnPSCrMoNiCuNbAlTiCoFe
41300.28-0.330.15-0.350.4-0.6≤0.025≤0.0250.8-1.10.15-0.25≤0.03≤0.03



Bal
41400.38-0.450.15-0.350.75-1.0≤0.025≤0.0250.8-1.10.15-0.25





Bal
4100.08-0.15≤1.0≤1.0≤0.025≤0.02511.5-13.5
≤0.75




Bal
410SS≤0.08≤1.0≤1.0≤0.025≤0.02511.5-13.5
≤0.6




Bal
F6NM≤0.05≤0.60.5-1.0≤0.025≤0.02511.5-14.00.5-1.03.5-5.5




Bal
F51≤0.03≤1.0≤2≤0.025≤0.02521-232.5-3.54.5-6.5




Bal
17-4PH≤0.07≤1≤1≤0.025≤0.02515.0-17.5
3.0-5.03.0-5.00.15-0.45


Bal
Inconel625≤0.1≤0.5≤0.5≤0.015≤0.01520-238-10Bal
3.15-4.15≤0.4≤0.4≤1≤5
Inconel718≤0.08≤0.35≤0.35≤0.015≤0.01517-212.8-3.350-55≤0.34.75-5.50.2-0.80.65-1.15≤1
Bal

 

2. Specifications and Models

Specificationsproduct levelsManufacturing precision
inchmmPSL
1-13/1646

PSL1

      

PSL2

      

PSL3

       

PSL3G

     

PSL4

        

Parallelism:≤0.02

 

  

Flatness:≤2 light bands


 

Roughness:≤0.1


2-1/1652
2-9/1665
3-1/1678
3-1/880
4-1/16103
4-1/8105
5-1/16128
5-1/8130
6-1/16150
7-1/16180


3. Material property requirements

Material property requirements
Material designation Yield strengthTensile strengthElongationReduction in area
0.2min,psi) b min,psi) 4 gauge 2 inches,%min)(ψ,%min) 
36K 360007000021 No requirement
45K 45000700001932
60K 60000850001835
75K 75000950001835


4. Material class requirements

  Material requirements
    Material classCorresponding corrosion 

H2S partial pressure

(psi) 

CO2 partial pressure

 (psi) 

General material
AA General serviceNo corrosion<0.05 <7 4130、4140
BBGeneral serviceSlight corrosion<0.05 7-30410
CCGeneral serviceModerate to high corrosion<0.05 >30 410
DDSour service No corrosion>0.05<7 4130、4140
EESour service Slight corrosion>0.057-30410
FFSour service Moderate to high corrosion>0.05>30 410
HHSour service Serious corrosion>0.05>30 625、718


5. Pressure class

Pressure class
GradePSIMPa
2M200015
3M300020
5M500035
10M1000070
15M15000105
20M20000140


6. Temperature rating

Temperature ratings
Temperature classificationOperating range(℃)
MinMax
K-6082
L-4682
N-4660
P-2982
S-1860
T-1882
U-18121
V-18121



CONTACT US
  • Suzhou Kaitianfu Machinery Co., Ltd.
  • Add: Linhu Cailian Industrial Park, Wuzhong District Suzhou City, Jiangsu Prov., China
  • Tel: +86 512 6653 2885
  • Mob: +86 189 9444 4988
  • E-mail: ktf@szktf.com.cn
  • aaron.szktf@gmail.com