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Good Durability Alloy Steel Seamless Pipes Round Steel Tubing Excellent Strength

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Good Durability Alloy Steel Seamless Pipes Round Steel Tubing Excellent Strength

Brand Name : New Era

Model Number : GOST8734-75 GB/T8163-2009

Certification : ISO9001,TS16949

Place of Origin : China

MOQ : 1 tons

Price : Negotiation

Payment Terms : T/T

Supply Ability : 3000 tons/month

Delivery Time : 45 days

Packaging Details : Bundles Package, Wooden Box Package

Material : 30ХГСА 30HGSA 30CrMnSiA

Delivery Condition : HR, CW, SR, A, N

OD Size : 6-159mm

WT Size : 1-30mm

Manufacture process : cold drawn;cold rolled;hot rolled

Application : Mechanical Purpose

Product Name : Round Steel Tubing

Advantage : Excellent Strength and Durability

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30ХГСА 30HGSA 30CrMnSiA Alloy Steel tubes steel pipes for oil and gas and geological drill pipes

 

Application:seamless steel tubes for oil and gas and geological drill rods application

                                                                                        30ХГСА 30HGSA 30CrMnSiA

Chemical composition, %

 

C Si Mn Ni S P Cr Cu
0.28 - 0.34 0.9 - 1.2 0.8 – 1.1 Up to 0.3 Up to 0.025 Up to 0.025 0.8 - 1.1 Up to 0.3
 


Temperature of 30HGSA material critical points.

Ac1 = 760 , Ac3(Acm) = 830 , Ar3(Arcm) = 705 , Ar1 = 670 , Mn = 352
 


Mechanical properties, Т=20oС, 30HGSA material.

 

Assortment Size Direction sв sT d5 y KCU Heat treatment
- mm - MPа MPа % % rJ / m2 -
Stick Æ 25   1080 830 10 45 490 tempering 880oC, oil, drawback 540oC, water
Forged pieces     500-750   14      
 

 

Hardness 30HGSA after annealing , HB 10 -1 = 229 МPа
 


Physical properties 30HGSA material.

T E 10- 5 a 10 6 l r C R 10 9
Degree MPа 1/Degree Watt /(m*degree) Kg /m3 J / (kg · degree) Ohm · м
20 2.15   38 7850   210
100 2.11 11.7 38 7830 496  
200 2.03 12.3 37 7800 504  
300 1.96 12.9 37 7760 512  
400 1.84 13.4 36 7730 533  
500 1.73 13.7 34 7700 554  
600 1.64 14 33 7670 584  
700 1.43 14.3 31   622  
800 1.25 12.9 30   693  
T E 10- 5 a 10 6 l r C R 10 9
 


Technological properties of 40X material.

 

Weld ability: limited weld ability
Flocsensitivity: sensitive
Tendency to the temper brittleness: There is such a tendency
 


Designations:

 

Mechanical properties:
sв - Short-term breaking point , [МPа]
sT - Proportional limit (yield strength for residual deformation), [МPа]
d5 - Elongation at the time of abruption , [ % ]
y - Contraction , [ % ]
KCU - Impact strength , [ кJ / m2]
HB - Brinnel hardness , [МPа]
 

 

Physical properties:

 
T - Temperature when given values where received , [Degree]
E - Coefficient of elasticity of the first type , [МPа]
a - Coefficient of temperature (linear) expansion (interval 20o - T ) , [1/Degree]
l - Heat conductivity (heat capacity) , [Watt / (m · degree)]
r - Material density , [kg / m3]
C - Specific heat capacity (interval 20o - T ), [J / (kg · degree)]
R - Resistivity, [ohm · m]
 

 
 

Weld Ability:
 
Without limits - welding is carried without heating and further heat treatment
 
Limited weld ability – Welding is possible at the heating up to 100-120°C and further heat treatment
 

Difficult weld ability - Additional operations are necessary to get good weld joints: heating up to 200-300°C during welding, heat treatment after welding - annealing

 

 
About US:
Good Durability Alloy Steel Seamless Pipes Round Steel Tubing Excellent StrengthGood Durability Alloy Steel Seamless Pipes Round Steel Tubing Excellent Strength
Good Durability Alloy Steel Seamless Pipes Round Steel Tubing Excellent Strength
Good Durability Alloy Steel Seamless Pipes Round Steel Tubing Excellent StrengthGood Durability Alloy Steel Seamless Pipes Round Steel Tubing Excellent Strength
Good Durability Alloy Steel Seamless Pipes Round Steel Tubing Excellent Strength


Product Tags:

seamless alloy steel tube

      

alloy steel seamless tubes

      

alloy round tube

      
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