Haiyan Sanxin Steel Tube Co., Ltd.

 

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16mm - 30mm Structural Steel Tubing , Grade 25 Hot / Cold Finished Seamless Tube

16mm - 30mm Structural Steel Tubing , Grade 25 Hot / Cold Finished Seamless Tube

16mm - 30mm Structural Steel Tubing , Grade 25 Hot / Cold Finished Seamless Tube
16mm - 30mm Structural Steel Tubing , Grade 25 Hot / Cold Finished Seamless Tube

Large Image :  16mm - 30mm Structural Steel Tubing , Grade 25 Hot / Cold Finished Seamless Tube Get Best Price

Product Details:

Place of Origin: Zhejiang, China (Mainland)
Certification: ISO9001, ISO14001, TS16949

Payment & Shipping Terms:

Minimum Order Quantity: negotiable
Price: negotiable
Detailed Product Description
Standard: GB, GB/T 8162 Standard2: GB/T 8162-1999
Grade Group: 10#-45#, Cr-Mo Alloy, Q195-Q345 Grade: 20#, 45#, 30CrMo, Q345
Thickness: 0.4 - 30 Mm Section Shape: Round
Outer Diameter(Round): 5 - 400 Mm Secondary Or Not: Non-secondary
Application: Structure Pipe Technique: Cold Drawn
Surface Treatment: Other Special Pipe: Structural Steel Tube
Alloy Or Not: Non-alloy Product Name: Structural Steel Tube
OD: 5-400mm WT: 0.4-30mm
Length: 1-12m Material: #25
Shape: Round Shape
High Light:

hollow structural steel pipe

,

hot dip galvanized steel pipe

 
 

16mm - 30mm Steel Grade 25 Hot Rolled / Cold Drawn Seamless Tube Structural Steel Pipes

 

 

GB/T8162 Structural Seamless Steel Tube with Steel Grade 20 45 Q345 20Cr 40Cr 20CrMo 30-35CrMo 42CrM
Heat Treatment: Hot Rolling & Cold Drawn
Tolerance of the OD &WT:
 

OD Tolerance:

Production Method
OD Tolerance
Hot Rolling(Extrusion)
±1% or ±0.50mm
Cold Drawn(Cold Rolled)
±1% or ±0.30mm

 

Tolerance for wall thickness:


1.Wall thickness tolerance of Hot Rolling steel tube:

Production Method
OD (DN)
WT/OD
Tolerance
 
Extruded tube
≤102
/
±12.5% or ±0.40mm
>102
≤0.05
±15% or ±0.40mm
>0.05-0.10
±12.5% or ±0.40mm
>0.10
+12.5%
-10%
Heat expanding steel tube
/
±15%

 

2.Wall thickness tolerance of Cold Drawn(Cold Rolled) steel tube:

 

Production Method
WT
Tolerance
 
Cold Drawn(Cold Rolled) steel tube
≤3
+15%/-10% or ±0.40mm
>3
+12.5%
-10%

 

 

Mechanical Property:

16mm - 30mm Structural Steel Tubing , Grade 25 Hot / Cold Finished Seamless Tube 0

Bending tolerance:
WT≤15mm, Bending≤1.5mm/m
WT>15mm~30mm, Bending≤2.0mm/m
WT>30mm/OD≥351mm, Bending≤3.0mm/m


Ovality and Wall unevenness:
The ovality and wall unevenness should be no more than 80% of the OD and wall thickness.(Or according to customer’s request)

 

Test:
Bending test
Hardness test
Impact test
Squeezing test
Non-destructive test

Product Name
Steel Grade 25 Structural Steel Tubing Hot Rolled / Cold Drawn 16mm - 30mm
Material
alloy steel
Section Shape
Round
Standard
GB/T8162
Grade
20 45 Q345 20Cr 40Cr 20CrMo 30-35CrMo 42CrM
Brade
Torich
 

 

Application
The structural steel tubes used for liquid transportation

 

16mm - 30mm Structural Steel Tubing , Grade 25 Hot / Cold Finished Seamless Tube 1
 
FAQ

Q: Are you trading company or manufacturer ?

A: We are factory.

Q: How long is your delivery time ?

A: It is according to quantity. And usually is 35-50 days after receiving 30% T/T in advance.

Q: How to get the sample of structural steel tube ?

A: 

1.You are requested to pay for sample charges and courier charges from China to your country; and the free sample is according the product like size, steel grade and quantity, please consult our sales for details
2.Sample charges will be refunded when order is placed.

Q: What is your terms of payment ?

A: 

1.T/T: 30% deposit in advance, the balance 70% paid before shipment

2.30% down payment, the balance 70% paid against L/C at sight
3.Upon negotiation

Contact Details
Haiyan Sanxin Steel Tube Co., Ltd.

Contact Person: group

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