TORICH is an enterprise that has been producing precision steel pipes and steel pipe processing for over 20 years, with a factory area of approximately 20000 square meters
Categories | Structural Steel Tube |
---|---|
Place of Origin: | Zhejiang, China (Mainland) |
Certification: | ISO9001, ISO14001, TS16949 |
Price: | negotiable |
MOQ: | negotiable |
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 |
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:
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 |
A: We are factory.
A: It is according to quantity. And usually is 35-50 days after receiving 30% T/T in advance.
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.
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