Specifications
Brand Name :
New Era
Model Number :
Gost 8733 / Gost 8734
Certification :
ISO9001
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
Product Name :
GOST 8645-68 Steel Pipe
Delivery Condition :
Cold Worked, Annealed
OD Size :
6-168mm
WT Size :
1-20mm
Steel Material :
Steel 10, 20, 35, 45, 10Mn2,
Process :
Cold Drawn,welded
Application :
Structural tubes,Mechanical tubing
Standard: :
GOST8645-68 GOST 8639
Description

GOST 8645-68 (rectangular, seamless cold-deformed pipes).

Materials:Steel 35,Steel45,Steel10,Steel 20,etc

Sizes of square pipes have to confirm the values indicated in the table below:

Size A, mm Size B, mm Wall thickness s, mm Section square, cm2 Weight of1 mpipe, kg, Inertia moment, cm4= Resistance moment, cm3=
Ix Iy Wx Wy
90 60 5 13.57 10.65 75.04 142.8 25.01 31.75
120 80 8 28.34 22.25 268.4 514.5 67.11 85.76

Steel density 7/85 g/cm3

Mechanical composition
Steel grade Tensile strength, N/mm2 (min) Yield strength, N/mm2 (min) Elongation, % (min) Hardness HB (≤)
10 333 206 26 137
20 412 245 23 156
15Cr5Mo 392 216 22 170
12Cr8 392 216 22 170
10Mn2 412 245 21 197

Pipe static characteristic is calculated for R=1,5

Pipes length & limit deviations should correspond to GOST 8639.

Quality Control:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing or Cold Rolling, On line inspection
5. Heat Treatment:+SR, +A, +N
6. Straightening/Cutting to specified length/Finished Measuring Inspection
7. Quality Testing in own lab with Tensile Strength, Yield Strength, Elongation, Hardness, Straightness, etc.
8. Packing and Stocking.


100% Eddy Current Testing.
100% Size Tolerance Checking.
100% Tube surface checking to avoid surface defects.

Cold Deformed Seamless Rectangular Steel Tubing

FAQ:


1. Can you provide a sample to check the quality?
We can provide free sample with same or similar sizes for you to check tube quality.

You need to in charge of Express costs.


2. How about your production capacity?
3000 tons/Month.


3. What are your terms of payment?
30%TT in advance, Balance to be paid before shipment.


4. Where is your factory?
Jiaxing city, 2 hours away from Shanghai.


5. How can I get the quotation A.S.A.P?
Please send us an inquiry with full details as following,quotation will sent to you A.S.A.P:
1). Tube Standard
2). Steel Grade

3). Tube Size and Size Tolerance
4). Tube length

5). Quantity
6). If any special requirements


6. How about the minimum order quantity?
Normally for one size above 1 ton.


Welcome to contact us! Thanks.

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Cold Deformed Seamless Rectangular Steel Tubing

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Brand Name :
New Era
Model Number :
Gost 8733 / Gost 8734
Certification :
ISO9001
Place of Origin :
China
MOQ :
1 tons
Price :
Negotiation
Contact Supplier
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Cold Deformed Seamless Rectangular Steel Tubing
Cold Deformed Seamless Rectangular Steel Tubing

NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD

Verified Supplier
7 Years
Since 1988
Business Type :
Manufacturer
Total Annual :
100000000-15000000
Employee Number :
150~200
Certification Level :
Verified Supplier
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