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Cold Drawn Precision Steel Tube Seamless 2 - 12m Length With GB/T3639

Minimum Order Quantity : 5 tons Price : 900-1200 USD/ton
Packaging Details : In plywood case, In wooden box. Delivery Time : 30-45 days after order confirmed
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram Supply Ability : 60000 Ton per Year
Place of Origin: China Brand Name: Torich
Certification: ISO 9001 ISO14001 TS16949 Model Number: GB/T3639

Detail Information

Characteristic: Precision Steel Tubes Material: 1010, 1020 Etc
Production Method: Seamless Cold/hot Finished Package: In Bundles Or As Per Requests
End Protector: Plain / Beveled Length: 2-12m
Type: Cold Drawn Or Cold Rolled MTC: EN10204.3.1
High Light:

precision steel pipe

,

precision seamless pipe

Product Description

Cold Drawn Precision Steel Tube Seamless 2 - 12m Length With GB/T3639

 

Steel Grade/Steel Material:10#, 20#, 45#, 16Mn, SAE1010, SAE1020, SAE1045, SKTM11, ST35, ST52 etc


Steel pipe standard:GB8713, GB3639, DIN2391, EN10305-1, EN10305-4, JIS-G3445, ASTM A519, etc
 
Size:OD:10.00—110.00mm, WT:1.00—8.00mm, Length: 5.8m, 6m,9m,or as required.

 

Technique: 1) Cold Rolled 2) Cold Drawn

 

Characteristic: Good concentricity, Good OD and ID tolerance, High Precision, Stable quality, Smooth Roughness

 

Application: 1) shock absorber for motorcycle and automobile, 2) hydraulic gas cylinder

                      3) precision machine precision pipe part, 4) other auto pipe parts

 

Production Processs:
RAW MATERIAL

INCOMING INSPECTION

STORAGE → CUTTING→HAMMERING → PICKING LUBRICATION → CLEANING → PHOSPHORI CLEAN

ENDS CUTTING←STRAIGHTENING←HEAT TREATMENT↔MIDDLLE CHECK↔ COLD DRAWING ← LUBRICATING

FINAL INSPECTION→BUNDING→STORAGE

 

Steel grade Minimum values for the delivery condition  
+CC +LCC +SR +Ad +N
steel name steel number Rm MPa A % Rm MPa A % Rm Mpa ReH MPa A % Rm MPa A % Rm MPa ReHC MPa A %
E155 1.0033 400 6 350 10 350 245 18 260 28 270 to 410 155 28
E195 1.0034 420 6 370 10 370 260 18 290 28 300 to 440 195 28
E235 1.0908 490 6 440 10 440 325 14 315 25 340 to 480 235 25
E275 1.0225 560 5 510 8 510 375 12 390 21 410 to 550 275 21
E355 1.0580 640 4 590 6 590 435 10 450 22 490 to 630 355 22
a. Rm: tensile strength ; ReH: upper yield strength (but see 11.1); A: elongation. For symbols for the delivery condition see Table 1.
b. 1 Mpa = 1 N/mm2
c. Depending on the degree of cold work in the finishing pass the yield strength may nearly be as high as the tensile strengths. For calculation purposes the following relations are recommended:
—— For delivery condition +C: ReH ≥0.8 Rm
—— For delivery condition +LC: ReH ≥0.7 Rm
d. For calculation purposes the following relations is recommended: ReH ≥0.5 Rm
e. For tubes with outside diameter ≤ 30 mm and wall thickness≤ 3mm, the ReH minimum values are 10 Mpa lower than the values given in this Table.

 
Production of Precision Steel Tube:
Precision Steel TubePrecision Steel Tube
 
Eddy Current Test and Ultrasonic Test:
Cold Drawn Precision Steel Tube Seamless 2 - 12m Length With GB/T3639 2
 
Packing and delivery:
Cold Drawn Precision Steel Tube Seamless 2 - 12m Length With GB/T3639 3

 

Our Certifications

DIN2391/ EN10305-1 Cold Drawn Galvanization High Precision Steel Tube NBK for Hydraulic System 4

 

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 and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects

 

FAQ

Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider


Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.


Q: Do you provide samples of carbon seamless steel tube ? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.


Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

 

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+8613736164628
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