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| Categories | Alloy Steel Pipe |
|---|---|
| Brand Name: | TORICH |
| Model Number: | ASTM A519 |
| Certification: | ISO |
| Place of Origin: | Zhejiang China |
| MOQ: | 5 Tons |
| Price: | negotiable |
| Payment Terms: | L/C, D/A, T/T, D/P, Western Union, MoneyGram |
| Supply Ability: | 500 Tons per Month |
| Delivery Time: | 4-8 Weeks |
| Packaging Details: | Steel Tubes are packed in wooden boxes or seaworthy packages |
| Technics: | Cold Drawn |
| Length: | 1000-1200 mm |
| OD: | 6 - 350 mm |
| W T: | 1 - 50 mm |
| End Protector: | Plain |
| Surface: | Oiled |
| Company Info. |
| TORICH INTERNATIONAL LIMITED |
| Verified Supplier |
| View Contact Details |
| Product List |
Product Description
| Standard | ASTM A519 |
| Matrial | AISI4130 AISI4140 |
| Size | OD: 6-350mm WT: 1-50mm Length: 1-12m |
| Manufacture | Tubes are made by seamless process. At the manufacturer's option, tubing may be furnished either hot finished or cold finished. |
| Condition Sizing Methods | 1. Hot-Finished Mechanical Tubing 2. Cold-Worked Mechanical Tubing 3. Rough -Turned Mechanical Tubing 4. Ground Mechanical Tubing |
| Thermal Treatment: | 1. A-Annealed 2. N-Normalized 3. QT-Quenched and Tempered 4. SR-Stress relieved or Finish Anneal The tubes shall be pickled free of scale,. When bright annealing is used, pickling is not necessary. |
| Workmanship, Finish, and Appeaerance | The tubing shall be free of laps, cracks, seams, and other defects
as is consistent with good commercial practice. The surface finish will be compatible with the condition to which it is ordered. |
Grade | C | Si | Mn | P≤ | S≤ | Cr | Mo |
4130 | 0.28-0.33 | 0.15-0.35 | 0.40-0.60 | 0.040 | 0.040 | 0.80-1.10 | 0.15-0.25 |
4140 | 0.33-0.43 | 0.15-0.35 | 0.75-1.00 | 0.040 | 0.040 | 0.80-1.10 | 0.15-0.25 |
Mechanical Properties
Grade | Condition | Ultimat Strength ksi MPa | Yeild Strength ksi MPa | Elongation % | Rockwell Hardness B Scale |
4130 | HR | 90 621 | 70 483 | 20 | 89 |
SR | 105 724 | 85 586 | 10 | 95 | |
A | 75 517 | 55 379 | 30 | 81 | |
N | 90 621 | 60 414 | 20 | 89 | |
4040 | HR | 120 855 | 90 310 | 15 | 100 |
SR | 120 855 | 100 689 | 10 | 100 | |
A | 80 552 | 60 414 | 25 | 85 | |
N | 120 855 | 90 621 | 20 | 100 |
Production Show
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.
If you have another question, pls feel free to contact us
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