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[China]
Trade Verify
Address: Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
Contact name:Richard SHEN
TORICH INTERNATIONAL LIMITED |
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Verified Suppliers
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Raw Material:
Round Steel Billet from Bao Steel
with grade SAE1008 SAE1010 SAE1018 SAE1020 SAE1026 etc
Production:
Hot Piercing→Cold Drawing → Sizing to final dimension
Deliver condition:
1. A.W.H.R. "as welded" from hot-rolled steel
2. A.W.C.R. "as welded" from cold-rolled steel
3. S.D.C.R. "sink-drawn", cold-rolled steel
5. M.D. mandrel drawn
6. S.S.I.D. special smooth inside diameter
Standard | ASTM A519 |
Key Word | Seamless High Precision Steel Tube |
Material | SAE1008 SAE1010 SAE1018 SAE1020 SAE1026 etc |
Size | OD: 6-350mm; WT: 1-50mm; Length: max12000mm |
Manufacture | Seamless Cold Drawn And Cold Rolling |
Application | For Machinery, Mechanical Engineering |
Delivery Condition | A.W.H.R. A.W.C.R. S.D.C.R. M.D. S.S.I.D. |
Chemical Requirement
Steel Grade | C, max | Mn | P, max | S, max | Si, max | Cr, min | Mo |
1008 | 0.10 | 0.30-0.50 | 0.040 | 0.050 | |||
1010 | 0.08-0.13 | 0.30-0.60 | 0.040 | 0.050 |
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1018 | 0.15-0.20 | 0.60-0.90 | 0.040 | 0.050 | |||
1020 | 0.18-0.23 | 0.30-0.60 | 0.040 | 0.050 | |||
1026 | 0.22-0.28 | 0.60-0.90 | 0.040 | 0.050 | |||
1035 | 0.32-0.38 | 0.60-0.90 | 0.040 | 0.050 | |||
1045 | 0.43-0.50 | 0.60-0.90 | 0.040 | 0.050 | |||
4130 | 0.28-0.33 | 0.40-0.60 | 0.040 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
4140 | 0.38-0.43 | 0.75-1.00 | 0.040 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
Mechanical Property
Grade | Condition | Ultimat Strength | Yeild Strength | Elongation | Rockwell Hardness | ||
ksi | Mpa | ksi | Mpa | % | B Scale | ||
1020 | HR | 50 | 345 | 32 | 221 | 25 | 55 |
CW | 70 | 483 | 60 | 414 | 5 | 75 | |
SR | 65 | 448 | 50 | 345 | 10 | 72 | |
A | 48 | 331 | 28 | 193 | 30 | 50 | |
N | 55 | 379 | 34 | 234 | 22 | 60 | |
1025 | HR | 55 | 379 | 35 | 241 | 25 | 60 |
CW | 75 | 517 | 65 | 448 | 5 | 80 | |
SR | 70 | 483 | 55 | 379 | 8 | 75 | |
A | 53 | 365 | 30 | 207 | 25 | 57 | |
N | 55 | 379 | 36 | 248 | 22 | 60 | |
4130 | HR | 90 | 621 | 70 | 483 | 20 | 100 |
SR | 105 | 724 | 85 | 586 | 10 | 100 | |
A | 75 | 517 | 55 | 379 | 30 | 85 | |
N | 90 | 621 | 60 | 414 | 20 | 100 | |
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.
Packing & Delivery
Packing Details : In bundles or in wooden boxes packaging
Our Certifications
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.
