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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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Product Name | Cold Drawn 37Mn 34Mn2V 30CrMo 35CrMo Seamless Steel Tubes for Gas
Cylinder |
Brand | TORICH |
Standard | GB/T18248 |
Grade | 37Mn 34Mn2V 30CrMo 35CrMo |
Size | OD: 60-273 WT:3.5-9 L:4-12m |
Technic | Cold Drawn/Hot Rolled |
Condition | Normalizing, Annealed/Hot Rolled |
Used | Gas Cylinder |
Permissible Variation of OD and WT
Type | OD | WT |
Hot Rolled | ±1.0 | +15 -10 |
Cold Drawn | ±0.75 | +12.5 -10 |
Chemical Requirement
Grade | C | Si | Mn | P & S | Cr | Mo | V | Ni | Cu |
37Mn | 0.34-0.40 | 0.10-0.30 | 1.35-1.65 | ≤0.030 | ≤0.30 | - | - | ≤0.30 | ≤0.20 |
34Mn2V | 0.30-0.37 | 0.17-0.37 | 1.40-1.75 | ≤0.030 | ≤0.30 | - | 0.07-0.12 | ≤0.30 | ≤0.20 |
30CrMo | 0.26-0.34 | 0.17-0.37 | 0.40-0.70 | ≤0.030 | 0.80-1.10 | 0.15-0.25 | - | ≤0.30 | ≤0.20 |
35CrMo | 0.32-0.40 | 0.17-0.37 | 0.40-0.70 | ≤0.030 | 0.80-1.10 | 0.15-0.25 | - | ≤0.30 | ≤0.20 |
Test:
Chemical Test: GB/T222,GB/T223,GB/T4336
Tension Test: GB/T228
Impact Test: GB/T229
Hydraulic Test: GB/T241
Eddy Current Test: GB/T7735
Magnetic Flux Leakage Testing: GB/T12606
Ultrasonic Test: GB/T5777
Macroscopic Examination: GB/T226, GB/T1979
Non-metallic Inclusion: GB/T10561
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.
Products Show
TorichInternational Co.,Ltd is a professional manufacturer and exporter of steel pipes
materials. It is an international marketing and sales company
specialized in steel tubes.
Our main products:Seamless Steel Tubes with Carbon and Alloy Steel
Grade, Welded Precision Steel Tubes,DOM Steel Tubes, Seamless &
Welded Stainless Steel Tubes with Nickel and Alloy Steel Tube.
Our factory was established since 1997, with the name of Haiyan
SanxinSteel Pipe Co., Ltd. The factories` technicians are of great
engineering experience in steel pipe industry for more than 20
years, who are in great command of production technology for Cold
Drawing and Cold Rolling, as well as heat treatment and inspection.
So we have strong technician team and manufacturing capability.
Seamless Seel Tubes are packed in wooden boxes or hexagonal bundles in seaworthy packing.
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
