Polishing Surface TORICH ASTM B861/ASME SB861 Seamless Titanium Alloy Steel Tubes
Standard: GB/T3624, GB/T3625, ASTM B338/ASME SB338, ASTM B861/ASME SB861, DIN17861, ASTM A370
Size range: OD: 5-168mm
WT: 0.2-5.2mm
Length: 15m max
Material: Gr1, Gr2, Gr7, Gr9, Gr12, Gr16
Usage: Condenser and Heater-Exchange
Chemical Composition%
| Grade | N max | C max | H max | Fe max | O max | Residual | Al | V | Pd | Mo | Cr | Si max | S max | Mn max | Cu | Oth ers | Ni | Ti |
| Each max | Total max |
| Gr.1 | 0.03 | 0.08 | 0.015 | 0.20 | 0.18 | 0.1 | 0.4 | - | - | - | - | - | - | - | - | - | - | - | balance |
| Gr.2 | 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | 0.1 | 0.4 | - | - | - | - | - | - | - | - | - | - | - | balance |
| Gr.3 | 0.05 | 0.08 | 0.015 | 0.30 | 0.35 | 0.1 | 0.4 | - | - | - | - | - | - | - | - | - | - | - | balance |
| Gr.7 | 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | 0.1 | 0.4 | - | - | 0.12-0.25 | - | - | - | - | - | - | - | - | balance |
| Gr.9 | 0.03 | 0.08 | 0.015 | 0.25 | 0.15 | 0.1 | 0.4 | 2.5-3.5 | 2.0-3.0 | - | - | - | - | - | - | - | - | - | balance |
| Gr.12 | 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | 0.1 | 0.4 | - | - | - | 0.2-0.4 | - | - | - | - | - | - | 0.6-0.9 | balance |
| Gr.16 | 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | 0.1 | 0.4 | - | - | 0.04-0.08 | - | - | - | - | - | - | - | 0.6-0.9 | balance |
Mechanical Property
| Grade | TS(Mpa) | YS(Mpa) | E(%), min |
| Gr.1 | ≥240 | 138-310 | 24 |
| Gr.2 | ≥345 | 275-450 | 20 |
| Gr.3 | ≥450 | 380-550 | 18 |
| Gr.7 | ≥345 | 275-450 | 20 |
| Gr.9 | ≥620 | ≥483 | 15 |
| Gr.12 | ≥483 | ≥345 | 18 |
| Gr.16 | ≥345 | 275-450 | 20 |
Characteristic:
Good concentricity High Precision
Good surface quality Stable quality
Good OD and ID tolerance Smooth Roughness
TORICH QUALITY ASSURANCE
Referenced Documents:
ASTM Standards:
ASTM A240/A240M Specification for Chromium and Chromium Nickel Stainless Steel Plate, Sheet, and Stip for Pressure Vessel and for General Application
ASTM A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
ASTM A480/ A480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
ASTM A941 Terminology Rlating to Steel, Stainless Steel, Related Alloys and Ferroalloys
ASTM A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe
E527 Practice for Numbering Metals and Alloys (UNS)
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.
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 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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