JIS 3455 Hot Finished or Cold Finished Pecision Seamless Steel Tubes Fluid Pipes
Product Details
precision steel pipe
,precision seamless pipe
JIS 3455 Hot Finished or Cold Finished Pecision Seamless Steel Tubes Fluid Pipes
| Product name: | JIS 3455 Hot Finished or Cold Finished Pecision Seamless Steel Tubes Fluid Pipes |
| Keywords: | Fluid Pipes |
| Standard: | JIS 3455 |
| Material: | STS38, STS42, STS49, STS370, STS410, STS480 |
| OD: | 10.5-660.4 mm |
| WT: | 1.7-64.2 mm |
| Technical: | Cold Drawn, Hot Rolled |
| Application: | Liquid/Gas Transportation gas pipe |
Method of manufacture
a) The pipe shall be manufactured from killed steel by the seamless process and shall be finished according to table3.
b) The pipe shall be subjected to the heat treatment specified in table 2. The heat treatment other than those specified
in table 2 shall be agreed upon by the purchaser and the manufacturer.
e)When required by the purchaser, the pipe may be furnished with a bevel end.
Table 1 Chemical compositions:
| Designation of grade | C | Si | Mn | P | S |
| STS 370 | 0.25max. | 0.10 to 0.35 | 0.30 to 1.10 | 0.35max. | 0.35max. |
| STS 410 | 0.30max. | 0.10 to 0.35 | 0.30 to 1.40 | 0.35max. | 0.35max. |
| STS 480 | 0.33max. | 0.10 to 0.35 | 0.30 to 1.50 | 0.35max. | 0.35max. |
Table 2 Heat treatment:
| Designation of grade | Hot-finished seamless steel pipe | Cold-finished seamless steel pipe |
| STS 370 STS 410 | As manufactured. However, low temperature annealing or normalizing may be applied, as necessary. | Low temperature annealed or normalized |
| STS 480 | Low temperature annealed or normalized | |
Table 3 Designations of grade and manufacturing process:
| Designation of grade | Designation of manufacturing process | ||
| Manufacturing process of tubes | Method of finishing | Marking | |
| STS 370 | Seamless:S | Hot finished: H Cold finished: C | Marking of manufacturing method shall be as standard. |
| STS 410 | |||
| STS 480 | |||
Product Display of JIS 3455 Pecision Seamless Steel Tubes Fluid Pipes
Company Introduction
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 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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