Velander Steel Co., Limited
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S31260 Seamless Welded Stainless Tube For Heat Exchanger
Description
| Producsts Name | ASTM A790 S31260 Seamless Welded Stainless Tube for Heat Exchanger |
| Technical Standard | ASTM A790 S31260 Seamless Welded Stainless Tube |
| Steel Grade/Steel Numbe | S31260 S31200 S31500 S31803 S32001 S32003 S32101 |
| Size Range | OD: 5mm-813mm WT: 0.5-50mm Length: As customer's require Cutting Length: available according to customer's requirement. |
| Delivery Condition | Bright Annealing. Pickling and Solution Heat Treatment. |
| Surface Treatment/Surface Condition | Bright Surface. Dull Surface. Polish Surface. |
| Tube Inspection | 100% Dimensional Check 100% Eddy Current Test (ETD) 100% Ultrasonic Test (UTD Mechanical Properties Inspection, Internal Lab test report or Third Party Inspection Report. |
| Inspection Istrument | Outside micrometer, wall thickness micrometer, inside dial gauge, vernier caliper, tensile testing machine, hardness tester, eddy current flaw detector, metallographic analyzer, surface roughness meter |
| Tube Application | Fluid and Gas Transport Industry Hydraulic Pressure |
| Production Process | Round steel warehousing → round steel inspection → round steel sawing → central hole drilling → perforation → pickling → cold drawing or cold rolling (finish rolling) → annealing → straightening → head and tail cutting → finished product inspection → packaging → delivery |
Chemical Composition of ASTM A790 S31260 Seamless Welded Stainless Tube
| UNS Designation | C | Mn | P | S | Si | Ni | Cr | Mo |
| S31200 | 0.030 | 2.00 | 0.045 | 0.030 | 1.00 | 5.5-6.5 | 24.0-26.0 | 1.20-2.00 |
| S31260 | 0.030 | 1.00 | 0.030 | 0.030 | 0.75 | 5.5-7.5 | 24.0-26.0 | 2.5-3.5 |
| S31500 | 0.030 | 1.20-2.00 | 0.030 | 0.030 | 1.40-2.00 | 4.3-5.2 | 18.0-19.0 | 2.50-3.00 |
| S31803 | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 4.5-6.5 | 21.0-23.0 | 2.5-3.5 |
| S32001 | 0.030 | 4.0-6.0 | 0.040 | 0.030 | 1.00 | 1.0-3.0 | 19.5-21.5 | 0.60 |
| S32003 | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 3.0-4.0 | 19.5-22.5 | 1.50-2.00 |
| S32101 | 0.040 | 4.0-6.0 | 0.040 | 0.030 | 1.00 | 1.35-1.70 | 21.0-22.0 | 0.10-0.80 |
| S32202 | 0.030 | 2.00 | 0.040 | 0.010 | 1.00 | 1.00-2.80 | 21.5-24.0 | 0.45 |
| S32205 | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 4.5-6.5 | 22.0-23.0 | 3.0-3.5 |
| S32304 | 0.030 | 2.50 | 0.040 | 0.040 | 1.00 | 3.0-5.5 | 21.5-24.5 | 3-5 |
| S32506 | 0.030 | 1.00 | 0.040 | 0.015 | 0.90 | 5.5-7.2 | 24.0-26.0 | 2.9-3.9 |
| S32520 | 0.030 | 1.50 | 0.035 | 0.020 | 0.80 | 5.5-8.0 | 23.0-25.0 | 4.0-5.0 |
| S32550 | 0.04 | 1.50 | 0.040 | 0.030 | 1.00 | 4.5-6.5 | 24.0-27.0 | 3.0-5.0 |
| S32707 | 0.030 | 1.50 | 0.035 | 0.010 | 0.50 | 5.5-9.5 | 26.0-29.0 | 3.0-4.0 |
| S32750 | 0.030 | 1.20 | 0.035 | 0.020 | 0.80 | 6.0-8.0 | 24.0-26.0 | 0.80-1.20 |
| S32760 | 0.030 | 1.00 | 0.030 | 0.010 | 1.00 | 6.0-8.0 | 24.0-26.0 | 1.00-2.00 |
| S32808 | 0.030 | 1.10 | 0.030 | 0.010 | 0.50 | 7.0-8.2 | 27.0-27.9 | 0.80-2.00 |
| S32900 | 0.08 | 1.00 | 0.040 | 0.030 | 0.75 | 2.5-5.0 | 23.0-28.0 | 1.00-2.00 |
| S32906 | 0.030 | 0.80-1.50 | 0.030 | 0.030 | 0.80 | 5.8-7.5 | 28.0-30.0 | 1.50-2.60 |
| S32950 | 0.030 | 2.00 | 0.035 | 0.010 | 0.60 | 3.5-5.2 | 26.0-29.0 | 1.00-2.50 |
| S33207 | 0.030 | 1.50 | 0.035 | 0.010 | 0.80 | 6.0-9.0 | 29.0-33.0 | 3.0-5.0 |
| S39274 | 0.030 | 1.00 | 0.030 | 0.020 | 0.80 | 6.0-8.0 | 24.0-26.0 | 2.5-3.5 |
| S39277 | 0.025 | 0.80 | 0.025 | 0.002 | 0.80 | 6.5-8.0 | 24.0-26.0 | 2.00-4.00 |
| S82011 | 0.030 | 2.0-3.0 | 0.040 | 0.020 | 1.00 | 1.00-2.00 | 20.5-23.5 | 0.10-1.00 |
| S82441 | 0.030 | 2.50-4.00 | 0.035 | 0.005 | 0.70 | 3.0-4.5 | 23.0-25.0 | 1.00-2.00 |
Mechanical properties:
| Grade | Tensile strength | Yield strength | Elongation L/T(%) |
| P195GH | 320-440 | ≥195 | 27/25 |
| P235GH | 360-500 | ≥235 | 25/23 |
| P265GH | 410-570 | ≥265 | 23/21 |
| 13CrMo4-5 | 440-590 | ≥290 | 22/20 |
| 10CrMo9-10 | 480-630 | ≥280 | 22/20 |
Application:
For producing storage tanks of heat-resistant steels used in boiler-making, tool-making; And for constructing pressure reservoirs and high pressure are simultaneously used to have summarized load and special conditions.
FAQ:
Q1: How to order?
1. To specity standard and the thickness.
2. To specity surface treatment.
3. To specity figure size and quantity.
Q2: After sales service?
Quality are promised.We have a dedicated after-sales department to be responsible for all subsequent work after delivery.
Q3: Can I have a sample order for pipe fittings?
Yes, we welcome sample order to test and check quality.Mixed samples are acceptable.
Q4: Do you offer guarantee for the products?
Yes, we offer almost 20 years warranty to our products.