SO Duplex Stainless Steel Flanges RF 900# 26"- 48" ASME B16.47
SER.B ASTM A182
1. Flange Specification:
| | | Thickness | | | | | | Drilling | | | | Weights |
| Nom Size | OD | Weld Neck | Blind | OD of RF | Dia at Base | Bore | LTH | Dia Bevel | Bolt Circle | Bolt Length | Hole Dia | # of Holes | Weld Neck |
| O | C | C | R | X | B | Y | A | | -1 | -2 | | |
| 26 | 40.25 | 5.31 | 6.06 | 30 | 29.25 | As the customer's discretion | 10.19 | 26 | 35.5 | 17.75 | 2.62 | 20 | 1050 |
| 28 | 43.5 | 5.81 | 6.56 | 32.25 | 31.38 | 10.88 | 28 | 38.25 | 19.5 | 2.88 | 20 | 1520 |
| 30 | 46.5 | 6.12 | 6.93 | 34.5 | 33.5 | 11.38 | 30 | 40.75 | 20.5 | 3.12 | 20 | 1820 |
| 32 | 48.75 | 6.31 | 7.31 | 36.5 | 35.75 | 11.94 | 32 | 43 | 21 | 3.12 | 20 | 2065 |
| 34 | 51.75 | 6.75 | 7.68 | 39 | 37.88 | 12.56 | 34 | 45.5 | 22.5 | 3.38 | 20 | 2450 |
| 36 | 53 | 6.81 | 7.94 | 40.5 | 40 | 12.81 | 36 | 47.25 | 22.25 | 3.12 | 24 | 2520 |
| 38 | 57.5 | 7.5 | 8.5 | 43.25 | 42.25 | 13.88 | 38 | 50.75 | 24.5 | 3.62 | 20 | 3385 |
| 40 | 59.5 | 7.75 | 8.81 | 45.75 | 44.38 | 14.31 | 40 | 52.75 | 25 | 3.62 | 24 | 3620 |
| 42 | 61.5 | 8.12 | 9.12 | 47.75 | 46.31 | 14.62 | 42 | 54.75 | 25.75 | 3.62 | 24 | 3960 |
| 44 | 64.88 | 8.44 | 9.56 | 50 | 48.62 | 15.38 | 44 | 57.62 | 27 | 3.88 | 24 | 4300 |
| 46 | 68.25 | 8.88 | 10.06 | 52.5 | 50.88 | 16.18 | 46 | 60.5 | 28.5 | 4.12 | 24 | 4640 |
| 48 | 70.25 | 9.19 | 10.38 | 54.5 | 52.88 | 16.5 | 48 | 62.5 | 29 | 4.12 | 24 | 4980 |
2. 304L Stainless Steel escription
Alloy 304/304H has good resistance to atmospheric corrosion, foods
and beverages and to many organic
and inorganic chemicals in moderately oxidizing to moderately
reducing environments. The high chromium
content of the alloy provides resistance to oxidizing solutions
such as nitric acid up to 55% weight and up
to 176°F (80°C).
Alloy 304/304H also resists moderately aggressive organic acids
such as acetic. The nickel present in the
alloy provides resistance to moderately reducing solutions such as
pure phosphoric acid, whatever the
concentration, in cold solutions and up to 10% diluted hot
solutions. The alloy can also operate successfully
in caustic solutions free of chlorides or fluorides at moderate
temperatures.
Alloy 304/304H does not perform well in more highly reducing
environments such as those containing
chlorides and sulfuric acid.
Alloy 304/304H performs well in fresh water service with low levels
of chlorides (less than 100ppm). At
higher chloride levels the grade is susceptible to crevice
corrosion and pitting. For successful
performance under these more severe conditions, higher molybdenum
content is need such as
316/316L. Alloy 304/304H is not recommended for service in marine
environments.
In most instances, the corrosion resistance of Alloys 304, 304L and
30H will be roughly equal in most
corrosive environments. However, in environments that are
sufficiently corrosive to cause intergranular
corrosion of welds and heat-affected zones Alloy 304L should be
used because of its low carbon content.
3. 304H Stainless Steel WN Flange Packaging
304H Stainless Steel SO Flanges are widely used in various
industries including petrochemical, oil and
gas, power generation, bulk liquid transportation, chemicals,
pharmaceuticals, pulp and paper
manufacturing, textiles and others. All our 304H Stainless Steel WN
Flanges are manufactured in
accordance with international standards. 304H Stainless Steel WN
Flanges are packaged to ensure that
there is no damage during transit. In case of exports, standard
export packaging is done in wooden cases.
All 304H Stainless Steel WN Flanges are marked with Grade, Lot No,
Size, Degree and our trade mark. On
special requests we can also, make custom marking on 304H Stainless
Steel WN Flanges.
4. Delivery:
Port:Tianjin/Shanghai/Ningbo
Lead Time :
| Quantity(Pieces) | 1 - 100 | >100 |
| Est. Time(days) | 15-30 | To be negotiated |
5. Documentation
• Commercial Invoice which includes HS Code
• Packing List including net weight and gross weight, number of
boxes, Marks and Numbers
• Certificate of Origin legalized/attested by Chamber of Commerce
or Embassy
• Fumigation Certificates
• Raw Material Test Reports
• Material Traceability Records
• Quality Assurance Plan (QAP)
• Heat Treatment Charts
• Test Certificates certifying NACE MR0103, NACE MR0175
• Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204
3.2
• Guarantee Letter
• NABL approved Laboratory Test Reports
• Welding Procedure Specification/Procedure Qualification Record,
WPS/PQR
• Form A for the purposes of the Generalized System of Preferences
(GSP)
Why Choose Us
1. One-Stop Service,One Single Source.
2. No MOQ.
3. Best quality,competitive price
4. Fast Reply.
5. On-Time Delivery
6. Professional sales and technical team .
FAQ
Q1: Are you a factory or a trade company?
A1: We are a professional manufacturer for designing and producing
of Large-size products.(View Mor)
Q2: Do you make customized products or finished parts?
A2: All parts are custom made only, and in stock, we can produce
based on your drawings.
Q3: Will my drawing be e after you get it?
A3: Yes, we will not release your design to third party unless with
your permission.
Q4: What is the MOQ?
A4: Small order is acceptable, but the more, the cheaper.
Q5: How about the samples?
A5: We are happy to make prototype part or sample for clients to
ensure quality standard, but it’s charged according to your
drawing.
