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Soft Iron 347SS Octagonal Ring Joint Gasket Lens Ring Flange
ASME B16.20 347SS Octagonal Ring Joint Gasket
Operating range
The pressure and temperature depend on the combination of materials used.
Chemical resistance:The corrosion resistance depends on the selected ring material.
Materials
RTJ gaskets are available as standard in soft metal and in 304, 316 and stainless steels. Versions in
other materials on request.
Style R ring type joints are manufactured on oval (2962/R) and octagonal profiles (2961/R).
Both styles are interchangeable in the modern flat bottomed groove.
Octagonal profile joints are interchangeable on flat bottomes groove flanges which have a 23 degree angle groove wall
Advantages
Metal-to-metal contact creates a reliable seal
Suitable for extreme pressure and temperature requirements
Certified quality (including surface hardness)
we supplies ring joint gaskets (RTJ Gasket) with the hardness numbers as follows:
GASKET MATERIALS
BRINELL HARDNESS NUMBER (max)
ROCKWELL HARDNESS NUMBER (max)
IDENTIFICATION
Soft iron
90
56
D
Low carbon steel
120
68
S
4-6% Chrome 1/2% molybdenum
130
72
F5
304 Stainless Steel
160
83
S304
316 Stainless Steel
160
83
S316
347 Stainless Steel
160
83
S347
Common Materials
Material
HB Hardness
Temperature Limitations
Identification
Soft Iron
90
-60 to +400 °C
D
Low carbon steel
120
-40 to +500°C
S
4%-6% Cr ½% Mo:F5
130
-125 to +500°C
F5
Stainless steel 304/304L
160
-250 to +650°C
S304 or 304L
Stainless steel 316/316L
160
-196 to +800°C
S316 or 316L
Stainless steel 321
160
-250 to +870°C
S321
Stainless steel 347
160
-250 to +870°C
S347
Stainless steel 410
170
-20 to +500°C
S410
Inconel 625
–
1000°C
625
Incoloy 825
–
1000°C
825
Hastelloy C-276
–
1000°C
C-276
Duplex
–
800°C
S31803
Titanium
–
540°C
TI
We specializes in ring joint gasket, including ring gasket in R, RX, BX, IX types, lens gasket, weld
ring gasket and bonnet gasket(according to client's drawing). The metal gasket designed for use in high pressure, high temperature application necessitated the need for a high integrity seal.
Our products are widely used in flat gate valve, Christmas tree, pipeline fittings, flange, high pressure vessel, oil &gas industry, wellhead assembly, petrochemical industry and the
like.
We can offer more than 30 kinds of materials, such as 321SS, 347SS, 316SS, 304SS, Inconel 625, Monel 400, INCOLY 825, Nickel 200, Duplex F44, soft iron, low carbon steel and so on. We could
produce the maximum outside diameter is 2500mm. We have over 10 years experience in export business. Our products are sold to Southeast Asia, Middle East, Europe and America and well
appreciated by our clients.
Programming interface ring Joint gaskets come in two fundamental sorts, an oval cross segment and an
octagonal cross segment. These essential shapes are utilized in pressures up to 10,000 Rubber Seals and Gasket. The measurements are institutionalized and require uniquely notched spines. The
octagonal cross segment has a higher fixing proficiency than the oval and would be the favored gasket. Be that as it may, just the oval cross segment can be utilized in the old sort round
base notch. The more up to date level base furrow configuration will acknowledge either the oval or the octagonal cross segment. The fixing surfaces on the ring joint sections must be easily
completed to 63 smaller scale inches and to be liberated from shocking edges, apparatus or babble marks. They seal by an underlying line contact or an edging activity as the compressive
powers are applied.
FAQ
Q: Are you trading company or manufacturer ?
A: We are a professional production enterprise
Q: How long is your delivery time?
A: Generally it is 7-15 days for stock delivery, and 15-30 days for manufacturing goods , but it
depands on the quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we can provide you sample, but you need to pay for the sample and freight firstly.We will
return the fee after you make an order.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before
shippment.
Q:How can we trust you to make a guaranteed deal?
A:We can trade through alibaba credit guarantee orders, which will fully guarantee the effective rights and interests of buyers and sellers.
Q:Package information?
A:For inner box and master carton are made as per international standards,and we can make special
designed for you if need.
If you have another question, pls feel free to contact us.