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AS 4087:2004 PN 35 PN35 FLANGE THICKNESS DRILLING DATA PN35 NOMINAL  PIPE SIZE FLANGE OUTSIDE DIAMETER THICKNESS OF  FLANGE PITCH CIRCLE DIAMETER BOLT HOLE DIAMETER NUMBER OF BOLT HOLES NOMINAL  PIPE SIZE MM INCH OD T PCD H # MM INCH 50 2 165 19 127 18 4 50 2 65 2  1/2 185 19 146 18 8 65 2  1/2 80 3 205 24 165 18 8 80 3 100 4 230 24 191 18 8 100 4 150 6 305 31 260 22 12 150 6 200 8 370 31 324 22 12 200 8 225 9 405 38 356 26 12 225 9 250 10 430 38 381 26 12 250 10 300 12 490 38 438 26 16 300 12 350 14 550 48 495 30 16 350 14 375 15 580 48 521 30 16 375 15 400 16 610 48 552 30 20 400 16 450 18 675 58 610 33 20 450 18 500 20 735 58 673 33 24 500 20 600 24 850 68 781 36 24 600 24 700 28 935 78 857 36 24 700 28 750 30 1015 78 940 36 28 750 30 800 32 1060 84 984 36 28 800 32 900 36 1185 94 1105 39 32 900 36 1000 40 1275 98 1194 39 36 1000 40 1200 48 1530 108 1441 42 40 1200 48 Notes: (1)Flat face and Raised face or “O” ring groove also available. (2) For special design, pls make an enquiry here.

AS 2129:2000 TABLE F TABLE F LENGTH THROUGH HUB DRILLING DATA TABLE F NOMINAL PIPE SIZE FLANGE  OUTSIDE  DIAMETER THICKNESS OF FLANGE  (Refer Note.1) BOSSED  SOW WELD  NECK PITCH  CIRCLE DIAMETER BOLT  HOLE DIAMETER NUMBER  OF  BOLT  HOLES NOMINAL  PIPE SIZE MM INCH OD T L L1 PCD H ﹟ MM INCH 15 1/2 95 10 20 32 67 14 4 15 1/2 20 3/4 100 10 21 32 73 14 4 20 3/4 25 1 120 10 21 39 87 18 4 25 1 32 1 1/4 135 13 24 48 98 18 4 32 1 1/4 40 1 1/2 140 13 26 48 105 18 4 40 1 1/2 50 2 165 16 29 51 127 18 4 50 2 65 2 1/2 185 16 32 54 146 18 8 65 2 1/2 80 3 205 16 32 60 165 18 8 80 3 90 3 1/2 215 19 36 63 178 18 8 90 3 1/2 100 4 230 19 38 70 191 18 8 100 4 125 5 280 22 41 79 235 22 8 125 5 150 6 305 22 41 79 260 22 12 150 6 200 8 370 25 47 92 324 22 12 200 8 225 9 405 29 54 102 356 26 12 225 9 250 10 430 29 56 102 381 26 12 250 10 300 12 490 32 61 111 438 26 16 300 12 350 14 550 35 495 30 16 350 14 375 15 580 38 521 30 16 375 15 400 16 610 41 552 30 20 400 16 450 18 675 44 610 33 20 450 18 500 20 735 51 673 33 24 500 20 525 21 760 51 699 33 24 525 21 550 22 785 54 724 33 24 550 22 600 24 850 57 781 36 24 600 24 700 28 935 60 857 36 24 700 28 750 30 1015 67 940 36 28 750 30 800 32 1060 68 984 36 28 800 32 850 34 1090 70 1016 36 32 850 34 900 36 1185 76 1105 39 32 900 36 1000 40 1275 83 1194 39 36 1000 40 1050 42 1355 86 1270 39 36 1050 42 1200 48 1530 95 1441 42 40 1200 48 NOTES: (1) The minimum flange thickness in carbon steel flanges will be 12mm. (2) Bore sizes to suit ASME B 36.10B36.19 pipe unless otherwise specified. (3) Flanges are generally supplied flat faced. (4) For special requirement, please make a enquiry here now.

AS 2129:2000 TABLE K TABLE K LENGTH THROUGH HUB DRILLING DATA TABLE K NOMINAL PIPE SIZE FLANGE  OUTSIDE  DIAMETER THICKNESS OF FLANGE  (Refer Note.3) BOSSED  SOW WELD  NECK PITCH  CIRCLE DIAMETER BOLT  HOLE DIAMETER NUMBER  OF  BOLT  HOLES NOMINAL  PIPE SIZE MM INCH OD T L L1 PCD H ﹟ MM INCH 15 1/2 115 19 N/A 48 83 18 4 15 1/2 20 3/4 115 19 N/A 48 83 18 4 20 3/4 25 1 125 22 N/A 57 95 18 4 25 1 32 1 1/4 135 22 N/A 57 98 18 4 32 1 1/4 40 1 1/2 150 25 N/A 60 114 22 4 40 1 1/2 50 2 165 25 N/A 60 127 18 8 50 2 65 2 1/2 185 29 N/A 67 146 22 8 65 2 1/2 80 3 205 32 N/A 76 165 22 8 80 3 90 3 1/2 230 32 N/A 76 184 26 8 90 3 1/2 100 4 240 35 N/A 86 197 26 8 100 4 125 5 280 41 N/A 98 235 26 12 125 5 150 6 305 41 N/A 98 260 26 12 150 6 200 8 370 48 N/A 115 318 30 12 200 8 250 10 430 51 N/A 124 381 30 16 250 10 300 12 490 57 N/A 140 432 33 16 300 12 350 14 570 67 N/A 67 508 36 16 350 14 400 16 630 76 N/A 565 36 20 400 16 450 18 720 89 N/A 200 654 39 20 450 18 500 20 785 98 N/A 215 711 42 20 500 20 550 22 870 105 N/A 222 781 55 20 550 22 NOTES: (1) Bore sizes to suit ASME B 36.10B36.19 pipe unless otherwise specified. (2) Raised face availabe only. (3) For special requirement, please make a enquiry here now.

AS 2129:2000 TABLE H TABLE H LENGTH THROUGH HUB DRILLING DATA TABLE H NOMINAL PIPE SIZE FLANGE  OUTSIDE  DIAMETER THICKNESS OF FLANGE BOSSED  SOW WELD  NECK PITCH  CIRCLE DIAMETER BOLT  HOLE DIAMETER NUMBER  OF  BOLT  HOLES NOMINAL  PIPE SIZE MM INCH OD T L L1 PCD H ﹟ MM INCH 15 1/2 115 13 23 42 83 18 4 15 1/2 20 3/4 115 13 24 42 83 18 4 20 3/4 25 1 120 14 25 43 87 18 4 25 1 32 1 1/4 135 17 28 52 98 18 4 32 1 1/4 40 1 1/2 140 17 30 52 105 18 4 40 1 1/2 50 2 165 19 32 54 127 18 4 50 2 65 2 1/2 185 19 35 57 146 18 8 65 2 1/2 80 3 205 22 38 66 165 18 8 80 3 90 3 1/2 215 22 39 66 178 18 8 90 3 1/2 100 4 230 25 44 76 191 18 8 100 4 125 5 280 29 48 86 235 22 8 125 5 150 6 305 29 48 86 260 22 12 150 6 200 8 370 32 54 99 324 22 12 200 8 225 9 405 35 60 108 356 26 12 225 9 250 10 430 35 62 108 381 26 12 250 10 300 12 490 41 70 120 438 26 16 300 12 350 14 550 48 495 30 16 350 14 375 15 580 51 521 30 16 375 15 400 16 610 54 552 30 20 400 16 450 18 675 60 610 33 20 450 18 500 20 735 67 673 33 24 500 20 525 21 760 70 699 33 24 525 21 550 22 785 70 724 33 24 550 22 600 24 850 76 781 36 24 600 24 NOTES: (1) The minimum flange thickness in carbon steel flanges will be 12mm. (2) Bore sizes to suit ASME B 36.10B36.19 pipe unless otherwise specified. (3) Flanges are generally supplied flat faced. (4) For special requirement, please make a enquiry here now.

AS 2129:2000 TABLE J TABLE J LENGTH THROUGH HUB DRILLING DATA TABLE J NOMINAL PIPE SIZE FLANGE  OUTSIDE  DIAMETER THICKNESS OF FLANGE  (Refer Note.3) BOSSED  SOW WELD  NECK PITCH  CIRCLE DIAMETER BOLT  HOLE DIAMETER NUMBER  OF  BOLT  HOLES NOMINAL  PIPE SIZE MM INCH OD T L L1 PCD H ﹟ MM INCH 15 1/2 115 16 26 45 83 18 4 15 1/2 20 3/4 115 16 27 45 83 18 4 20 3/4 25 1 120 19 30 48 87 18 4 25 1 32 1 1/4 135 19 30 54 98 18 4 32 1 1/4 40 1 1/2 140 22 35 57 105 18 4 40 1 1/2 50 2 165 25 38 60 127 22 4 50 2 65 2 1/2 185 25 41 63 146 22 8 65 2 1/2 80 3 205 32 48 76 165 22 8 80 3 90 3 1/2 215 32 49 76 178 22 8 90 3 1/2 100 4 230 35 54 86 191 22 8 100 4 125 5 280 38 57 95 235 26 8 125 5 150 6 305 38 57 95 260 26 12 150 6 200 8 370 41 108 324 26 12 200 8 250 10 430 48 121 381 30 12 250 10 300 12 490 51 130 438 30 16 300 12 350 14 550 57 143 495 33 16 350 14 400 16 610 64 552 33 20 400 16 450 18 675 70 610 36 20 450 18 500 20 735 79 673 36 24 500 20 550 22 785 86 724 36 24 550 22 600 24 850 92 781 39 24 600 24 NOTES: (1) Bore sizes to suit ASME B 36.10B36.19 pipe unless otherwise specified. (2) Raised face is the prefered configuration. (3) For special requirement, please make a enquiry here now.

AS 2129:2000 TABLE T TABLE T LTB DRILLING DATA TABLE T NOMINAL PIPE SIZE FLANGE  OUTSIDE  DIAMETER THICKNESS OF FLANGE WELD  NECK PITCH  CIRCLE DIAMETER BOLT  HOLE DIAMETER NUMBER  OF  BOLT  HOLES NOMINAL  PIPE SIZE MM INCH OD T L1 PCD H ﹟ MM INCH 15 1/2 140 25 63 102 22 4 15 1/2 20 3/4 140 25 63 102 22 4 20 3/4 25 1 145 29 73 108 22 4 25 1 32 1 1/4 160 32 80 121 26 4 32 1 1/4 40 1 1/2 170 35 86 133 22 8 40 1 1/2 50 2 185 35 89 146 22 8 50 2 65 2 1/2 205 41 101 165 26 8 65 2 1/2 80 3 235 48 108 191 30 8 80 3 90 3 1/2 265 54 124 216 33 8 90 3 1/2 100 4 285 57 133 235 33 8 100 4 125 5 325 67 159 273 33 12 125 5 150 6 375 73 175 318 36 12 150 6 200 8 475 89 203 406 42 12 200 8 250 10 560 108 254 489 42 16 250 10 300 12 655 121 292 572 48 16 300 12 NOTES: (1) Bore sizes to suit ASME B 36.10B36.19 pipe unless otherwise specified. (2) Raised face availabe only. (3) For special requirement, please make a enquiry here now.

AS 2129:2000 TABLE S TABLE S LTB DRILLING DATA TABLE S NOMINAL PIPE SIZE FLANGE  OUTSIDE  DIAMETER THICKNESS OF FLANGE WELD  NECK PITCH  CIRCLE DIAMETER BOLT  HOLE DIAMETER NUMBER  OF  BOLT  HOLES NOMINAL  PIPE SIZE MM INCH OD T L1 PCD H ﹟ MM INCH 15 1/2 125 22 60 89 22 4 15 1/2 20 3/4 125 22 60 89 22 4 20 3/4 25 1 140 25 69 102 22 4 25 1 32 1 1/4 145 29 77 108 22 4 32 1 1/4 40 1 1/2 160 29 80 121 22 4 40 1 1/2 50 2 170 32 83 133 22 8 50 2 65 2 1/2 185 32 86 146 22 8 65 2 1/2 80 3 205 35 89 165 26 8 80 3 90 3 1/2 235 38 92 191 26 8 90 3 1/2 100 4 250 41 101 203 30 8 100 4 125 5 285 44 104 235 26 12 125 5 150 6 325 51 127 273 30 12 150 6 200 8 415 64 150 356 36 12 200 8 250 10 485 79 190 425 36 16 250 10 300 12 580 92 219 508 42 16 300 12 350 14 650 105 248 578 42 20 350 14 400 16 745 117 276 660 48 20 400 16 NOTES: (1) Bore sizes to suit ASME B 36.10B36.19 pipe unless otherwise specified. (2) Raised face availabe only. (3) For special requirement, please make a enquiry here now.

AS 2129:2000 TABLE R TABLE R LTB DRILLING DATA TABLE R NOMINAL PIPE SIZE FLANGE  OUTSIDE  DIAMETER THICKNESS OF FLANGE WELD  NECK PITCH  CIRCLE DIAMETER BOLT  HOLE DIAMETER NUMBER  OF  BOLT  HOLES NOMINAL  PIPE SIZE MM INCH OD T L1 PCD H ﹟ MM INCH 15 1/2 115 19 48 83 18 4 15 1/2 20 3/4 115 19 48 83 18 4 20 3/4 25 1 125 22 57 95 18 4 25 1 32 1 1/4 135 22 57 98 18 4 32 1 1/4 40 1 1/2 150 25 60 114 22 4 40 1 1/2 50 2 165 25 60 127 18 8 50 2 65 2 1/2 185 29 67 146 22 8 65 2 1/2 80 3 205 32 76 165 22 8 80 3 90 3 1/2 230 32 76 184 26 8 90 3 1/2 100 4 240 35 86 197 26 8 100 4 125 5 280 41 98 235 26 12 125 5 150 6 305 44 111 260 26 12 150 6 200 8 370 51 124 324 30 12 200 8 250 10 430 60 152 387 30 16 250 10 300 12 510 70 172 457 33 16 300 12 350 14 585 79 193 527 36 16 350 14 400 16 640 89 216 584 36 20 400 16 450 18 735 98 235 673 39 20 450 18 500 20 805 105 242 730 42 20 500 20 550 22 895 114 257 806 55 20 550 22 NOTES: (1) Bore sizes to suit ASME B 36.10B36.19 pipe unless otherwise specified. (2) Raised face availabe only. (3) For special requirement, please make a enquiry here now.

The corrosion resistance of stainless steel and nickel alloy is dependent on a thin invisible film on the steel surface, the passive film. There are, however, environments that cause permanent breakdown of the passive layer. Under circumstances where the passive layer cannot be rebuilt, corrosion occurs on the unprotected surface. Different media can cause different types of corrosion attack that may vary in nature and appearance. Several forms of corrosion can occur on stainless steels and nickel alloy plates.

The first and most important step toward successful use of stainless steel or nickel alloy is selection of the proper type for the application. Stainless steels and nickel alloys include a large number of standard types, but these types differ greatly from one another in composition, corrosion resistance, physical properties, and mechanical properties, and selection of the optimum type for a specific application is the key to satisfactory performance at a minimum total cost. Below is a suggested checklist of properties to be considered in the selection of the proper type for a specific application. This includes not only the obvious properties but also some less frequently required, but occasionally overlooked, properties. Property Checklist for Type Selection Corrosion resistance Oxidation and sulfidation resistance Strength and ductility at service and ambient temperatures Suitability for intended fabrication techniques Suitability for intended cleaning procedures Property stability in service Toughness Abrasion and erosion resistance Galling and seizing resistance Reflectivity Magnetic properties Thermal conductivity Thermal expansion Electrical resistivity Sharpness (retention of cutting edge) Rigidity Dimensional stability Corrosion resistance is frequently the most important characteristic of a stainless or heat resistant steel but is often also the most difficult to assess for a specific application. General corrosion resistance to natural conditions and to pure chemical solutions is comparatively easy to determine. However, general corrosion is often much less serious than localized forms such as stress corrosion cracking, crevice corrosion in tight spaces or under deposits, pitting attack, intergranular attack in “sensitized” material such as in weld heat affected zones, etc. Such localized corrosion can cause unexpected and sometimes catastrophic failures while most of a structure is unaffected and must, therefore, be considered carefully in design and in steel selection. Corrosive attack can also be dramatically increased by seemingly minor impurities in the medium, which may be difficult to anticipate but can have major effects even in parts-per-million concentrations. At elevated temperatures, an attack on the metal can be significantly accelerated by seemingly minor changes in atmosphere which affect scaling rate, sulfidation, or carburization. Despite these complications, a suitable steel can be selected for most applications on the basis of experience, perhaps assisted by suggestions from the steel producer. However, it must be recognized that laboratory corrosion data can be misleading in predicting service performance of a particular type. Even service data have limitations because similar corrosive media may differ substantially due to slight variations in some of the above corrosion factors. For difficult applications, extensive study of comparative data may be necessary, sometimes followed by pilot or service testing. Mechanical properties at service temperature are an obvious consideration, but sometimes overlooked is the necessity for satisfactory properties at other temperatures which are likely to be experienced. Thus, a product for arctic service must have suitable properties at subzero temperatures even though the steady-state operating temperature may be much higher, and post-service room-temperature properties can be important for a structure which may be intermittently shut down after operating at an elevated temperature. Selection must consider not only performance requirements but also fabrication and cleaning requirements. Frequently, a particular type is chosen for a fabrication characteristic such as formability or weldability over other types, which would perform adequately, but cost more to fabricate. Even a required or preferred cleaning procedure may dictate steel selection. Sometimes, it is overlooked that a welded fabrication, which is to be cleaned in a medium which attacks sensitized stainless steel, such as nitric-hydrofluoric acid, should be produced from stabilized or low-carbon types even though sensitization may be unimportant under service conditions. Other properties listed in the checklist are of vital importance for some specialized applications but are of little concern for many other applications. Surface finish is important for many applications, and stainless steels are sometimes used because of the variety of attractive finishes available. Selection among these finishes may be made on the basis of characteristics such as appearance, slideability, or cleanability. Effect of finish on the cleanability is not as simple as sometimes thought, and tests of available finishes may be advisable. Selection of finish may in turn influence selection of type because of differences in availability of the various finishes with grade or differences in finish durability. A more corrosion resistant type, for example, will maintain a bright finish in a corrosive environment, which would dull a lower alloy steel.

What is Stainless Steel? Stainless steel is essentially a low carbon steel which contains chromium at 10% or more by weight. It is this addition of chromium that gives the steel its unique stainless, corrosion-resisting properties. The chromium content of the steel allows the formation of a rough, adherent, invisible, corrosion-resisting chromium oxide film on the steel surface. If damaged mechanically or chemically, this film is self-healing, providing that oxygen, even in very small amounts, is present. The corrosion resistance and other useful properties of the steel are enhanced by increased chromium content and the addition of other elements such as molybdenum, nickel, and nitrogen. There are more than 60 grades of stainless steel. However, the entire group can be pided into five families. Each is identified by the alloying elements which affect its microstructure and for which each is named. Mainly because it was invented century ago, stainless has grown into a important material, its anti-corrosive qualities rendering it suitable for used in a huge range of different environments and circumstances. Towards the lay person, one little bit of stainless steel may seem just like any other, however the truth of the matter is a bit more complicated. The sturdiness of metal cheap it doesn’t should be painted or coated in any way helps it be the optimal material to be used in places where cleanliness is definitely a high priority, for example hospitals or kitchens. As mentioned previously, there is many form of stainless steel, with various grades being created via adding various other elements. They are selected to make slightly different alloys with particular properties including heat resistance or workability, which make the steel more suitable for specific tasks. This versatility is reflected in the fact that there are actually over 150 different grades of metal, with fifteen ones to be the ones normally used. Popular grades of stainless steel include: 304 stainless steel and 316 stainless steel. With a simpler level, there are five types of stainless steel, which may be classified as follows: Ferritic stainless steel – Ferritic stainless steels have ferrite (body centered cubic crystal) as their main phase. These stainless steels contain iron and chromium, based on the Type 430 composition of 17% chromium. Ferritic stainless steel is less ductile than austenitic stainless steel and is not hardenable by heat treatment. Austenitic stainless steel – These are actually the most common types of stainless steel, accounting for 70% of all stainless production. Its versatility is mostly down to the fact that it is usually formed and welded with successful results. Martensitic stainless steel – These types of steel shares some characteristics with ferritic, but boasts higher levels of carbon, up to a full 1%. This means that they can be tempered and hardened and are thus highly useful in situations where the strength of the steel is more important than its resistance to corrosion. Duplex stainless steel – Put simply, Duplex stainless steels are a combination of ferritic and austenitic stainless steels, a structure which renders duplex stainless steel stronger than both. Precipitation Hardening – With the addition of elements such as Aluminium, Copper and Niobium, these stainless steels become extremely strong. They can be machined and worked into a wide variety of shapes without becoming distorted and, in terms of corrosion, have the same resistance levels as austenitic stainless steels.

Nickel, long used as an alloying element in thousands of alloys, is produced by a wide range of companies worldwide. It has an excellent track record for providing corrosion resistance, high strength at high temperatures, and aesthetic beauty in a wide range of applications. Nickel alloys are used today to provide cleaner and safer transportation, clean food and water, reduced emissions to air and water, more durable products, clean and renewable energy, and efficient shipping and communications. It has become known as an “enviro-metal.”