What is ASTM A182 F9 Flange?
The ASTM A182 F9 is basically a forging material specification that defines the F9 grade alloy steel and they are mainly used for making flanges that are used in various high temperature and high pressure applications. The addition of chromium and molybdenum in the steel alloy helps in enhancing its ductility. Some of the mechanical properties present in the ASTM A182 F9 Flange are:
The ASTM A182 F9 material is also very versatile and hence they are used in several industries, such as pharmaceuticals, pharma equipment, sea water equipment, heat exchangers, condensers, chemical equipment, power generation, off-shore oil drilling companies and many more. They are thinner in size and hence are perfect for compact spaces. The ASTM A182 F9 Flanges are available with three different types of flange face, namely
SA182 F9 Socket Weld Flange vs A182 F9 Weld Neck Flanges
The SA182 F9 Socket Weld Flange is widely used for small pipes that contain fluids and gases at high pressure. These flanges are basically attached by inserting the socket end to the pipe and then a fillet weld is applied for welding around the top region. This helps in a smooth bore and better fluid or gas flow occurs inside the pipe.
The A182 F9 Weld Neck Flanges are typically used for several critical situations, like high pressure and wide fluctuations in temperature and pressure. They are also used in high temperature conditions and with volatile and/or hazardous fluids. It can prove to be useful even when the temperature is below the sub-zero range.
ASTM A182 F9 Flanges
ASTM A182 Gr F9 Slip on Flange Vs SA 182 F9 Blind Flange
The ASTM A182 Gr F9 Slip on Flange looks like a ring that is placed over the end of the pipe. They should be slid into the pipe before the welding process takes place. They are double weld on both outside and inside to avoid any kind of leakage. ASTM A182 Gr F9 Slip on Flange has a low material cost and comes with easy installation. They are suited for non-critical applications.
The SA 182 F9 Blind Flange looks like a solid disk that helps in creating a stop in the connection by blocking off the pipeline. Also known as a blank flange, they are used in areas where the piping system is not under usage. They come without any hub or centre hole, known as bore.
Size Range | 1/2″ to 48″ |
---|---|
Test | Magnetic particle detector, X-ray detector, Ultrasonic flaw detector, Direct-reading Spectrograph, Hydrostatic testing machine |
Origin | Japan / West Europe / Indian / USA / Korean |
DIN Pressure Calculation | 25Bar 40Bar 16Bar 6Bar 10Bar / PN64 PN10 PN25 PN16 PN6 PN40 |
Chart of Pressure Rating | 300 LBS, 2500 LBS, 1500 LBS, 900 LBS, 150 LBS, 600 LBS |
JIS | 40 K, 16 K, 5K, 10 K, 30 K, 20 K, 63 K |
Manufacturer of Connect / Flange Face Type | LJF, RF, RTJ, FF, Small Tongue, Large Tongue & Groove |
Standards Provided By Manufacturer | ISO70051, MSS S44, BS1560-3.1, API7S-43, B16.48, ANSI/ASME B16.5, B16.47 Series A & B, BS4504, JISB2220, ASME/ANSI B16.5/16.36/16.47A/16.47B, API605, BS 10, EN-1092, DIN, API7S-15, EN1092 |
Manufacturer of | GOST, JIS, ANSI, DIN, UNI, BS, AWWA, AS2129, SABS, NFE, EN etc. |
UNI / EN | 16Bar 6Bar 40Bar 10Bar 25Bar |
Common Types By Manufacturer | Threaded / Screwed / Forged / Plate |
Production technique Used By Manufacturer | Heat treated, Forged and machined |
Coating | Zinc Plated, Anti-rust Paint, Yellow Transparent, Oil Black Paint, Cold and Hot Dip Galvanized |
Equipment | Pushing Machine, Press machine, Sand-blasting machine, Bending machine, electric bevelling machine etc |
Leading A182 F9 Class 2 Flange wholesalers, supplier, distributor, importer, stockists, dealers, stockholders, exporters and Manufacturer in Mumbai
Flange NPS | H | Inside Diameter |
Flat Face Thickness (T2) |
Outside Diameter |
Raised Face (RF) |
Raised Face (R) |
H1 | Raised Face Thickness (T) |
T1 | Bolt Circle (BC) |
Bolt Hole (B) |
No. of Bolt Holes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1/2" | 1.19" | 0.62" | 1.82" | 3.50" | .063" | 1.38" | 0.84" | 1.88" | .38" | 2.38" | .62" | 4 |
1-1/4" | 2.31" | 1.38" | 2.19" | 4.62" | .063" | 2.50" | 1.66" | 2.25" | .56" | 3.50" | .62" | 4 |
3/4" | 1.50" | 0.82" | 2.00" | 3.88" | .063" | 1.69" | 1.05" | 2.06" | .44" | 2.75" | .62" | 4 |
1-1/2" | 2.56" | 1.61" | 2.38" | 5.00" | .063" | 2.88" | 1.90" | 2.44" | .62" | 3.88" | .62" | 4 |
1" | 1.94" | 1.05" | 2.13" | 4.25" | .063" | 2.00" | 1.32" | 2.19" | .50" | 3.12" | .62" | 4 |
2" | 3.06" | 2.07" | 2.44" | 6.00" | .063" | 3.62" | 2.38" | 2.50" | .69" | 4.75" | .75" | 4 |
2-1/2" | 3.56" | 2.47" | 2.69" | 7.00" | .063" | 4.12" | 2.88" | 2.75" | .82" | 5.50" | .75" | 4 |
3" | 4.25" | 3.07" | 2.69" | 7.50" | .063" | 5.00" | 3.50" | 2.75" | .88" | 6.00" | .75" | 4 |
4" | 5.31" | 4.03" | 2.94" | 9.00" | .063" | 6.19" | 4.50" | 3.00" | .88" | 7.50" | .75" | 8 |
5" | 6.44" | 5.05" | 3.44" | 10.00" | .063" | 7.31" | 5.56" | 3.50" | .88" | 8.50" | .88" | 8 |
3-1/2" | 4.81" | 3.55" | 2.75" | 8.50" | .063" | 5.50" | 4.00" | 2.81" | .88" | 7.00" | .75" | 8 |
6" | 7.56" | 6.07" | 3.44" | 11.00" | .063" | 8.50" | 6.63" | 3.50" | .94" | 9.50" | .88" | 8 |
8" | 9.69" | 7.98" | 3.94" | 13.50" | .063" | 10.62" | 8.63" | 4.00" | 1.06" | 11.75" | .88" | 8 |
22" | 24.25" | 21.25" | 5.82" | 29.50" | .063" | 25.25" | 22.00" | 5.88" | 1.75" | 27.25" | 1.38" | 20 |
10" | 12.00" | 10.02" | 3.94" | 16.00" | .063" | 12.75" | 10.75" | 4.00" | 1.13" | 14.25" | 1.00" | 12 |
12" | 14.38" | 12.00" | 4.44" | 19.00" | .063" | 15.00" | 12.75" | 4.50" | 1.19" | 17.00" | 1.00" | 12 |
16" | 18.00" | 15.25" | 4.94" | 23.50" | .063" | 18.50" | 16.00" | 5.00" | 1.38" | 21.25" | 1.12" | 16 |
18" | 19.88" | 17.25" | 5.44" | 25.00" | .063" | 21.00" | 18.00" | 5.50" | 1.50" | 22.75" | 1.25" | 16 |
14" | 15.75" | 13.25" | 4.94" | 21.00" | .063" | 16.25" | 14.00" | 5.00" | 1.32" | 18.75" | 1.12" | 12 |
20" | 22.00" | 19.25" | 5.63" | 27.50" | .063" | 23.00" | 20.00" | 5.69" | 1.63" | 25.00" | 1.25" | 20 |
24" | 26.12" | 23.25" | 5.94" | 32.00" | .063" | 27.25" | 24.00" | 6.00" | 1.82" | 29.50" | 1.38" | 20 |
Size in Inch | Size in mm | ISO Stud Size | RF Height | Outer Dia. | RF Dia. | Hole Size | PCD | No of Bolts | Bolt Size UNC | Flange Thickness | RF Stud Length | Weight in kg |
D | A | C | E | B | ||||||||
1/2 | 15 | M20 | 7 | 135 | 34.9 | 7/8 | 88.9 | 4 | 3/4 | 30.2 | 120 | 3.2 |
3/4 | 20 | M20 | 7 | 140 | 42.9 | 7/8 | 95.2 | 4 | 3/4 | 31.8 | 125 | 3.7 |
1 | 25 | M24 | 7 | 160 | 50.8 | 1 | 108 | 4 | 7/8 | 35 | 140 | 5 |
1 1/4 | 32 | M27 | 7 | 185 | 63.5 | 1 1/8 | 130.2 | 4 | 1 | 38.1 | 150 | 7.8 |
1 1/2 | 40 | M30 | 7 | 205 | 73 | 1 1/4 | 146 | 4 | 1 1/8 | 44.5 | 170 | 10.5 |
2 | 50 | M27 | 7 | 235 | 92.1 | 1 1/8 | 171.4 | 8 | 1 | 50.9 | 180 | 18 |
2 1/2 | 65 | M30 | 7 | 265 | 104.8 | 1 1/4 | 196.8 | 8 | 1 1/8 | 57.2 | 195 | 25.5 |
3 | 80 | M33 | 7 | 305 | 127 | 1 3/8 | 228.6 | 8 | 1 1/4 | 66.7 | 220 | 39 |
4 | 100 | M39 | 7 | 355 | 157.2 | 1 5/8 | 273 | 8 | 1 1/2 | 76.2 | 255 | 61.5 |
5 | 125 | M45 | 7 | 420 | 185.7 | 1 7/8 | 323.8 | 8 | 1 3/4 | 92.1 | 300 | 102 |
6 | 150 | M52 | 7 | 485 | 215.9 | 2 1/8 | 368.3 | 8 | 2 | 108 | 345 | 157 |
8 | 200 | M52 | 7 | 550 | 269.9 | 2 1/8 | 438.2 | 12 | 2 | 127 | 380 | 241 |
10 | 250 | M64 | 7 | 675 | 323.8 | 2 5/8 | 539.8 | 12 | 2 1/2 | 165.1 | 490 | 470 |
12 | 300 | M72 | 7 | 760 | 381 | 2 7/8 | 619.1 | 12 | 2 3/4 | 184.2 | 540 | 575 |
Size in Inch | Size in mm | No of Bolts | Outer Dia. | Hub OD | ISO Stud Size | Flange Length | RF Height | Flange Thick. | RF Dia. | PCD | Hole Size | Socket Bore | Weight in kg |
A | C | D | F | B | E | G | H | ||||||
1/2 | 15 | 4 | 90 | 30 | M14 | 14 | 2 | 9.6 | 34.9 | 60.3 | 5/8 | 22.2 | 0.8 |
1 | 25 | 4 | 110 | 49 | M14 | 16 | 2 | 12.7 | 50.8 | 79.4 | 5/8 | 34.5 | 0.9 |
3/4 | 20 | 4 | 100 | 38 | M14 | 14 | 2 | 11.2 | 42.9 | 69.9 | 5/8 | 27.7 | 0.9 |
1 1/4 | 32 | 4 | 115 | 59 | M14 | 19 | 2 | 14.3 | 63.5 | 88.9 | 5/8 | 43.2 | 1.4 |
2 | 50 | 4 | 150 | 78 | M16 | 24 | 2 | 17.5 | 92.1 | 120.7 | 3/4 | 61.9 | 2.3 |
1 1/2 | 40 | 4 | 125 | 65 | M14 | 21 | 2 | 15.9 | 73 | 98.4 | 5/8 | 49.5 | 1.4 |
2 1/2 | 65 | 4 | 180 | 90 | M16 | 27 | 2 | 20.7 | 104.8 | 139.7 | 3/4 | 74.6 | 3.2 |
3 | 80 | 4 | 190 | 108 | M16 | 29 | 2 | 22.3 | 127 | 152.4 | 3/4 | 90.7 | 3.7 |
4 | 100 | 8 | 230 | 135 | M16 | 32 | 2 | 22.3 | 157.2 | 190.5 | 3/4 | 116.1 | 5.9 |
3 1/2 | 90 | 8 | 215 | 122 | M16 | 30 | 2 | 22.3 | 139.7 | 177.8 | 3/4 | 103.4 | 5 |
5 | 125 | 8 | 255 | 164 | M20 | 35 | 2 | 22.3 | 185.7 | 215.9 | 7/8 | 143.8 | 6.8 |
8 | 200 | 8 | 345 | 246 | M20 | 43 | 2 | 27 | 269.9 | 298.5 | 7/8 | 221.5 | 13.7 |
10 | 250 | 12 | 405 | 305 | M24 | 48 | 2 | 28.6 | 323.8 | 362 | 1 | 276.2 | 19.5 |
6 | 150 | 8 | 280 | 192 | M20 | 38 | 2 | 23.9 | 215.9 | 241.3 | 7/8 | 170.7 | 8.6 |
12 | 300 | 12 | 485 | 365 | M24 | 54 | 2 | 30.2 | 381 | 431.8 | 1 | 327 | 29 |
24 | 600 | 20 | 815 | 663 | M33 | 81 | 2 | 46.1 | 692.2 | 749.3 | 1 3/8 | 616 | 100 |
16 | 400 | 16 | 595 | 457 | M27 | 62 | 2 | 35 | 469.9 | 539.8 | 1 1/8 | 410.5 | 54 |
18 | 450 | 16 | 635 | 505 | M30 | 67 | 2 | 38.1 | 533.4 | 577.9 | 1 1/4 | 461.8 | 59 |
14 | 350 | 12 | 535 | 400 | M27 | 56 | 2 | 33.4 | 412.8 | 476.3 | 1 1/8 | 359.2 | 41 |
20 | 500 | 20 | 700 | 559 | M30 | 71 | 2 | 41.3 | 584.2 | 635 | 1 1/4 | 513.1 | 75 |
ASTM A182 Grade F9 Flanges Price Per Piece in India | ASTM A182 F9 Flanges Price in INR | SA182 F9 Flanges Price in UAE Dirham | ASME SA182 F9 Flange Price in USD |
SORF FLANGE DN25 SA182 F9 Per Unit | 2,417 | UAE Dirham 117.46 | $31.98 |
4inch ASTM A182 F9 Steel Blind Flange Per Unit | 3401.05 | UAE Dirham 165.28 | $45 |
ASTM A182 F9 Steel Flange Per kg | 642.42 | UAE Dirham 31.22 | $8.50 |
Petromet Flange Inc is a ASTM A182 F9 Flange Manufacturer in India According to ASME B16.5 Standards. SA182 F9 Cl1 Forged Flanges Provides in a Variety of Industry Applications. This is the estimated cost of F9 Alloy Steel Pipe Flanges in India.
Temperature °F | Class 150 | Class 600 | Class 1500 | Class 400 | Class 900 | Class 300 | Class 2500 |
-20 to 100 | 275 | 1440 | 3600 | 960 | 2160 | 720 | 6000 |
300 | 205 | 1080 | 2700 | 720 | 1620 | 540 | 4500 |
200 | 230 | 1200 | 3000 | 800 | 1800 | 600 | 5000 |
400 | 190 | 995 | 2485 | 660 | 1490 | 495 | 4140 |
600 | 140 | 875 | 2185 | 580 | 1310 | 435 | 3640 |
650 | 125 | 860 | 2150 | 575 | 1290 | 430 | 3580 |
500 | 170 | 930 | 2330 | 620 | 1395 | 465 | 3880 |
700 | 110 | 850 | 2125 | 565 | 1275 | 425 | 3540 |
750 | 95 | 830 | 2075 | 555 | 1245 | 415 | 3460 |
850 | 65 | 790 | 1980 | 530 | 1190 | 395 | 3300 |
800 | 80 | 805 | 2015 | 540 | 1210 | 405 | 3360 |
900 | 50 | 780 | 1945 | 520 | 1165 | 390 | 3240 |
950 | 35 | 765 | 1910 | 510 | 1145 | 380 | 3180 |
1000 | 20 | 640 | 1605 | 430 | 965 | 320 | 2675 |
1100 | 20 | 515 | 1285 | 345 | 770 | 255 | 2145 |
1150 | 20 | 400 | 995 | 265 | 595 | 200 | 1655 |
1050 | 20 | 615 | 1545 | 410 | 925 | 310 | 2570 |
1200 | 20 | 310 | 770 | 205 | 465 | 155 | 1285 |
1250 | 20 | 225 | 565 | 150 | 340 | 115 | 945 |
1300 | 20 | 170 | 430 | 115 | 255 | 85 | 715 |
1400 | 20 | 95 | 240 | 65 | 145 | 50 | 400 |
1350 | 20 | 125 | 310 | 80 | 185 | 60 | 515 |
1450 | 15 | 70 | 170 | 45 | 105 | 35 | 285 |
1500 | 10 | 55 | 135 | 35 | 80 | 25 | 230 |
NPS (Nominal Pipe Size) | Loose (Lap Joint) | NPT (Threaded) | SORF (Slip On) | BLRF (Blind) | SWRF (Socket Weld) | WRNR (Weld Neck) |
---|---|---|---|---|---|---|
½ | 1 | 1 | 1 | 2 | 2 | 2 |
1 | 2 | 2 | 2 | 2 | 2 | 3 |
1¼ | 3 | 3 | 3 | 3 | 3 | 3 |
¾ | 2 | 2 | 2 | 2 | 2 | 2 |
1½ | 3 | 3 | 3 | 4 | 3 | 4 |
2½ | 8 | 8 | 8 | 7 | 8 | 10 |
2 | 5 | 5 | 5 | 5 | 5 | 6 |
3 | 9 | 9 | 9 | 9 | 9 | 11.5 |
4 | 13 | 13 | 13 | 17 | 13 | 16.5 |
3½ | 11 | 12 | 11 | 13 | 11 | 12 |
5 | 15 | 15 | 15 | 20 | 15 | 21 |
8 | 30 | 30 | 30 | 47 | 30 | 42 |
6 | 19 | 19 | 19 | 27 | 19 | 26 |
10 | 43 | 43 | 43 | 70 | 43 | 54 |
24 | 275 | 220 | 220 | 430 | 220 | 268 |
14 | 105 | 90 | 90 | 140 | 90 | 114 |
12 | 64 | 64 | 64 | 123 | 64 | 88 |
16 | 140 | 98 | 106 | 180 | 98 | 140 |
20 | 195 | 165 | 165 | 285 | 165 | 197 |
18 | 160 | 130 | 130 | 220 | 130 | 165 |
22 | 245 | 185 | 185 | 355 | 185 | 225 |
Nom Pipe Size | OD | Sch 10 | Sch 20 | Sch 30 | STD Wall | Sch 40 | Sch 60 | EXT Hvy | Sch 80 | Sch 100 | Sch 120 | Sch 140 | Sch 160 | XX Hvy |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
½ | 0.84 | 0.083 | 0.109 | 0.109 | 0.147 | 0.147 | 0.188 | 0.294 | ||||||
¾ | 1.05 | 0.083 | 0.113 | 0.113 | 0.154 | 0.154 | 0.219 | 0.308 | ||||||
1 | 1.315 | 0.109 | 0.133 | 0.133 | 0.179 | 0.179 | 0.25 | 0.358 | ||||||
1 ¼ | 1.66 | 0.109 | 0.14 | 0.14 | 0.191 | 0.191 | 0.25 | 0.382 | ||||||
1 ½ | 1.9 | 0.109 | 0.145 | 0.145 | 0.2 | 0.2 | 0.281 | 0.4 | ||||||
2 | 2.375 | 0.109 | 0.154 | 0.154 | 0.218 | 0.218 | 0.344 | 0.436 | ||||||
2 ½ | 2.875 | 0.12 | 0.203 | 0.203 | 0.276 | 0.276 | 0.375 | 0.552 | ||||||
3 | 3.5 | 0.12 | 0.216 | 0.216 | 0.3 | 0.3 | 0.438 | 0.6 | ||||||
3 ½ | 4 | 0.12 | 0.226 | 0.226 | 0.318 | 0.318 | 0.636 | |||||||
4 | 4.5 | 0.12 | 0.237 | 0.237 | 0.337 | 0.337 | 0.438 | 0.531 | 0.674 | |||||
5 | 5.563 | 0.134 | 0.258 | 0.258 | 0.375 | 0.375 | 0.5 | 0.625 | 0.75 | |||||
6 | 6.625 | 0.134 | 0.28 | 0.28 | 0.432 | 0.432 | 0.562 | 0.719 | 0.864 | |||||
8 | 8.625 | 0.148 | 0.25 | 0.277 | 0.322 | 0.322 | 0.406 | 0.5 | 0.5 | 0.594 | 0.719 | 0.812 | 0.906 | 0.875 |
10 | 10.75 | 0.165 | 0.25 | 0.307 | 0.365 | 0.365 | 0.5 | 0.5 | 0.594 | 0.719 | 0.844 | 1 | 1.125 | 1 |
12 | 12.75 | 0.18 | 0.25 | 0.33 | 0.375 | 0.406 | 0.562 | 0.5 | 0.688 | 0.844 | 1 | 1.125 | 1.312 | 1 |
14 | 14 | 0.25 | 0.312 | 0.375 | 0.375 | 0.438 | 0.594 | 0.5 | 0.75 | 0.938 | 1.094 | 1.25 | 1.406 | |
16 | 16 | 0.25 | 0.312 | 0.375 | 0.375 | 0.5 | 0.656 | 0.5 | 0.844 | 1.031 | 1.219 | 1.438 | 1.594 | |
18 | 18 | 0.25 | 0.312 | 0.438 | 0.375 | 0.562 | 0.75 | 0.5 | 0.938 | 1.156 | 1.375 | 1.562 | 1.781 | |
20 | 20 | 0.25 | 0.375 | 0.5 | 0.375 | 0.594 | 0.812 | 0.5 | 1.031 | 1.281 | 1.5 | 1.75 | 1.969 | |
22 | 22 | 0.25 | 0.375 | 0.5 | ||||||||||
24 | 24 | 0.25 | 0.375 | 0.562 | 0.375 | 0.688 | 0.969 | 0.5 | 1.219 | 1.531 | 1.812 | 2.062 | 2.344 | |
26 | 26 | 0.375 | 0.5 | |||||||||||
30 | 30 | 0.312 | 0.5 | 0.625 | 0.375 | 0.5 | ||||||||
36 | 36 | 0.312 | 0.5 | 0.625 | 0.375 | 0.75 | 0.5 | |||||||
40 | 40 | 0.375 | 0.5 | |||||||||||
42 | 42 | 0.375 | 0.5 | |||||||||||
48 | 48 | 0.375 | 0.5 |
Grade | Carbon | Chromium | Silicone | Phosphorus | Sulfur | Manganese | Molybdenum |
Alloy Steel F9 | 0.15 max | 8-10 | 0.5-1.0 | 0.03 | 0.03 | 0.3-0.6 | 0.9-1.1 |
Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
380 | 585 | 20 % |
STANDARD | DIN WERKSTOFF NR. | UNS | DIN |
Alloy Steel F9 | 1.7386 | K90941 | X 12 CrMo 9 1 |
Property | Temperature | Value |
---|---|---|
Coefficient of thermal expansion | 23.0 °C | 1.1E-5 - 1.4E-5 1/K |
Melting point | 1382 - 1529 °C | |
Specific heat capacity | 23.0 °C | 448 - 502 J/(kg·K) |
Thermal conductivity | 23.0 °C | 36 - 43 W/(m·K) |
15 NB ASTM A182 Gr F9 Slip On Flange
SA182 F9 SWRF Flanges
ASTM A182 Gr F9 Nipoflange Flanges
150 LBS SA182 Grade F9 Tongue & Groove Flange
ASME SA182 F9 WNRF Flange
900 LBS ASTM A182 Grade F9 Lapped Joint Flange
ASTM A182 Gr F9 Threaded Flange
2500 LBS SA182 Gr F9 Girth Flanges
Alloy Steel F9 Spectacle Blind Flange
A182 Gr F9 SORF Flanges
ASTM A182 Gr F9 Reducing Flanges
600 LBS ASME SA182 F9 Steel Weld Neck Flange
ASTM A182 F9 Blind Flange
5000 NB A182 Grade F9 Socket Weld Flange
Alloy Steel F9 BLRF Flanges
1500 LBS A182 F9 Orifice Flanges
ASTM A182 F9 Ring Joint Flange
300 LBS ASTM A182 Grade F9 Screwed Flange
ASME SA182 F9 Long Weld Neck Flange
ASTM A182 Gr F9 Expander Flanges
A182 F9 Cl2 Blind Flange
F9 Alloy Steel Pipe Flanges
A182 F9 Class 2 Flange
SA182 F9 Cl1 Forged Flanges
Density | 7.8 - 7.9 g/cm³ |