Weld Neck Flange As Per ASTM A105
- ASTM A105 Standard Specification for Carbon Steel Forgings for Piping Applications
Scope
ASTM A105 Standard Specification covers forged carbon steel piping components for ambient- and higher-temperature service in pressure systems. Included are flanges, fittings, valves, and similar parts ordered either to dimensions specified by the purchaser or to dimensional standards such as the MSS, ASME, and API specifications referenced in Section 2. Forgings made to this specification are limited to a maximum weight of 10000 lb [4540 kg]. Larger forgings may be ordered to Specification A266/A266M. Tube sheets and hollow cylindrical forgings for pressure vessel shells are not included within the scope of this specification. Although this specification covers some piping components machined from rolled bars and seamless tubular products, it does not cover raw materials produced in these product forms.
A weld neck flange is a type of pipe fitting that extends steel pipe, pipe fittings, and so on into the flange to connect to equipment or pipes using fillet welds. Its neck may transfer pipe stress, lowering the pressure at the flange's bottom, and it is suited for pipes operating at high or low temperatures as well as pipes subjected to high pressure. It is classified into flat-welded flanges with necks and butt-welded flanges with necks based on the welding method. ASTM A105 weld neck flanges According to the production standard ASTM A105, the flanges are made of carbon steel, which can withstand high temperatures and is an appropriate material for flange fabrication. TS can provide weld neck flanges at a reasonable price and of good quality. Our products come in a variety of sizes, and customers with such demands can contact us for a quote via email, Whatsapp, or other means.
Specification of ASTM A105 Weld Neck Flange
| Product Name | ASTM A105 Weld Neck Flange |
| Specifications | ASTM A105/ASME SA105 |
| Standard | ASME, ANSI, BS, DIN, EN, etc. |
| Material | Carbon Steel |
| Dimension | ANSI B16.5 |
| Flange Type | Weld Neck |
| Size | 1 1/2" |
| Schedule | SCH 20, SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, SCH STD, etc. |
| Class | 150# |
| Face Type | RF (Raised Face) |
| Payment Terms | T/T, L/C |
| Delivery Time | As per quantity required |
Chemical Composition (%) of ASTM A105 Weld Neck Flange
| CHEMICAL COMPOSITION (%) | |||||||||
| C, max | Mn | P, max | S, max | Si, max | Cr, max | Ni, max | Mo, max | Cu, max | V, max |
| 0.35 | 0.60-1.05 | 0.035 | 0.040 | 0.10-0.35 | 0.30 | 0.40 | 0.12 | 0.40 | 0.08 |
Mechanical Properties of ASTM A105 Weld Neck Flange
| MECHANICAL PROPERTIES | |||
| Tensile Strength, ksi [MPa], min | Yield Strength, ksi [MPa], min | Elongation (%), min | Hardness, max |
| 70 [485] | 36 [250] | 22 | 187 HB |
Dimensions of ASTM A105 Weld Neck Flange
Bore Diameter
Diameter Of RF Height Of RF
PCD
Weld Face 1/2 15 90 9.6 30 21.3 46 - 34.9 2 60.3 1.6 3/4 20 100 11.2 38 26.7 51 - 42.9 2 69.9 1.6 1 25 110 12.7 49 33.4 54 - 50.8 2 79.4 1.6 1 1/4 32 115 14.3 59 42.2 56 - 63.5 2 88.9 1.6 1 1/2 40 125 15.9 65 48.3 60 - 73 2 98.4 1.6 2 50 150 17.5 78 60.3 62 - 92.1 2 120.7 1.6 2 1/2 65 180 20.7 90 73 68 - 104.8 2 139.7 1.6 3 80 190 22.3 108 88.9 68 - 127 2 152.4 1.6 3 1/2 90 215 22.3 122 101.6 70 - 139.7 2 177.8 1.6 4 100 230 22.3 135 114.3 75 - 157.2 2 190.5 1.6 5 125 255 22.3 164 141.3 87 - 185.7 2 215.9 1.6 6 150 280 23.9 192 168.3 87 - 215.9 2 241.3 1.6 8 200 345 27 246 219.1 100 - 269.9 2 298.5 1.6 10 250 405 28.6 305 273 100 - 323.8 2 362 1.6 12 300 485 30.2 365 323.8 113 - 381 2 431.8 1.6 14 350 535 33.4 400 355.6 125 - 412.8 2 476.3 1.6 16 400 595 35 457 406.4 125 - 469.9 2 539.8 1.6 18 450 635 38.1 505 457.2 138 - 533.4 2 577.9 1.6 20 500 700 41.3 559 508 143 - 584.2 2 635 1.6 24 600 815 46.1 663 610 151 - 692.2 2 749.3 1.6