ASTM A105 Ball Valve
ASTM A105/A105N ball valves are made of forged carbon steel, for ambient- and higher-temperature service in pressure systems in various industries, such as oil and gas. ASTM A105/A105N has excellent strength, wear and tear, and higher mechanical properties.
For H2S sour service, Relia’s A105 and 105N ball valves fully conform to NACE MR0175 and MR0103/ISO 15156.
A105 and A105N have the same raw materials, same steel grades, but different heat treatment requirements; N means normalization heat treatment.
Availability: A105 Floating Ball Valves, A105 Trunnion Mounted Ball Valves, A105 Fully Welded Ball Valves
More Products: A105 Gate Valve, A105 Globe Valve, A105 Check Valve
A105/A105N Ball Valve Material Specifications
| Part Name | Body/Bonnet | Stem | Ball | Seat | Spring |
| Material | ASTM A105/A105N | A182 F6/F316 | A105+ENP/F316 | RPTFE,Nylon,Devlon, PEEK, TCC, STL etc. |
Inconel 725 |
A105/A105N Ball Valve Test Pressure
| Test Type | Test Fluid | Test Pressure (bar) | |||||
| Class 150 | Class 300 | Class 600 | Class 900 | Class 1500 | Class 2500 | ||
| Shell Test | Water | 29.4 | 77.7 | 153.2 | 229.8 | 383.0 | 638.3 |
| High Pressure Seat Test | Water | 21.6 | 56.3 | 112.3 | 168.5 | 280.9 | 468.1 |
| Low Pressure Seat Test | Air | 6 | 6 | 6 | 6 | 6 | 6 |
ASTM A105/A105N Chemical Requirements
| Element | C, max | Mn | P, max | S, max | Si | Cu, max | Ni, max | Cr, max | Mo, max | V, max |
| Composition,% | 0.35 | 0.60-1.05 | 0.035 | 0.040 | 0.10-0.35 | 0.40 | 0.40 | 0.30 | 0.12 | 0.08 |
NOTE 1—For each reduction of 0.01 % above the specified carbon maximum (0.35 %), an increase of 0.06 % manganese above the specified maximum (1.05 %) will be permitted up to a maximum of 1.65 %.
A -The sum of copper, nickel, chromium, molybdenum and vanadium shall not exceed 1.00 %.
B -The sum of chromium and molybdenum shall not exceed 0.32 %.
ASTM A105/A105N Mechanical Requirements
| ASTM | Tensile Requirements | ||||||
| Tensile Strength, min, ksi /MPa | Yield Strength, min, ksi /[MPa] | Elongation in 2 in. or 50 mm, % Basic minimum elongation for walls 5 ⁄ 1 6 in. [7.9 mm] and over in thickness, strip tests. | Reduction of Area, min, % | Hardness, HBW, max | |||
| ASTM A105 | 70 ksi | 485 MPa | 36 ksi | 250 MPa | 30 | 30 | 197 |
Note:
A -For small forgings, see 8.3.4.
B -Determined by either the 0.2 % offset method or the 0.5 % extension-under-load method.
C -See Table 3 for computed minimum values.
D -For round specimens only.
A105 Working Pressures
| Temperature, ℃ | Working Pressures by Class, bar | ||||||
| 150 | 300 | 600 | 900 | 1500 | 2500 | 4500 | |
| -29 to 38 | 19.6 | 51.1 | 102.1 | 153.2 | 255.3 | 425.5 | 765.9 |
| 50 | 19.2 | 50.1 | 100.2 | 150.4 | 250.6 | 417.7 | 751.9 |
| 100 | 17.7 | 46.6 | 93.2 | 139.8 | 233.0 | 388.3 | 699.0 |
| 150 | 15.8 | 45.1 | 90.2 | 135.2 | 225.4 | 375.6 | 676.1 |
| 200 | 13.8 | 43.8 | 87.6 | 131.4 | 219.0 | 365.0 | 657.0 |
| 250 | 12.1 | 41.9 | 83.9 | 125.8 | 209.7 | 349.5 | 629.1 |
| 300 | 10.2 | 39.8 | 79.6 | 119.5 | 199.1 | 331.8 | 597.3 |
| 325 | 9.3 | 38.7 | 77.4 | 116.1 | 193.6 | 322.6 | 580.7 |
| 350 | 8.4 | 37.6 | 75.1 | 112.7 | 187.8 | 313.0 | 563.5 |
| 375 | 7.4 | 36.4 | 72.7 | 109.1 | 181.8 | 303.1 | 545.5 |
| 400 | 6.5 | 34.7 | 69.4 | 104.2 | 173.6 | 289.3 | 520.8 |
| 425 | 5.5 | 28.8 | 57.5 | 86.3 | 143.8 | 239.7 | 431.5 |
| 450 | 4.6 | 23.0 | 46.0 | 69.0 | 115.0 | 191.7 | 345.1 |
| 475 | 3.7 | 17.4 | 34.9 | 52.3 | 87.2 | 145.3 | 261.5 |
| 500 | 2.8 | 11.8 | 23.5 | 35.3 | 58.8 | 97.9 | 176.3 |
| 538 | 1.4 | 5.9 | 11.8 | 17.7 | 29.5 | 49.2 | 88.6 |
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Valve type (ball, gate, globe, check etc.), valve size, pressure class, valve material, and end connection (flanged, butt welding etc.)
