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Pathan Durgadevi Udyan, Ground Floor, 25 Plot No 74/80, Patra Chawl, Maruti , Mandir Marg, Second Street, Girgaon, Mumbai, Maharashtra 400004Do you want a high-performing ASTM A105 for carbon steel forged fittings, flanges, valves, and piping components? If yes then, look no further because we at Tubotech, a leading piping and tubing manufacturer in India are here to supply for your business high-quality ASTM A105 carbon steel.
We have engineered ASTM A105 components with ‘Precision’ so that they deliver superior performance, dimensional accuracy, and long service life in hostile environments. Some of the products we provide include forged flanges, threaded/socket weld fittings, and custom-engineered parts.
Above all, we at Tubotech, one of the best piping and tubing manufacturers in India, ensure that we deliver to you ASTM A105 that perform and also last long…very long.
Like most piping and tubing components there are a number of specifications about ASTM A105 that you need to understand. They are given in the table below:
| Property | Details |
|---|---|
| Standard | ASTM A105 / A105M |
| Product Type | Carbon Steel Forgings for Piping Applications |
| Forms Supplied | Flanges, Forged Fittings, Valves, Pipe Components |
| Manufacturing Process | Open die forging, closed die forging, heat treatment (optional) |
| Pressure Ratings | Class 150 to Class 2500 (ASME B16.5) |
| Size Range | ½" to 48" (flanges), up to 4" (fittings, per ASME B16.11) |
| Heat Treatment | Normalizing, Quenching & Tempering (if specified) |
| Hardness Limit | ≤ 187 HBW (for flanges ≥ NPS 4, per ASTM limits) |
| Service Temperature | Suitable for ambient to moderate high temperatures |
| Standards Compatible | ASME B16.5, B16.11, B16.34, B16.47, MSS-SP-44, API 6A, etc. |
| Surface Finish | Black (oiled), Galvanized, Shot blasted, or Machined (as required) |
The chemical contents and its percentage in ASTM A105 are given in the table below:
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.35 |
| Manganese (Mn) | 0.60 – 1.05 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
| Silicon (Si) | 0.10 – 0.35 |
| Copper (Cu) | ≤ 0.40 (if specified for corrosion resistance) |
| Nickel (Ni) | ≤ 0.40 (optional) |
| Chromium (Cr) | ≤ 0.30 (optional) |
| Molybdenum (Mo) | ≤ 0.12 (optional) |
| Vanadium (V) | ≤ 0.08 (optional) |
The mechanical properties that gives ASTM A105 its ‘Strength’ and ‘Durability’ are given below in the table:
| Property | Value |
|---|---|
| Tensile Strength | ≥ 485 MPa (70,000 psi) |
| Yield Strength | ≥ 250 MPa (36,000 psi) |
| Elongation (in 2″) | ≥ 22% |
| Reduction of Area | ≥ 30% |
| Hardness | ≤ 187 HB (Brinell), or ≤ 91 HRB |
| Impact Toughness | Not required unless specified by client |
| Test Temperature | Room temperature (unless low-temp service is specified) |
These fittings are crucial in ensuring smooth, dependable, and ordinary fluid and gas waft at some stage in various high-stakes programs.
Typically, ASTM A105 is available in a few product types that you need to understand. They are given below:
1. Falanges:
A few subtypes include the following:
2. Forged Fittings:
A few subtypes include the following:
3. Valves and Valve Components:
There are few subtypes. They are given as below:
4. Custom Forged Components:
A few subtypes are given below:
Based on the types of ASTM A105 there are various sizes available. They are given in the table below:
1. Forged Flanges:
| Type | Size Range (NPS) | Pressure Ratings |
|---|---|---|
| Weld Neck | ½” to 48″ | Class 150 to 2500 |
| Slip-On | ½” to 48″ | Class 150 to 900 |
| Blind | ½” to 48″ | Class 150 to 2500 |
| Threaded | ½” to 4″ | Class 150 to 600 |
| Socket Weld | ½” to 4″ | Class 150 to 900 |
| Lap Joint | ½” to 24″ | Class 150 to 900 |
2. Forged Fittings:
| Type | Size Range (NPS) | Pressure Classes |
|---|---|---|
| Elbows, Tees | ⅛” to 4″ | 2000 / 3000 / 6000 / 9000 lbs |
| Couplings | ⅛” to 4″ | 3000 / 6000 lbs |
| Caps | ⅛” to 4″ | 3000 / 6000 lbs |
| Unions | ½” to 2″ | 3000 / 6000 lbs |
3. Custom Forged Components:
| Type | Size Range | Notes |
|---|---|---|
| Rings / Discs | Up to 1500 mm diameter | Machined to customer specs |
| Blocks / Cylinders | As per requirement | Used for valve bodies, heavy-duty fittings |
Are you wondering about the weights of a couple of major ASTM A105 components? If yes, then please look into the table below:
1. Weld Neck Flanges:
| Size (NPS) | Class 150 | Class 300 | Class 600 | Class 900 |
|---|---|---|---|---|
| ½” | 1.3 | 1.6 | 2.3 | 3.0 |
| 1″ | 2.7 | 3.2 | 4.9 | 6.8 |
| 2″ | 5.8 | 6.8 | 10.5 | 14.5 |
| 4″ | 11.4 | 13.6 | 24.5 | 33.0 |
| 6″ | 18.0 | 22.5 | 43.0 | 58.0 |
| 8″ | 29.0 | 35.0 | 66.0 | 90.0 |
| 12″ | 66.0 | 85.0 | 140.0 | 180.0 |
2. Forged Fittings:
| Type | Size (NPS) | 3000# (kg) | 6000# (kg) |
|---|---|---|---|
| Elbow 90° | 1″ | 0.37 | 0.50 |
| Tee | 2″ | 1.80 | 2.80 |
| Coupling | 1½” | 0.90 | 1.30 |
| Cap | 2″ | 0.45 | 0.75 |
| Union | 1″ | 1.10 | 1.45 |
It is due to the ability of ASTM A105 to tolerate high pressure and moderate-to-high temperatures that they are used in a wide range of industries. They include:
At Tubotech, a top piping and tubing manufacturer in India apart from providing ASTM A105 components made using ‘Precision’ engineering, there are other reasons why you need to select us as your trusted piping and tubing supply partner. They are given below:
Choose Tubotech for your subsequent project concerning ASTM A105 Instrument Fittings and benefit from reliability and quality. Whether your requirement is small batch or bulk export, our technical institution is here to help you.
Tubotech delivers precision-engineered tubing, fittings, and fasteners with innovative solutions and customizable options. Trusted for quality and durability, we serve industries requiring reliable, high-performance piping and instrumentation products.