MS Fittings
What are MS Fittings?
Mild Steel (MS) Fittings are essential components used in pipelines, structural fabrication, and industrial projects to connect, extend, or terminate pipes and tubes. Manufactured from high-strength mild steel, these fittings are valued for their weldability, durability, and cost-effectiveness.
Asiad Steel Industries supplies precision-engineered MS Pipe Fittings in compliance with IS, ASTM, and other international standards, making them suitable for oil & gas, construction, water supply, chemical, and general engineering applications.
Key Features
High Strength
Performance
Durable
Construction
Easy Fabrication
& Installation
Wide
Compatibility
Smooth
Surface Finish
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Product Types | Included Categories | Elbows, Tees, Reducers, Unions, Couplings, Nipples, Sockets, Caps |
| Size Range | Fittings | ½” NB to 48” NB (custom sizes available) |
| Wall Thickness | Options | Sch. 20, Sch. 40, Sch. 80, Sch. 160, XXS |
| Grades & Standards | Material | IS 2062, ASTM A234 WPB, BS & DIN equivalents |
| Manufacturing Method | Process | Forged, Butt-Welded, Socket Weld, Threaded |
| Surface Finish | Options | Black (as rolled), Galvanized, Painted, Pickled & Oiled |
| Mechanical Properties | Yield Strength | 240 – 350 MPa |
| Tensile Strength | 410 – 600 MPa | |
| Elongation | 20% minimum | |
| Testing & Inspection | NDT | UT, RT, MPI |
| Destructive Tests | Tensile, Impact, Hardness, Hydrostatic |
Dimensions
| Fitting Type | Size Range (NB) | Wall Thickness (mm) | Length / Radius | Weight (kg/pc) | Tolerances |
|---|---|---|---|---|---|
| MS Elbow (90°) | ½” – 48” | 2.5 – 40 | Short / Long Radius | 0.1 – 120 | ±5% |
| MS Tee (Equal/Unequal) | ½” – 48” | 2.5 – 40 | Branch as per size | 0.2 – 150 | ±5% |
| MS Reducer | ½” – 48” | 2.5 – 40 | Concentric / Eccentric | 0.15 – 130 | ±5% |
| MS Union | ½” – 6” | 2 – 20 | Standard | 0.05 – 5 | ±5% |
| MS Coupling | ½” – 12” | 2 – 20 | Half / Full | 0.05 – 10 | ±5% |
| MS Nipple | ½” – 12” | 2 – 20 | As required | 0.05 – 5 | ±5% |
Chemical Composition
| Element | IS 1239 | IS 3589 | ASTM A234 WPB | ASTM A105 |
|---|---|---|---|---|
| Carbon (C) | ≤ 0.20 | ≤ 0.20 | ≤ 0.30 | ≤ 0.35 |
| Manganese (Mn) | ≤ 1.30 | ≤ 1.30 | 0.29 – 1.06 | 0.60 – 1.05 |
| Silicon (Si) | ≤ 0.10 | ≤ 0.10 | ≤ 0.40 | ≤ 0.35 |
| Phosphorus (P) | ≤ 0.040 | ≤ 0.040 | ≤ 0.050 | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 | ≤ 0.040 | ≤ 0.058 | ≤ 0.040 |
| Iron (Fe) | Balance | Balance | Balance | Balance |
Do you have questions?
1. What is the difference between Butt-Weld and Socket-Weld MS Fittings?
Why are MS Pipe Fittings preferred over other materials?
Can MS Fittings be used for high-pressure applications?
Are MS Pipe Fittings available with galvanization?
