Stainless Steel Pipe Fittings Manufacturer, Supplier & Stockist
Kalpataru Piping Solution is a reputed manufacturer and supplier of premium stainless steel pipe fittings, and its products have passed through the test of time in terms of meeting the challenging demands of industries. We manufacture and design SS pipe fittings in a large selection of sizes, schedules and specifications that fit different types of piping. We are offering our product range in the popular stainless steel grades that include 304, 304L, 304H, 316, 316L, 316H, 321, 321H, 310, 310S, 347, and 904L that will provide compatibility with different working conditions.
Pipe fittings are an important part of piping systems since they are used to control, deflect and regulate the flow of fluids and gases. Directional changes can be necessary at different angles depending on the system design, so the different types of fittings can be used. Some typical fittings are 45-degree and 90-degree directional change elbows, flow distribution tees, and long radius bends, which guarantee a smooth flow with minimal pressure loss. A change in pipe diameter is aided by a reduction in fittings, resulting in an efficient flow. Cross fittings are commonly applied in the auxiliary systems like sprinkler lines, and concentric and eccentric reducers are taken depending on the alignment and flow requirements. Pipe caps are designed to safely end the pipelines and form safe points of arrival.
Stainless steel has perfect qualities of corrosion resistance, mechanical strength and durability, making it a good material in the production of butt weld fittings. Grades such as SS 316 and 316L have high levels of resistance to chlorides and acidic conditions, and low-carbon grades such as 304L and 316L reduce the chances of intergranular corrosion. Consequently, stainless steel pipe fittings from Kalpataru Piping Solution have found many applications in oil and gas, petrochemical, power generation, marine, water treatment and irrigation, construction and municipal infrastructure to allow safe and efficient transfer of liquids, gases, slurries and solids in high pressure and severe operating conditions.
SS Industrial Pipe Fittings Manufacturer in India, Stainless Steel Equal Tee, SS Seamless Butt Weld Fittings, ASME SA 403 SS Pipe Cap, Stainless Steel Eccentric Reducer, SS Pipe Elbow, ANSI B16.9 SS Welded Pipe Fittings, SS Concentric Reducer, Stainless Steel Buttweld 90 Deg. Elbow, SS Stub End, SS Pipe Bend.
Table of content
- Stainless Steel Pipe Fittings Material Grades
- Specification of Stainless Steel Pipe Fittings
- Types of Stainless Steel Pipe Fittings
- Chemical Composition of Stainless Steel Buttweld Pipe Fittings
- Mechanical Properties of ASTM A403 Stainless Steel Seamless Pipe Fittings
- ASME B16.9 Elbow Dimension Standards
- Applications of Stainless Steel Pipe Fittings
- People Ask About Nuts Manufacturer
Stainless Steel Pipe Fittings Material Grades
Specification of Stainless Steel Pipe Fittings
Category | Details |
Pipe Fittings Sizes | Welded Fittings: 1/2″ – 24″Seamless Fittings: 4″ – 72″Schedules: SCH 5 to SCH 160, XXS |
Bending Radius | 1D, 2D, 3D, 5D |
Manufacturing Methods | Forging, Rolling, Casting |
Fabrication Process | Seamless, Fabricated, Welded |
Standards | MSS-SP-43ANSI B16.9ASME B16.28 |
Surface Finish | Mill FinishPickledPolished |
Advantages | High Durability and StrengthExcellent Corrosion ResistanceLeak-Tight Joints |
Available Forms | ElbowTeeReducerCap |
Country of Origin | EuropeanIndianUSAJapaneseThailand |
Packaging Options | Wooden BoxesPalletsPlastic WrapBubble WrapCustom Packaging |
Documentation Provided | Third Party Inspection Report100% Radiography Test ReportRaw Material Test Certificate |
Testing Methods | HIC TestedUltrasonic TestingPMI (Positive Material Identification) |
Applications | Natural Gas DistributionCompressed Air SystemsIndustrial Gas Systems |
Key Benefits | Corrosion ResistanceDurability and StrengthChemical Resistance |
Types of Stainless Steel Pipe Fittings
Chemical Composition of Stainless Steel Buttweld Pipe Fittings
| Element | SS 304 (%) | SS 304N (%) | SS 304LN (%) |
| Carbon (C) | Max 0.08 | Max 0.08 | Max 0.035 |
| Chromium (Cr) | 18.0 – 20.0 | 18.0 – 20.0 | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 11.0 | 8.0 – 11.0 | 8.0 – 11.0 |
| Manganese (Mn) | Max 2.00 | Max 2.00 | Max 2.00 |
| Silicon (Si) | Max 0.75 | Max 0.75 | Max 0.75 |
| Phosphorus (P) | Max 0.040 | Max 0.040 | Max 0.040 |
| Sulfur (S) | Max 0.030 | Max 0.030 | Max 0.030 |
| Nitrogen (N) | — | 0.10 – 0.16 | 0.10 – 0.16 |
| Iron (Fe) | Balance | Balance | Balance |
Note: SS 304N and SS 304LN contain controlled nitrogen content for enhanced strength and improved mechanical performance, while SS 304LN also features lower carbon to reduce the risk of intergranular corrosion.
Mechanical Properties of ASTM A403 Stainless Steel Seamless Pipe Fittings
| Property | Typical Value |
| Density | 8.0 g/cm³ |
| Melting Temperature | Approx. 1400 °C (2550 °F) |
| Tensile Strength | 75,000 psi (515 MPa) |
| Yield Strength (0.2% Offset) | 30,000 psi (205 MPa) |
| Elongation at Break | 35% |
These mechanical characteristics indicate that ASTM A403 stainless steel seamless fittings offer a balanced combination of strength, ductility, and thermal stability, making them suitable for high-pressure and high-temperature piping applications across various industries.
ASME B16.9 Elbow Dimension Standards
DN | Equal Tee | 90° Elbow | 45° Elbow | 90° Elbow | 45° Elbow | Equal Tee | 90° Elbow | 45° Elbow | Equal Tee |
8 | 0.03 | 0.03 | 0.02 | 0.02 | 0.01 | 0.06 | 0.04 | 0.03 | 0.07 |
10 | 0.05 | 0.03 | 0.02 | 0.03 | 0.02 | 0.03 | 0.06 | 0.04 | 0.09 |
15 | 0.09 | 0.08 | 0.04 | 0.06 | 0.03 | 0.10 | 0.10 | 0.05 | 0.14 |
20 | 0.13 | 0.08 | 0.04 | 0.07 | 0.03 | 0.17 | 0.11 | 0.05 | 0.20 |
25 | 0.28 | 0.15 | 0.11 | 0.14 | 0.08 | 0.29 | 0.22 | 0.14 | 0.38 |
32 | 0.49 | 0.26 | 0.17 | 0.23 | 0.11 | 0.59 | 0.40 | 0.23 | 0.68 |
40 | 0.68 | 0.40 | 0.23 | 0.30 | 0.17 | 0.86 | 0.51 | 0.29 | 1.02 |
50 | 0.85 | 0.70 | 0.40 | 0.50 | 0.25 | 1.28 | 0.91 | 0.59 | 1.59 |
65 | 1.41 | 1.40 | 0.77 | 0.85 | 0.48 | 2.19 | 1.81 | 0.99 | 3.13 |
80 | 1.77 | 2.20 | 1.08 | 1.25 | 0.63 | 3.31 | 2.97 | 1.50 | 4.45 |
90 | 2.67 | 2.83 | 1.42 | 1.70 | 0.75 | 4.08 | 4.00 | 2.00 | 5.44 |
100 | 3.46 | 4.47 | 2.09 | 2.10 | 1.08 | 5.27 | 6.18 | 2.81 | 7.71 |
150 | 8.07 | 10.89 | 5.44 | 5.45 | 2.72 | 10.99 | 16.32 | 8.16 | 13.61 |
200 | 15.65 | 21.54 | 10.77 | 10.20 | 5.33 | 20.91 | 33.11 | 16.56 | 28.12 |
250 | 26.46 | 38.56 | 19.27 | 18.15 | 9.75 | 35.38 | 51.71 | 25.86 | 49.90 |
300 | 39.46 | 59.42 | 29.71 | 25.80 | 13.62 | 62.14 | 79.38 | 39.69 | 83.91 |
SS Buttweld Tee & Reducer Weight Chart
DN (mm) | Concentric Reducer | Reducing Tee | Concentric Reducer | Eccentric Reducer | Reducing Tee | Eccentric Reducer | Reducing Tee | Concentric Reducer | Eccentric Reducer |
40 × 25 | 0.19 | 0.76 | 0.34 | 0.34 | 0.90 | 0.19 | 0.60 | 0.26 | 0.26 |
50 × 25 | 0.28 | 1.10 | 0.54 | 0.54 | 1.37 | 0.28 | 0.73 | 0.40 | 0.40 |
50 × 40 | 0.31 | 1.15 | 0.59 | 0.59 | 1.43 | 0.31 | 0.76 | 0.45 | 0.45 |
80 × 50 | 0.55 | 2.91 | 1.79 | 1.79 | 3.91 | 0.55 | 1.56 | 1.00 | 1.00 |
100 × 50 | 0.78 | 4.48 | 1.95 | 1.95 | 6.55 | 0.78 | 2.94 | 1.50 | 1.50 |
100 × 80 | 0.87 | 4.64 | 2.33 | 2.33 | 6.79 | 0.87 | 3.04 | 1.74 | 1.74 |
150 × 80 | 1.82 | 9.68 | 5.51 | 5.51 | 11.57 | 1.82 | 6.86 | 3.95 | 3.95 |
150 × 100 | 1.96 | 11.94 | 5.96 | 5.96 | 11.97 | 1.96 | 7.10 | 4.07 | 4.07 |
200 × 100 | 3.01 | 17.98 | 9.23 | 9.23 | 24.18 | 3.01 | 13.46 | 6.55 | 6.55 |
200 × 150 | 3.19 | 18.82 | 10.12 | 10.12 | 25.31 | 3.19 | 14.08 | 6.74 | 6.74 |
Stainless Steel Pipe Fittings Schedule Chart
Pipe Size | Schedule 80 (inches) | Schedule 40 (inches) | Schedule 160 (inches) |
1/2″ | 0.147 | 0.109 | 0.218 |
3/4″ | 0.154 | 0.113 | 0.250 |
1″ | 0.179 | 0.140 | 0.300 |
1-1/4″ | 0.191 | 0.140 | 0.337 |
1-1/2″ | 0.200 | 0.145 | 0.350 |
2″ | 0.218 | 0.154 | 0.375 |
2-1/2″ | 0.276 | 0.203 | 0.400 |
3″ | 0.300 | 0.216 | 0.450 |
4″ | 0.337 | 0.237 | 0.500 |
5″ | 0.375 | 0.258 | 0.562 |
6″ | 0.432 | 0.280 | 0.625 |
8″ | 0.500 | 0.322 | 0.750 |
10″ | 0.500 | 0.365 | 0.875 |
12″ | 0.562 | 0.406 | 1.000 |
14″ | 0.625 | 0.437 | 1.125 |
16″ | 0.750 | 0.500 | 1.250 |
18″ | 0.812 | 0.562 | 1.375 |
20″ | 0.875 | 0.593 | 1.500 |
24″ | 1.000 | 0.687 | 1.750 |
Stainless Steel Buttweld Elbow Size Chart
Nominal Pipe Size (in) | OD (mm) | OD (in) | 90° Elbow LR C–F (in) | 90° Elbow SR C–F (in) | 45° Elbow LR C–F (in) | 180° Return Radius (in) | 180° Return C–C (in) | 180° Return B–F (in) |
1/2 | 21.3 | 0.840 | 1 1/2 | – | 5/8 | 2 | 1 7/8 | – |
3/4 | 26.7 | 1.050 | 1 1/8 | – | 7/16 | 2 1/4 | 1 11/16 | – |
1 | 33.4 | 1.315 | 1 1/2 | 1 | 7/8 | 3 | 2 3/16 | – |
1-1/4 | 42.2 | 1.660 | 1 7/8 | 1 1/4 | 1 | 3 3/4 | 2 3/4 | – |
1-1/2 | 48.3 | 1.900 | 2 1/4 | 1 1/2 | 1 1/8 | 4 1/2 | 3 1/4 | – |
2 | 60.3 | 2.375 | 3 | 2 | 1 3/8 | 4 | 6 | 4 3/16 |
2-1/2 | 73.0 | 2.875 | 3 3/4 | 2 1/2 | 1 3/4 | 5 | 7 1/2 | 5 3/16 |
3 | 88.9 | 3.500 | 4 1/2 | 3 | 2 | 6 | 9 | 6 1/4 |
3-1/2 | 101.6 | 4.000 | 5 1/4 | 3 1/2 | 2 1/4 | 7 | 10 1/2 | 7 1/4 |
4 | 114.3 | 4.500 | 6 | 4 | 2 1/2 | 8 | 12 | 8 1/4 |
5 | 141.3 | 5.563 | 7 1/2 | 5 | 3 1/8 | 10 | 15 | 10 5/16 |
6 | 168.3 | 6.625 | 9 | 6 | 3 3/4 | 12 | 18 | 12 5/16 |
8 | 219.1 | 8.625 | 12 | 8 | 5 | 12 | 24 | 16 5/16 |
10 | 273.1 | 10.750 | 15 | 10 | 6 1/4 | 15 | 30 | 20 3/8 |
12 | 323.9 | 12.750 | 18 | 12 | 7 1/2 | 18 | 36 | 24 3/8 |
ASME B16.9 Stainless Steel Fittings Size Chart
ASTM A403 Stainless Steel Elbows & 180° Returns
Nominal Pipe Size (in) | Outside Diameter (mm) | Outside Diameter (in) | 90° Elbow LR C–F (in) | 90° Elbow SR C–F (in) | 45° Elbow LR C–F (in) | 180° Return Radius (in) | 180° Return C–C (in) | 180° Return B–F (in) |
1/2 | 21.3 | 0.840 | 1 1/2 | – | 5/8 | 2 | 1 7/8 | – |
3/4 | 26.7 | 1.050 | 1 1/8 | – | 7/16 | 2 1/4 | 1 11/16 | – |
1 | 33.4 | 1.315 | 1 1/2 | 1 | 7/8 | 3 | 2 3/16 | – |
1 1/4 | 42.2 | 1.660 | 1 7/8 | 1 1/4 | 1 | 3 3/4 | 2 3/4 | – |
1 1/2 | 48.3 | 1.900 | 2 1/4 | 1 1/2 | 1 1/8 | 4 1/2 | 3 1/4 | – |
2 | 60.3 | 2.375 | 3 | 2 | 1 3/8 | 4 | 6 | 4 3/16 |
2 1/2 | 73.0 | 2.875 | 3 3/4 | 2 1/2 | 1 3/4 | 5 | 7 1/2 | 5 3/16 |
3 | 88.9 | 3.500 | 4 1/2 | 3 | 2 | 6 | 9 | 6 1/4 |
3 1/2 | 101.6 | 4.000 | 5 1/4 | 3 1/2 | 2 1/4 | 7 | 10 1/2 | 7 1/4 |
4 | 114.3 | 4.500 | 6 | 4 | 2 1/2 | 8 | 12 | 8 1/4 |
5 | 141.3 | 5.563 | 7 1/2 | 5 | 3 1/8 | 10 | 15 | 10 5/16 |
6 | 168.3 | 6.625 | 9 | 6 | 3 3/4 | 12 | 18 | 12 5/16 |
8 | 219.1 | 8.625 | 12 | 8 | 5 | 12 | 24 | 16 5/16 |
10 | 273.1 | 10.750 | 15 | 10 | 6 1/4 | 15 | 30 | 20 3/8 |
12 | 323.9 | 12.750 | 18 | 12 | 7 1/2 | 18 | 36 | 24 3/8 |
LR = Long Radius, SR = Short Radius, C–F = Center to Face, C–C = Center to Center, B–F = Back to Face
PED Approved Manufacturers of ASTM A403 Stainless Steel Pipe Fittings
| Stainless Steel 90 Deg Long Radius Elbow | Stainless Steel 90 Deg Short Radius Elbow |
| Stainless Steel 45 Deg Long Radius Elbow | Stainless Steel 45 Deg Short Radius Elbow |
| Stainless Steel 180 Deg Long Radius Elbow | Stainless Steel 180 Deg Short Radius Elbow |
| Stainless Steel Equal Tee | Stainless Steel Reducing Tee |
| Stainless Steel Concentric / Eccentric Reducer | Stainless Steel Cross |
| Stainless Steel Straight Cross | Stainless Steel Reducing Cross |
| Stainless Steel Concentric Reducer | Stainless Steel Eccentric Reducer |
| Stainless Steel Stub End | Stainless Steel End Cap / Pipe Cap |
| Stainless Steel Pipe Elbow | Stainless Steel Pipe Tee |
| Stainless Steel Pipe Cross | Stainless Steel Pipe Reducer |
| Stainless Steel Pipe End Cap | Stainless Steel Pipe Bends |
| Stainless Steel Lap Joint | IBR Approved Buttweld Fittings |
| Stainless Steel Piggable Bend | Stainless Steel Lateral Tee |
Applications of Stainless Steel Pipe Fittings
- Oil and gas pipelines
- Petrochemical and chemical plants
- Power generation and energy plants
- Marine and shipbuilding systems
- Water treatment and sewage systems
- Irrigation and agriculture pipelines
- Industrial compressed air and gas systems
- Construction and municipal infrastructure
- Food and beverage processing lines
- HVAC and ventilation piping systems
People Ask About Nuts Manufacturer
We supply SS pipe fittings in grades including 304, 304L, 304H, 316, 316L, 316H, 321, 321H, 310, 310S, 347, and 904L to suit various industrial applications.
Our range includes elbows (45° & 90°), tees, reducers (concentric & eccentric), long radius bends, cross fittings, pipe caps, stub ends, and pipe bends.
We offer both seamless and welded butt weld fittings, manufactured according to ASME, ANSI, and ASTM standards.
Our fittings are widely used in oil & gas, petrochemical, power plants, marine, water treatment, irrigation, construction, and other industrial sectors.
They provide excellent corrosion resistance, high durability, leak-tight joints, chemical resistance, low maintenance, and long service life under high pressure and extreme conditions.