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Nizar Sheetsandplates is a reputable manufacturer and supplier located in Amman, Jordan, specializing in high-quality Stainless Steel 321H Angles designed for high-temperature, structural, and industrial applications. Renowned for their precision manufacturing, durability, and commitment to customer service, the company guarantees that each angle adheres to strict international quality standards. With state-of-the-art fabrication facilities and rigorous quality control measures, Nizar Sheetsandplates produces angles that boast excellent dimensional accuracy, a superior surface finish, and long-lasting performance. Their technical know-how, prompt delivery, and competitive pricing have made them a go-to supplier for the petrochemical, power generation, aerospace, and engineering sectors throughout Jordan and the Middle East.
Stainless steel 321H angle is a high carbon content alloy, containing mainly chromium (17-19%), nickel (9-12%) and titanium, which increases its strength at high temperatures It exhibits excellent mechanical properties , with 515 MPa tensile strength and 205 MPa yield strength and good elongation properties especially in high-temperature environments For resistance oxidation, creep force and intergranular corrosion. Their durability, ease of construction, and ability to maintain structural integrity make them ideal for heat exchangers, boilers, and other high-pressure applications
Specifications : ASTM A276, ASTM A479 / ASME SA276, ASME SA479
Angle Size Range : 20 x 20 mm to 100 x 100 mm
Angles Thickness : 3 to 12 mm (depending on size)
Channel Size Range : Base: 80 to 150 mm; Side: 40 to 75 mm
Channel Thickness : 5 to 6 mm (depending on size)
Length : 3MTR, 4MTR, 5MTR, 6MTR, or Custom Cut Sizes
| % | Cr | Ni | C | Si | Mn | P | S | N | Ti | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| 321 | min:17.0 max:19.0 | min: 9.0 max:12.0 | max:0.08 | max:0.75 | max:2.0 | max:0.045 | max:0.03 | max:0.10 | min:5*(C+N) max:0.70 | Balance |
| 321H | min:17.0 max:19.0 | min: 9.0 max:12.0 | min:0.04 max:0.10 | min:18.0 max:20.0 | max:2.0 | max:0.045 | max:0.03 | max:0.10 | min:5*(C+N) max:0.70 | Balance |
| Grade | Tensile Strength ksi (min.) | Yield Strength 0.2% Offset ksi (min.) | Elongation – % in 50 mm (min.) | Hardness (Brinell) MAX |
|---|---|---|---|---|
| 321/321H | 75 | 30 | 40 | 217 |
| Denstiy lbm/in3 | Coefficient of Thermal Expansion (min/in)-°F | Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | Modules of Elasticity (annealed)2-psi | |
|---|---|---|---|---|---|
| at 68 °F | at 68 – 212°F | at 68 – 1832°F | at 200°F | at 32 – 212°F | in tension (E) |
| 0.286 | 9.2 | 20.5 | 9.3 | 0.12 | 28 x 106 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Stainless Steel 321H Angles are crafted from a titanium-stabilized austenitic stainless steel that contains about 17–19% chromium and 9–13% nickel, along with a higher carbon content to enhance high-temperature strength. The addition of titanium helps prevent carbide precipitation during welding, ensuring resistance to intergranular corrosion. SS 321H is known for its excellent tensile and yield strength, superior creep resistance, and remarkable stability at elevated temperatures. It also provides strong oxidation resistance, good formability, and reliable weldability, making it ideal for components that face prolonged heat and corrosive environments.
The stainless steel 321H angle offers excellent advantages due to its high carbon content, especially increased resistance to creep and stress rupture at high temperatures Its titanium stabilizer prevents carbide precipitation, improving corrosion resistance at high temperatures . . . . This surface provides outstanding strength, durability and oxidation resistance up to 870°C, making it ideal for heat exchangers, chemical processing and furnace components And power generation more, its ease of manufacture and ability to withstand thermal cycling without losing strength make it the preferred choice for demanding industrial applications. It also retains technology.
| THICKNESS | ||||||
|---|---|---|---|---|---|---|
| Size(mm) | 3 mm | 4 mm | 5 mm | 6 mm | 8 mm | 10 mm |
| 25×25 | 1.13 | 1.47 | 1.80 | 2.11 | 2.69 | — |
| 30×30 | 1.37 | 1.79 | 2.20 | 2.59 | 3.33 | — |
| 32×32 | 1.46 | 1.92 | 2.20 | 2.59 | 3.33 | — |
| 35×35 | 1.61 | 2.11 | 2.60 | 3.07 | 3.97 | — |
| 38×38 | 1.75 | 2.30 | 2.84 | 3.36 | 4.35 | — |
| 40×40 | 1.85 | 2.43 | 3.00 | 3.55 | 4.61 | — |
| 45×45 | — | 2.75 | 3.40 | 4.03 | 5.25 | — |
| 50×50 | — | — | 3.80 | 4.51 | 5.89 | 7.20 |
| 60×60 | — | — | 4.60 | 5.47 | 7.17 | 8.80 |
| 63×63 | — | — | 4.84 | 5.76 | 7.55 | 9.28 |
| 65×65 | — | — | 5.00 | 5.95 | 7.81 | 9.60 |
| 70×70 | — | — | — | 6.43 | 8.45 | 10.40 |
| 75×75 | — | — | — | 6.91 | 9.09 | 11.20 |
| 80×80 | — | — | — | 7.39 | 9.73 | 12.00 |
| 90×90 | — | — | — | 8.35 | 11.01 | 13.60 |
| 100×100 | — | — | — | 9.31 | 12.29 | 15.20 |
The Stainless Steel 321H Angle is widely used in hot environments due to its excellent corrosion resistance, high corrosion resistance, and high structural strength. Ideal for applications in the chemical industry, petrochemical plants and oil refineries where exposure to corrosive atmosphere and high temperatures is common this alloy is also used in exhaust manifolds, thermal oxidizers and heat exchangers. Furthermore, its durability and oxidation resistance make it suitable for aerospace, power generation and furnace applications, ensuring its reliability under harsh operating conditions.
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