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Hashmi Sheets and Plates is a trusted manufacturer and supplier of Stainless Steel 321H Angle in Doha, Qatar, serving industries that operate in high-temperature and high-stress environments. We focus on delivering stainless steel products that provide strength, stability, and long-term reliability. Our Stainless Steel 321H Angles are supplied in accordance with international quality standards, ensuring consistent quality and dependable performance. With a customer-centric approach, technical expertise, and timely delivery, Hashmi Sheets and Plates supports critical industrial, construction, and engineering projects across Qatar.
Stainless Steel 321H Angle is a high-carbon version of grade 321, stabilized with titanium to prevent carbide precipitation at elevated temperatures. The higher carbon content improves strength and creep resistance in high-temperature service. Mechanically, it offers good tensile and yield strength, excellent toughness, and strong resistance to thermal fatigue. The alloy maintains structural integrity and corrosion resistance during prolonged exposure to heat.
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.
Hashmi Sheets and Plates based in Doha, Qatar, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.
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 |
Stainless Steel 321H Angle is widely used in applications requiring strength and stability at elevated temperatures. Common uses include heat exchangers, furnace components, exhaust systems, and structural supports in power generation and petrochemical plants. It is also applied in industrial processing equipment where resistance to thermal stress is essential. Its ability to maintain mechanical properties under continuous heat exposure makes Stainless Steel 321H Angle a dependable choice for long-term industrial and structural applications.
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