
Stainless Steel 321H Round Bar Manufacturers in Mumbai
Ranging from about 0.04 to 0.1 meters in diameter, Stainless Steel 321H Round Bar are the higher carbon versions of SS 321. These, as earlier said, are meant to be excellent and strong against high temperatures. Its increased carbon content makes SS 321 H creep and stress rupture desirable for prolonged high temperatures. Industries requiring solid long-lasting heat-resistant stainless steel products tend to contact Stainless Steel 321H Round Bar Manufacturers in Mumbai to source materials that fit their product with required parameters.
SS 321H round bars have amazing resistance to oxidation and scaling even at high temperatures exposed to conditions. They are now being utilized widely in petrochemical, power generation, aerospace, and thermal processing installations, where it is a requirement to have mechanical strength, along with good resistance to corrosion. They prove to be really beneficial in thermal cycling without mechanical integrity loss.
Stainless Steel 321H Round Bar Suppliers in India
Many industries are looking for Stainless Steel 321H Round Bar Suppliers in India, focusing on quality, precision, and global standards compatibility. SS 321H Round Bar, known by different names like DIN 1.4878 or UNS S32109, is well suited for these high-temperature and high-pressure performance purposes. It is widely used in applications involving prolonged high-temperature exposure, which deteriorates most of the ordinary grades of stainless steel.
The occurrence of titanium in SS 321H avoids carbide precipitation on welding, maintaining the strength and corrosion-resisting capacity of the material. This makes it suitable for high-temperature chemical processing equipment, heat treatment units, and power plant operations. The enhanced weldability and formability traits of SS 321H make it a panacea for carrying out several industrial activities.
Piyush Steel ensures that all kinds of Stainless Steel 321H Round Bars are manufactured with the help of high-quality raw materials and advanced production techniques. Hence because of this development, one can expect products that offer exceptional durability, mechanical performance, and resistance against oxidation and corrosion.
Stainless Steel 321H Round Bars Exporters in India
Stainless Steel 321H Round Bars are one of the most popularly used grades in heat-intensive industries. This has led Stainless Steel 321H Round Bars Exporters in India to market these round bars in bulk with the world's commercial markets, knowing how critical these materials are for demanding applications. SUS 321H Round Bar is best known in oil refineries, gas processing plants, aerospace engineering, and marine applications with exposure to extreme temperatures and harsh environments.
SS 321H Round Bars prove structural integrity even under thermal stress. Therefore, their choice is most reliable for boilers, heat exchangers, and high-temperature ducting systems. Their corrosion attacks, oxidation, and scaling resistance further bolster them in aggressive conditions.
- What is a 321H Stainless Steel Round Bar?
- Stainless Steel 321H Bars Forms in Stock
- Standard Sizes and Specifications of Stainless Steel 321H Round Bars
- Chemical Composition
- Mechanical Properties
- Equivalent Grades
- Identification Marks on Stainless Steel Round 321H Bars
- Applications and Uses
- Export Destinations

The SS 321H grade round bar, additionally known as the Stainless Steel 321H Round Bar, is a carbonized model of the equal vintage SS 321 grade. This product is mainly designed for programs that require excessive energy and resistance to warmth and corrosion. The round bar form of SS 321H is commonly utilized in industries collectively with chemical processing, power generation, and aerospace because of its superb mechanical features and resistance to oxidation at prolonged temperatures.
This alloy is stabilized with titanium, making it resistant to intergranular corrosion following exposure to temperatures inside the type of 800°C to 1500°C. The UNS S32109 Round Bar gives more appropriate common primary overall standard performance within the one's conditions, especially in which sulfur or precise contaminants are present.
We provide a huge style of SS 321H round bars in patterns and sizes to satisfy the unique goals of our customers. Below is a list of the types of stainless-steel 321H bars we have been given in stock:
Bar Form |
Description |
Stainless Steel Round Bar |
A versatile form, commonly used for machining and fabrication. |
Stainless Steel Square Bar |
Ideal for applications requiring high strength and durability. |
Stainless Steel Hollow Bar |
Used in structural applications and industries needing hollow forms. |
Stainless Steel Hex Bar |
Primarily used in high-torque applications, offering high strength. |
Stainless Steel Bright Bar |
Features a smooth finish for aesthetic or precision applications. |
Stainless Steel Forged Bar |
Suitable for heavy-duty applications requiring enhanced mechanical properties. |
Our DIN 1.4878 round bar is to be had in hundreds of favored sizes and specifications, which may be customized to shape particular necessities. Here is a breakdown of the typically to-be-had sizes:
Diameter Range |
Length Range |
Grade |
6 mm to 500 mm |
1 meter to 6 meters |
SS 321H |
1/4 inch to 20 inches |
3 feet to 20 feet |
UNS S32109 |
10 mm to 400 mm |
6 meters to 10 meters |
SUS 321H |
The round bar of SS 321H has the following chemical composition:
Element |
Content |
Carbon (C) |
0.04 - 0.10% |
Chromium (Cr) |
17.00 - 19.00% |
Nickel (Ni) |
9.00 - 12.00% |
Titanium (Ti) |
5xC to 0.70% |
Manganese (Mn) |
2.00% max |
Silicon (Si) |
1.00% max |
Phosphorus (P) |
0.045% max |
Sulfur (S) |
0.030% max |
The SUS 321H Round Bar is ideal for its remarkable mechanical features at expanded temperatures, collectively with immoderate tensile energy, creep resistance, and resistance to thermal fatigue. Below is a table displaying the mechanical features:
Property |
Value |
Ultimate Tensile Strength |
520 MPa minimum |
Yield Strength |
205 MPa minimum |
Elongation |
40% minimum |
Hardness |
170-220 HB |
Modulus of Elasticity |
200 GPa |
The DIN 1.4878 Round Bar is the same as several extremely good steel grades used internationally. The following table highlights those equivalents:
Standard |
Grade |
ASTM A276/A479 |
UNS S32109 |
EN 10088-2 |
X6CrNiTi18-10/1.4878 |
JIS G4303 |
SUS 321H |
Each of our SS 321 round bars is marked with the subsequent identifiers for traceability:
- Manufacturer’s name or trademark
- Grade (SS 321H or UNS S32109)
- Diameter and length specifications
- Heat remedy state of affairs
- Batch variety for amazing assurance
The DIN 1.4878 Round Bar is applied in a large type of utilizations due to its immoderate resistance to warmth and oxidation. Some of the number one makes use of round bars of SS 321H encompass:
- Chemical processing plants: For the fabrication of devices that handle corrosive substances.
- Aerospace organization: Components requiring immoderate strength and temperature resistance.
- Power technology: boilers, warm temperature exchangers, and one in each additive in the power plant.
- Food and beverage industries: Equipment uncovered to excessive temperatures and corrosion.
Piyush Steel Round Bars is an international employer of UNS S32109 round bars, with a robust presence inside the following export places:
- Malaysia
- Singapore
- Thailand
- Taiwan
- Indonesia
- Qatar
- Oman
- Jordan
- Saudi Arabia
- South Africa
- Egypt
Our SS 321H round bars are depended on in industries for the duration of the globe for their sturdiness, resistance to corrosion, and mechanical strength, making them the pinnacle choice for clients in those worldwide locations.