Manufacturer, Supplier & Exporter of Oil & Gas Round Bar

Riddhi Siddhi Impex is a leading manufacturer and domestic supplier of Oil & Gas Round Bars in India, providing high-quality bars that meet the stringent requirements of the oil and gas industry. These bars are designed for high-pressure, high-temperature, and corrosive environments, making them suitable for pipelines, valves, pumps, and other critical components in upstream, midstream, and downstream applications...

Oil & Gas Round Bars are available in high-grade carbon steel, alloy steel, stainless steel, and duplex/super duplex grades such as SS 316, SS 317, 2205 Duplex, and 2507 Super Duplex. These grades ensure excellent corrosion resistance, toughness, and strength, which are critical for handling crude oil, natural gas, and chemical exposure.

Oil & Gas Round Bars are extensively used in pipeline construction, valves, pump shafts, compressors, drilling rigs, offshore platforms, refineries, petrochemical plants, and pressure vessels. Their ability to resist stress corrosion cracking and pitting corrosion ensures safe and long-term operation in aggressive environments..

Riddhi Siddhi Impex supplies Oil & Gas Round Bars across India, covering major industrial and port cities such as Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru, Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Narmada, Ankleshwar, Navsari, Valsad, Rajpipla. Fast delivery and ready stock availability make it a preferred domestic supplier..

These bars are engineered to resist corrosion from saltwater, hydrogen sulfide, carbon dioxide, and other chemical agents encountered in oil and gas environments. Duplex and super duplex grades offer enhanced resistance to chloride-induced stress corrosion, extending the life of critical components and reducing maintenance costs..

Oil & Gas Round Bar – Technical Details

Specification

Property	Details
Product Name	Oil & Gas Round Bar
Material Grades	Carbon Steel, Alloy Steel, SS 316/316L, Duplex 2205, Super Duplex 2507
Diameter Range	6 mm – 300 mm
Length	1 Meter – 6 Meter / Custom Lengths
Finish	Hot Rolled, Cold Drawn, Polished, Peeled & Ground
Standards	ASTM, ASME, EN, DIN, IS, JIS
Applications	Pipelines, Pumps, Valves, Offshore Platforms, Refineries

Chemical Composition

Element	Carbon Steel (%)	Alloy Steel (%)	SS 316/316L (%)	Duplex 2205 (%)
Carbon (C)	0.20 – 0.25	0.05 – 0.20	≤ 0.08	≤ 0.03
Chromium (Cr)	–	0.5 – 1.5	16 – 18	21 – 23
Nickel (Ni)	–	0.3 – 1.0	10 – 14	4.5 – 6.5
Molybdenum (Mo)	–	0.2 – 0.5	2 – 3	2 – 3
Manganese (Mn)	0.30 – 1.0	0.5 – 1.2	≤ 2	≤ 2
Iron (Fe)	Balance	Balance	Balance	Balance
Nitrogen (N)	–	–	–	0.08 – 0.20

Mechanical Properties

Property	Carbon Steel	Alloy Steel	SS 316/316L	Duplex 2205
Tensile Strength	410 – 550 MPa	550 – 700 MPa	515 – 700 MPa	620 – 850 MPa
Yield Strength	250 – 350 MPa	350 – 500 MPa	205 – 290 MPa	450 – 550 MPa
Elongation	18 – 25%	15 – 20%	40% min	25 – 35%
Hardness	120 – 180 HB	180 – 250 HB	≤ 95 HRB	≤ 310 HB

Dimension Chart

Diameter (mm)	Weight (kg/m)
10	0.62
12	0.89
16	1.58
20	2.47
25	3.85
32	6.31
40	9.86
50	15.41
63	24.79
75	36.77

Equivalent Grades

Material	Equivalent Standard
Carbon Steel	ASTM A106 / A53
Alloy Steel	ASTM A182 / A335
SS 316/316L	AISI 316 / ASTM A276
Duplex 2205	EN 1.4462 / UNS S32205

Equivalent Standards

Standard	Description
ASTM A106 / A53	Seamless Carbon Steel Pipes and Bars
ASTM A182 / A335	Alloy Steel Pipes and Bars for High Temperature
EN 10088	European Standard Stainless Steel
JIS G4303	Japanese Stainless Steel Standard

Other Types

Type
Carbon Steel Oil & Gas Round Bar
Alloy Steel Oil & Gas Round Bar
SS 316 / 316L Oil & Gas Round Bar
Duplex 2205 Oil & Gas Round Bar
Super Duplex 2507 Oil & Gas Round Bar

Riddhi Siddhi Impex ensures that all Oil & Gas Round Bars comply with ASTM, ASME, EN, JIS, DIN, and IS standards. Each batch comes with a Material Test Certificate (MTC), guaranteeing traceability, quality, and reliability for demanding oil and gas operations. Their products are trusted by EPC contractors, refineries, offshore operators, and process industries across India..

Frequently Asked Questions (FAQs)

Q1: What are Oil & Gas Round Bars used for?

They are used in pipelines, valves, pumps, compressors, offshore platforms, and refineries.

Q2: Are custom sizes and lengths available?

Yes, Riddhi Siddhi Impex supplies custom diameters, lengths, and finishes to suit specific project requirements.

Q3: Which grades are best for corrosive environments?

SS 316L, Duplex 2205, and Super Duplex 2507 are ideal for resisting corrosion from saltwater, CO2, and H2S exposure.

Q4: Do the bars come with certification?

Yes, each batch comes with Material Test Certificates (MTC) as per ASTM, ASME, or EN standards.