Jignesh Steel
Mumbai, India
Jignesh Steel
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As a renowned Duplex Fasteners Manufacturer in India, Jignesh Steel produce hot forged bolting material for Industrial applications. Their factory is located in Taloja, Mumbai and equipped with latest machinery for forging and CNC machining. Their highly skilled and experienced team allow Jignesh to supply high quality Duplex Steel Fasteners at competitive price in India. The company has specialization in producing Duplex Bolts, Nuts, Washers, Socket Head Cap Screws, and Stud Bolts accordance to ASTM A182 standard.
Duplex Bolts are known for their superior corrosion resistance and high strength. Grades of duplex fasteners are UNS S32205 and S31803. Whereas UNS S32205 bolts are stronger compared to UNS S31803 due to the higher nitrogen content. These duplex stud bolts are suitable for up to 300°C temperatures. Higher nitrogen content and a balanced composition of chromium and molybdenum make duplex fasteners more resistant to pitting.
The tensile strength of these UNS S31803 Stud Bolts are approx. 620-850 MPa. Because of Load-Bearing Capacity, Duplex Stainless Steel Bolts can handle much loads under harsh environments. Furthermore, 25% elongation of Duplex Steel Hex Head Bolt Increase their flexibility during load. These Duplex fasteners are commonly used in marine and seawater projects.
Duplex bolts and nuts can be manufactured in sizes ranging from M6 to M100, with a maximum length of 500 mm. The PREN value of these EN 1.4462 hex bolts and nuts is 35. ASTM A182 Grade F51 Bolts can sustain up to 20-25 years in chemical and marine industries.
Jignesh Steel is a manufacturer of duplex fasteners in India. The produce 600 tons UNS S31803 Stud Bolts in a year. Jignesh Steel is an approved supplier of Duplex steel bolts in Petrokemya (a Saudi Arabia Petrochemical Company) since 2017. The company offer NACE MR0175 and ISO 15156-2 Certificates with Duplex Bolts and Nuts used in H2S Environments.
Duplex Fasteners Specification
Standard: JIS, ISO, ASME
Dimensions : DIN 931, 976, 125, 933, 934, 7991, ASME B18.2.1, B18.3
Duplex Fasteners: ASTM A182 Forged, ASTM A276 Rolled, ISO 3506
Threads : UNF, BSW, BSF, METRIC, UNC, UNEF, NPT, NPTF
Quote within 24Hrs with Technical Data Sheet
100% Tested Duplex Fasteners supply with MTC EN 10204/3.1
Who they are?
Duplex Fasteners Manufacturer in India
Manufacturer of UNS S31803 Stud Bolts
Manufacturer of Hot Forged Duplex Stainless Steel Bolts in India
Supplier of ASTM A182 Grade F51 Bolts in Mumbai
Types of Duplex Fasteners
Duplex Bolts
Duplex Screws
Duplex Nuts
Duplex Washers
Duplex Threaded Rod
Duplex Stud Bolt
UNS S31803 Stud Bolts Ex Stock in Mumbai for Oil and Gas Industry
Jignesh Steel produces over 600 tons UNS S31803 stud bolts in a year. These stud bolts come with MTC EN 10204/ 3.1 and are suitable in a highly corrosive environment. Jignesh Steel is an approved supplier of Duplex Fasteners in renowned Chemical processing and Petrochemical companies in USA and Saudi Arabia. Company is an approved vendor in Petrokemya based in Al Jubail and Westlake Chemical Corp based in Texas. Jignesh Steel has the pride to supply duplex stainless steel bolts and nuts to these companies since 2017. They are receiving repeat orders based on quality standards and timely delivery every time. The advantage for buyers is that Jignesh maintains ready stock of UNS S31803 and UNS S32205 Stud bolts in Mumbai from M3 to M16 Metric Sizes.
Dimensions Chart of Duplex S31803 Stud Bolts
| Diameter | ||
|---|---|---|
| Plain | ||
| UNC | 8UN | |
| 1 | 19572 | – |
| 1/2 | 19568 | – |
| 2 | 19659 | 13984 |
| 3/4 | 19570 | |
| 5/8 | 19569 | – |
| 7/8 | 19571 | – |
| 11/2 | 19657 | 13982 |
| 11/4 | 19574 | 13980 |
| 11/8 | 19573 | 13979 |
| 13/4 | 19658 | 13983 |
| 13/8 | 19656 | 13981 |
Duplex Steel UNS S31803 Stud Bolt Heat Properties
| Density, lbm/in3 | Electrical Resistivity, mW•in | Heat Capacity, BTU/lbm°F | Electrical Resistivity, (in x 10-6) | Thermal Conductivity,(BTU/hr ft °F) | |
|---|---|---|---|---|---|
| at 68°F | 0.278 | 8.7 | 0.112 | 27.6 | 33.5 |
| at 212°F | – | 9.2 | 0.119 | 26.1 | 35.4 |
| at 392°F | – | 9.8 | 0.127 | 25.4 | 37.4 |
| at 572°F | – | 10.4 | 0.134 | 24.9 | 39.4 |
Duplex Stud Bolt Types
Manufacturer of Hot Forged Duplex Stainless Steel Bolts in India
Jignesh Steel is a fasteners manufacturing company based in Mumbai, India. Company only produces Duplex and super duplex stainless steel Bolts and nuts. Jignesh Steel can produce Hot Forged Duplex Steel Bolts up to M100 for oil and gas, marine and industrial sector. DSS Fasteners are supplied as per ASTM A320, A193, and ASME B18.2.1 standards.
If you are searching for a genuine manufacturer in India of UNS S32205 Bolts and nuts, who has in-depth knowledge and experience as a supplier of Duplex steel in the USA. Ask Jignesh to provide their details of supplies and approval certificates of renowned companies in America. DIN 1.4462 threaded rod is high corrosion resistance and high strength material widely used in chemical processing industries, pressure vessels and heat exchangers.
How to Install S31803 Bolt in H2S Contained Conditions?
Ex-Stock & Supply ability of Jignesh Steel
Jignesh is an Indian Company supplying high corrosion resistance Duplex socket head cap screws to over 100 petrochemical companies in USA and Africa
| Size Range | M6 to M54 Hex Bolts, Threaded Rod & Stud Bolts |
|---|---|
| American Standard |
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| Ex-stock & Grades |
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| MTC | EN 10204 type 3.1 |
| Inspection & Sample | Yes |
| Specialized Manufacturer of | ASTM A182 F51 Hex Bolts and Stud |
| HSN Code | 7318 |
SABIC Approved Supplier of ASTM A182 Grade F51 Bolts in Mumbai
Jignesh Steel was the first Indian manufacturer of S31803 Stud Bolts approved in SABIC. Jignesh Steel is supplying ASTM A479 UNS S31803 Fasteners to more than 100 petrochemical and power companies in the USA and Africa. ASTM A182 F51 Hex Bolts manufactured by NSAEC installed in renowned projects like PETROKEMYA based in Al Jubail, Saudi Arabia, Farabi petrochemicals (KSA), Westlake Chemical Corp. based in Texas, USA and many more. You can request Jignesh for their client list and other details or ready reference.
Duplex Bolt Types
Weight Chart of Duplex F51 Bolts
| Length in mm | M 5 | M 6 | M 8 | M 10 | M 12 | M 14 | M 16 | M 18 | M 20 | M 22 |
|---|---|---|---|---|---|---|---|---|---|---|
| 16 | 0.448 | 0.743 | 1.590 | 3.211 | – | – | – | – | – | – |
| 20 | 0.598 | 0.812 | 1.711 | 3.411 | 4.892 | – | – | – | – | – |
| 25 | 0.660 | 0.897 | 1.871 | 3.660 | 5.252 | 8.170 | – | – | – | – |
| 35 | 0.804 | 1.120 | 2.271 | 4.223 | 5.974 | 10.000 | 11.416 | 16.026 | 19.608 | – |
| 30 | 0.737 | 1.010 | 2.070 | 3.912 | 5.574 | 9.690 | 10.707 | – | 18.657 | – |
| 40 | 0.881 | 1.230 | 2.470 | 4.533 | 6.410 | 10.288 | 12.107 | 16.667 | 20.747 | – |
| 45 | 0.958 | 1.340 | 2.671 | 4.840 | 6.859 | 10.504 | 12.821 | 17.241 | 21.739 | – |
| 50 | 1.030 | 1.450 | 2.870 | 5.155 | 7.299 | 11.261 | 13.624 | 17.857 | 22.727 | 28.409 |
| 55 | – | 1.560 | 3.071 | 5.464 | 7.740 | 11.628 | 14.409 | 18.868 | 23.810 | 30.120 |
| 60 | – | 1.670 | 3.270 | 5.774 | 8.183 | 12.255 | 15.244 | 20.000 | 25.126 | 32.051 |
| 65 | – | 1.781 | 3.472 | 6.083 | 8.621 | 12.626 | 16.026 | 21.008 | 26.455 | 34.014 |
6 Quality Checks before Buying Duplex Fasteners
Get EN 1.4462 Hex Bolts and Nuts at Best Price in India with NACE MR0175/ISO 15156-2 Certificate Best for Bolting in H2S Containing Environment
Jignesh is specialised in SDSS bolts and nuts and supply only with test certificate EN 10204 / 3.1 and NACE MR0175/ISO 15156-2. Contact for UNS S32205 Bolts price list for Mumbai and MTC along with proof of origin of raw material. production size range of DSS threaded rod available from M6 to M54. Call for S31803 studs data sheet and price per KG in India. All Duplex Steel bolts and hex nuts manufactured by Jignesh Steel are tested with sulfuric, phosphoric, nitric, sulphuric acid, organic and inorganic acids, chlorides, salts and acetic acids. Test reports and samples are provided upon request.
Duplex Hex Bolts Price in India
| Size Range | Price in (USD) per piece |
|---|---|
| M8 x 30 mm | US $1.75 |
| M10 x 40 mm | US $2.20 |
| M12 x 50 mm | US $3.00 |
| M14 x 60 mm | US $4.00 |
| M16 x 70 mm | US $5.00 |
| M18 x 80 mm | US $6.00 |
| M20 x 90 mm | US $7.00 |
| M22 x 100 mm | US $8.00 |
| M24 x 110 mm | US $9.00 |
| M30 x 120 mm | US $12.00 |
Duplex Nut Price in Mumbai
| Size Range | Price in (USD) per piece |
|---|---|
| M8 | US $0.90 |
| M10 | US $1.20 |
| M12 | US $1.50 |
| M14 | US $2.00 |
| M16 | US $2.50 |
| M18 | US $3.00 |
| M20 | US $3.50 |
| M22 | US $4.00 |
| M24 | US $4.50 |
| M30 | US $6.00 |
Types of Duplex Stainless Steel Nuts
Why Petrochemical Industry prefer Duplex Steel for bolting compared to Stainless Steel?
Here are top 6 reasons of using Duplex Bolts in Petrochemical Industry
- Duplex Fasteners has Enhanced Corrosion Resistance
- Higher Strength and Durability
- Resistance to Stress Corrosion Cracking
- Cost-Effectiveness
- Better Performance in High-Temperature Environments
- Resistance to Abrasion and Erosion
Projects & Clientele
Jignesh Steel is the only Duplex Fasteners manufacturing company in India produce over 600 ton UNS S32205 Bolts and nuts in more than 20 sizes and types. Check a list of their clients in Middle east
| Saudi Arabia |
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|---|---|
| United States(USA) |
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| SERBIA |
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Duplex Bolts and Nuts Compatible with which acids?
Here is a list of acids where project engineers prefer to install duplex bolts and nuts
| Acid Type | Suitable grades of Duplex Bolts |
|---|---|
| Sulfuric Acid | UNS S31803 / UNS S32205 |
| Formic Acid | UNS S31803 / UNS S32205 |
| Citric Acid | UNS S31803 / UNS S32205 |
| Hydrochloric Acid (HCl) | UNS S31803 |
| Nitric Acid | UNS S32205 |
| Phosphoric Acid | UNS S31803 / UNS S32205 |
| Acetic Acid | UNS S31803 / UNS S32205 |
Ask for Free Sample of Duplex Steel Hex Head Bolt and DSS Washers to Check Strength and Torque
| Washer Size | Shear Strength (kN) | Tensile Strength (kN) | Installation Torque (Nm) |
|---|---|---|---|
| M5 x 10 mm | 4.0 | 5.0 | 1.5 |
| M6 x 12 mm | 6.5 | 8.0 | 2.0 |
| M8 x 16 mm | 10.0 | 12.0 | 3.5 |
| M10 x 20 mm | 15.0 | 20.0 | 5.0 |
Duplex Washer Types
How to check the Hardness of Duplex Stud Bolts?
- Select the Hardness Test Method
- Rockwell Hardness Test (HR)
- Brinell Hardness Test (HB)
- Vickers Hardness Test (HV)
- Knoop Hardness Test (HK)
- Prepare the Sample
- Conduct the Hardness Test
- Rockwell Hardness Test
- Vickers Hardness Test
- Brinell Hardness Test
- Compare with Standards
- Document Results
Quality and Price Difference of Duplex Fasteners in India and China
Indian manufacturer of Duplex fasteners follow the quality as per ISO 9001, ASTM, ASME, and EN standards. On other side Duplex bolts & nuts manufacturers in China supply the material with ISO 9001, ASTM, and GB/T standards. However Duplex bolts manufacturers in India and China follow the same manufacturing methods such as cold/ hot forging and precision machining.
Labor cost, quality, origin of material, and regular compliance create a difference in pricing. In India the Duplex Hex bolt cost approx. US $5.00 to $12.00 per kg and in China it may cost between US $3.00 to $8.00 per kg. The buyers in MENA countries like in Saudi Arabia prefer SABIC and KNPC approved Duplex Fasteners manufacturers for their bolting requirements.
Duplex Bolts Price Comparison Chart
| Duplex Bolts Price per kg | ||
|---|---|---|
| Size (Dia x Length) |
Indian Manufacturer | Chinese Manufacturer |
| M6 x 20 mm | US $4.00 | US $3.50 |
| M8 x 40 mm | US $4.00 | US $3.00 |
| M10 x 50 mm | US $5.00 | US $4.00 |
| M12 x 60 mm | US $5.50 | US $4.50 |
| M16 x 80 mm | US $6.00 | US $5.00 |
| M20 x 100 mm | US $7.00 | US $6.00 |
Duplex Screw Types
Equivalent Material of Duplex Steel Fasteners
| Standard | WERKSTOFF NR. | UNS |
|---|---|---|
| Duplex 2205 | 1.4462 | UNS S31803 |
Chemical Composition of UNS S31803 Duplex Bolts & Nuts
| Grade | Cr | Mo | C | P | N | S | Ni | Mn | Si |
|---|---|---|---|---|---|---|---|---|---|
| 2205(S31803) | min: 21.0, max: 23.0 | min: 2.5, max: 3.5 | 0.03 max | 0.03 max | min: 0.08, max: 0.20 | 0.02 max | min: 4.5, max: 6.5 | 2.0 max | 1.0 max |
Duplex Fasteners Mechanical Properties
| Grade | Yield Strength 0.2% Proof (MPa) min |
Tensile Strength (MPa) min |
Elongation (% in 50mm) |
Hardness Rockwell C (HR C) |
|---|---|---|---|---|
| UNS-S 31803 | 448 | 650-880 | 25 | – |
Certificates
Company Profile
| Nature of Business | Manufacturer and Exporter |
|---|---|
| Import Export Code (IEC) | 0307085066 |
| Legal Status of firm | Proprietorship |
| GST No. | 27AKKPB6022H1ZF |
Contact Info
| Contact Person | Mr. Jignesh Bhansali |
|---|---|
| Phone | +91 9869357774 |
| sales@jigneshsteel.com | |
| Mumbai Head Office | Jignesh Steel
45, Islampura Street, Near Alankar Cinema, Mumbai – 400004, Maharashtra, India |
