Unifit Metalloys Inc is a trusted name when it comes to manufacturing and supplying Alloy Steel AISI 4130 Fasteners. We offer a full range that includes bolts, nuts screws, washers and stud bolts all designed for tough industrial use. AISI 4130 is known for its great heat resistance and easy weldability especially in TIG welding. It’s often used in chemical and nuclear industries where conditions can get harsh like with boiling nitric acid up to 70 percent. These fasteners work well in high temperature gas settings and are reliable during plant shutdowns where corrosion and sensitization can be a problem.
Alloy Steel 4130 Hex Head Screws are built for strength and work well in roll formed structural parts. They don’t harden too quickly which makes them a good choice for cold heading fasteners. Our 4130 Flat Washers made from austenitic steel are designed to resist corrosion even in high temperature conditions. We also offer Alloy Steel 4130 Stud Bolts that are made with tight control over materials keeping silicon under 0.3 percent and carbon below 0.015 percent. This helps improve their durability, weldability and overall performance.
Request QuoteWhat is AISI 4130?
AISI 4130 is one of those steels people turn to when they need something tough but easy to work with. It’s a low alloy steel with chromium and molybdenum mixed in to make it stronger. You’ll find it under the SAE AISI 4000 series. What makes it stand out is how well it welds and how it doesn’t crack under pressure. Engineers use it for all sorts of stuff — fasteners, aircraft parts, even race car frames and pressure tanks. It also works well out at sea like on drilling rigs. Basically if something needs to stay strong and reliable this steel usually gets the job done.
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Types of AISI 4130 Fasteners
We make and supply a complete range of AISI 4130 fasteners built for industries where parts need to perform under pressure. Whether it’s for heat heavy loads or tough conditions our fasteners are made to keep up. Here are some of the AISI 4130 fastener types we offer:
- AISI 4130 Structural Bolts
- AISI 4130 Heavy Hex Bolts
- AISI 4130 Hex Bolts
- AISI 4130 Hexagon Head Bolts
- AISI 4130 Machine Bolts
- Alloy Steel AISI 4130 T Bolts
- Alloy Steel Grade 4130 Eye Bolt
- AISI 4130 Foundation Bolts
- Alloy Steel 4130 J Bolts
- AISI 4130 Button Head Bolt
- AISI 4130 Anchor Bolts
- AISI 4130 Long Bolts
- AISI 4130 Carriage Bolt
- AISI 4130 Elevator Bolt
- AISI 4130 Timber Bolts
- AISI 4130 Square Bolt
- AISI 4130 Metric Bolt
- AISI 4130 Plow Bolts
- Alloy Steel 4130 U Bolts
- AISI 4130 Flange Bolts
- AISI 4130 Hex Nuts
- AISI 4130 Heavy Hex Nuts
- AISI 4130 Wing Nuts
- AISI 4130 Hexagon Nuts
- AISI 4130 Cap Nuts
- AISI 4130 Square Nuts
- AISI 4130 Coupling Nuts
- AISI 4130 Hex Jam Nuts
- Alloy Steel Gr 4130 T-Nuts
- AISI Grade 4130 Eye Nuts
- AISI 4130 Nylock Nuts
- Alloy Steel 4130 High Tensile Nuts
- AISI 4130 Cage Nuts
- AISI 4130 Dome Nuts
- AISI 4130 Knurled Nuts
- AISI 4130 Keps-K Lock Nuts
- AISI 4130 Machine Hex Nuts
- AISI GR 4130 Slotted Nuts
- AISI 4130 Plain Washers
- AISI 4130 Spring Washers
- AISI 4130 Locking Washer
- AISI 4130 Split Washer
- Alloy Steel Gr 4130 Flat Washers
- AISI 4130 Ogee Washers
- AISI 4130 Fender Washer
- AISI 4130 Conical Washers
- AISI 4130 Serrated Washer
- AISI 4130 Tab Washers
- AISI 4130 Hex Washer
- AISI 4130 Countersunk Washer
- Alloy Steel 4130 Dock Washers
- AISI GR.4130 Spring Lock Washer
- AISI 4130 Star Washer
- AISI 4130 Bonded sealing Washer
- AISI 4130 Square Washers
- AISI GR 4130 Belleville Washer
- AISI 4130 Socket Set Screw
- AISI 4130 Self Drilling Screw
- AISI 4130 Socket Head Cap Screw
- AISI 4130 Hex Head Screws
- AISI 4130 Wood Screw
- Alloy Steel 4130 Eye Screw
- AISI 4130 Wing Screw
- AISI 4130 Self Tapping Screws
- AISI 4130 Roofing Screw
- AISI 4130 Phillips Head Screw
- AISI 4130 Decking Screw
- AISI 4130 Machine Screw
- AISI 4130 Thumb Screw
- AISI 4130 Drywall Screws
- AISI 4130 Chipboard Screw
- AISI 4130 Metric Set Screws
- AISI 4130 Sems Screw
- AISI 4130 Thread Rolling Screw
- AISI 4130 Full Threaded Stud Bolts
- AISI 4130 Half Threaded Stud Bolts
- Alloy Steel 4130 Threaded Rod
- AISI 4130 Double Ended Studs
- AISI 4130 Tap End Stud Bolt
- Alloy Steel 4130 Tie Rods
- Alloy Steel Grade 4130 Studs
- AISI 4130 Single End Stud Bolts
- AISI 4130 Reduced Shank Stud Bolt
- AISI 4130 Continuous Threaded Stud
- AISI 4130 Partial Threads Stud Bolt
- Alloy Steel AISI 4130 Heavy Stud Bolts
We offer sizes starting from M02 all the way up to M100 with lengths going up to 5 meters. If you need something specific we can customize it to match your requirements and meet global standards. These fasteners are built to be tough, versatile and long lasting which makes them a solid choice for critical use across different industries.
AISI 4130 Chemical Composition (SAE 4130)
If you're working with critical parts in aerospace automotive or oil and gas it helps to know what goes into AISI 4130. The strength, weldability and resistance to corrosion all come from the mix of alloying elements in its chemical makeup. Understanding that composition can make a real difference when choosing the right material for the job.
| Material | Percentage (%) |
|---|---|
| Carbon (C) | 0.28 – 0.33 |
| Manganese (Mn) | 0.40 – 0.60 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
| Silicon (Si) | 0.15 – 0.30 |
| Chromium (Cr) | 0.80 – 1.10 |
| Molybdenum (Mo) | 0.15 – 0.25 |
| Iron (Fe) | 97.03 – 98.22 |
SAE 4130 has just the right mix of elements that make it a solid choice for parts that deal with stress and heat. It’s tough, holds up well over time and gives a bit of corrosion protection too. That’s why it’s often used in fasteners like bolts, nuts and studs for jobs where pressure and temperature run high.
AISI 4130 Material Equivalent Grades for Fasteners
When you're working with AISI 4130 fasteners it really helps to know what the equivalent grades are in different standards. Not every project uses the same system and having the right match can save a lot of trouble later. Whether you're getting your materials locally or from somewhere else you want to make sure the fasteners will perform the way you need. Here’s a quick look at the most commonly used equivalents for AISI 4130 fasteners:
| AISI | UNS | WERKSTOFF NR. |
|---|---|---|
| Grade 4130 | G41300 | 1.7218 |
AISI 4130 Material Specification for Fasteners
| Specification | Details |
|---|---|
| Specifications | ASTM A193, ASTM A194 / ASME SA193, SA194 GR, IS, BS |
| Standard | DIN, ISO, JIS, GB, IS, BS, ASTM |
| Length | 3mm to 200mm |
| Size | M02 to M160, Custom Sizes |
AISI 4130 Material Properties
AISI 4130 is built for tough jobs. You’ll find it used in aerospace motorsports oil and gas and even structural engineering because it holds up well under stress. It’s strong, tough and easy to weld which makes it dependable when there’s a lot of movement or heat involved. Below is a quick look at the mechanical properties that make AISI 4130 such a solid choice.
| Material Properties | Value |
|---|---|
| Tensile Strength | ~560 – 670 MPa |
| Yield Strength | ~460 MPa |
| Elongation | ~21.5% |
| Hardness (Brinell) | 197 – 217 HB |
| Density | 7.85 g/cm³ |
| Modulus of Elasticity | 205 GPa |
| Impact Toughness (Charpy) | Good |
These properties make AISI 4130 a great fit for fasteners that deal with stress vibration or repeated loads. It’s strong and reliable but also flexible enough to work in different setups. That balance of performance and versatility is why it’s often chosen for both structural work and jobs that involve handling pressure without breaking the budget.
Key AISI 4130 Steel Properties
What really makes AISI 4130 steel stand out is how it keeps its strength and performance even when the conditions get tough. Whether it’s going into high altitude aerospace parts or heavy duty fasteners this alloy holds up when it matters most.
Some of the key reasons people choose AISI 4130 steel include
- It’s easy to weld and machine
- It stays strong even in cold temperatures
- It gives decent resistance to corrosion
- Works well for surface hardening like carburizing and nitriding
- Handles fatigue and is abrasion resistant.
Because of all this AISI 4130 is a favorite among manufacturers and suppliers who want something durable without breaking the bank.
Applications of AISI 4130 Fasteners
AISI 4130 fasteners are trusted in places where things just can’t go wrong. When strength, durability and safety really matter these fasteners show up and do the job. They’ve got the kind of mechanical properties and corrosion resistance that make them dependable in tough conditions — whether it’s heat pressure or constant vibration they can handle it.
You’ll see them used in all sorts of industries like:
- Civil Construction Industries
- Ship Building Industries
- Heavy Engineering Industries
- Fertilizer Plants
- Power Generation Units (Nuclear, Hydro & Thermal)
- Petro-Chemical Industries
- Civil Infrastructure Projects
- Oil Expansion Projects
- Offshore & Onshore Oil Towers
- Home Fittings
- Valves, Vessels & Pumps
- Railways
- Steel Plants
Whether it’s locking down a pipeline or keeping high speed machines running steady, AISI 4130 fasteners give the kind of reliability engineers count on and industries depend on every day.
AISI 4130 Price in India for Fasteners
Looking for AISI 4130 Fasteners that meet the highest industry standards? We offer a comprehensive range of fasteners compliant with IS, BS, and DIN standards at competitive AISI 4130 price in India. Whether you're in aerospace, oil & gas or heavy engineering, our fasteners deliver the performance and reliability you need. For the latest pricing or to discuss your specific requirements, simply fill out the form below. Our team will get back to you promptly with all the information you need!
Looking for AISI 4130 fasteners that actually meet the mark? You’re in the right place. We offer a full range that follows IS BS and DIN standards and we keep our AISI 4130 prices in India fair and competitive. Whether you’re working on something in aerospace oil and gas or heavy engineering our fasteners are built to last and made to perform. If you need a quote or just want to talk through what fits your project best fill out the form below and someone from our team will get back to you soon.
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