Why Buy AISI 4130 Bolt From Ganpat Industrial Corporation ?
Quote In 24 Hours
Send a size-wise list before 6 PM IST for next-morning bolt pricing
Heat-Traceable Chromoly
Every 4130 bolt lot carries a heat number back to the mill test certificate
Hex, Heavy Hex & Studs
Metric and imperial fastener forms held ready in Mumbai stock
Same-Week Dispatch
Rack sizes leave Mumbai within 5 working days of PO release
Zero Rejection Cost
Proof load, hardness and thread gauging cleared before packing
AISI 4130 Bolt Technical Data
- 1Material Basis: AISI 4130 Alloy Steel • UNS G41300 • SAE 4130 Hex Bolts, chromium-molybdenum low alloy
- 2Governing Standards: ASTM A354 Grade BC & BD • ASTM A29 / A322 Bar Stock • EN 10269 25CrMo4 For Elevated Temperature Bolting
- 3Size Range: Metric M6 to M64 • UNC / UNF 1/4″ to 2.1/2″ • Custom drawing sizes on request
- 4Form: Hex Bolt, Heavy Hex Bolt, Stud Bolt, Threaded Rod, Square Bolt, Eye Bolt, Anchor Bolt, Machine Screw & Hex Nuts
- 5Equivalents: DIN 1.7218 • EN 25CrMo4 • JIS SCM430 • Close chemistry match on all three
- 6Strength Grades: ASTM A354 BC (125 ksi min UTS) & BD (150 ksi min UTS) ex-stock
Mumbai works desk • WhatsApp +91 85912 64209 • Rack sizes dispatch the same week
Ganpat Industrial Corporation has served industrial buyers from Mumbai since 1997. We work as a forging manufacturer of fasteners. We are a stockist, supplier, and exporter of alloy steel bar and bolting products. The chromium-molybdenum chemistry of AISI 4130 Bolt gives design engineers a rare combination. It offers quenched and tempered strength up to ASTM A354 Grade BD. This pairs with better weldability and machinability than higher-carbon grades. Steel 4130 Studs and Alloy 4130 Threaded Rod leave our stockyard. 4130 Steel Bolts also ship against metric and imperial thread call-outs. Applications span aircraft engine mounts, drilling rig flanges, and roll cage fasteners. They are also used for cross-country pipeline tie-in bolting. UNS G41300 heat traceability is carried through every batch to the mill test certificate.
Mumbai · Chromium-Molybdenum Alloy Bolt Manufacturer & Exporter
AISI 4130 Bolt Built To Hold Torque, Take A High-Temperature Load And Pass A Proof Test Without Complaint
Ganpat Industrial Corporation is a trusted AISI 4130 Bolt Supplier in India, forging hex bolts, studs and threaded rod from our Mumbai works. We supply UNS G41300 Chromoly 4130 Bolt to ASTM A354 Grade BC/BD strength levels with EN 10204 3.1 certification.
- ✓ISO 9001:2015
- ✓ISO 14001:2015
- ✓OHSAS 18001:2007
- ✓PED Certified
- ✓Petrofac Approved
High-Strength UNS G41300 Hex Bolt Manufacturer in India, Refer Specifications
Specification Of AISI 4130 Bolt
Order Sheet In One Glance
Everything a buyer normally has to email us for, listed before you pick up the phone.
AISI 4130 Bolt Material Basis
- AISI 4130, SAE 4130 Hex Bolts
- 4130 steel Bolt, Alloy Steel
- Chromium-Molybdenum Low Alloy
- UNS G41300
Governing Bolting Standards
- ASTM A354 Grade BC / BD
- ASTM A29 / A322 Bar Stock
- EN 10269 25CrMo4 Bolting
- ASME B18.2.1 Head Dimensions
AISI 4130 Bolt Size Range
- Metric M6 – M64
- UNC / UNF 1/4″ – 2.1/2″
- Length To Drawing
- Diameters Above 4″ On Request
AISI 4130 Bolt Form & Head Style
- Hex Bolt & Heavy Hex Bolt
- Stud Bolt & Threaded Rod
- Square & Eye Bolt
- Machine Screw & Anchor Bolt
AISI 4130 Bolt Delivery Condition
- Quenched & Tempered (Q+T)
- Normalized (N)
- Annealed Prior To Machining
- Stress Relieved On Request
AISI 4130 Bolt Production Route
- Hot Forged Blank
- Thread Rolled / Cut Post-Heat-Treat
- Oil Quench & Temper
- Centreless Ground On Request
AISI 4130 Bolt Alloy 4130 Threaded Rod Testing Offered
- Proof Load & Tensile Test
- Core Hardness (HRC)
- PMI Spectro Analysis
- Thread Gauging & MPI
Matching Bolting Accessories
- AISI 4130 Nuts / AISI 4130 Hex Nuts
- SAE 4130 Hex Nuts / Heavy Hex Nuts
- Steel 4130 Nuts & Washers
- DIN 1.7218 Studs
AISI 4130 Bolt Packing
- Boxed By Size & Length
- VCI-Wrapped For Sea Freight
- Palletised Or Wooden Crated
- Heat-Number Tagged
UNS G41300 Hex Bolt Size Chart
We stock metric and imperial sizes, quoting custom ASTM A354 dimensions on request.
| Metric Size | Thread Pitch (mm) | UNC/UNF Nominal | Threads Per Inch | Head Type |
|---|---|---|---|---|
| M6 | 1.00 | 1/4″ | 20 / 28 | Hex |
| M10 | 1.50 | 3/8″ | 16 / 24 | Hex |
| M12 | 1.75 | 1/2″ | 13 / 20 | Hex / Heavy Hex |
| M16 | 2.00 | 5/8″ | 11 / 18 | Heavy Hex |
| M20 | 2.50 | 3/4″ | 10 / 16 | Heavy Hex |
| M24 | 3.00 | 1″ | 8 / 12 | Heavy Hex / Stud |
| M36 | 4.00 | 1.1/2″ | 6 / 12 | Stud / Threaded Rod |
| M64 | 6.00 | 2.1/2″ | 4 | Stud / Threaded Rod |
Types Of AISI 4130 Bolt We Supply
As a leading alloy fastener stockist, we hold all common head styles, thread forms and matching nuts.
AISI 4130 Hex Bolt
UNC / UNF
SAE 4130 Heavy Hex Bolts
UNS G41300 Heavy Hex Bolt
Steel 4130 Square Bolts
Square Head
Steel 4130 Eye Bolts
Lifting Point
4130 Steel Anchor Bolts
Foundation
Steel 4130 Studs / Alloy 4130 Threaded Rod
Double End
UNS G41300 Machine Screws
Machine Thread
SAE 4130 Screw / Cap Screw
Socket & Hex Head
Need A Custom AISI 4130 Bolt Length Or Head Style?Mail the diameter, length and grade – we quote hex, heavy hex or stud form the same day.
4130 steel Bolt Chemical Composition
Bolting stock cast composition meets AISI 4130 Alloy Steel and UNS G41300 heat analysis limits.
IronFe
97.03 – 98.22%
ChromiumCr
0.80 – 1.10%
ManganeseMn
0.40 – 0.60%
CarbonC
0.28 – 0.33%
SiliconSi
0.15 – 0.30%
MolybdenumMo
0.15 – 0.25%
SulphurS
0.040% max
PhosphorusP
0.035% max
AISI 4130 Nuts Mechanical Properties
The Numbers Your Inspector Will Ask For
Quenched and tempered AISI 4130 Bolt is supplied to ASTM A354 Grade BC or Grade BD, sizes 1/4″ through 2.1/2″ nominal.
Grade BC Tensile
862 MPa
125,000 psi min
Grade BD Tensile
1034 MPa
150,000 psi min
Grade BC Core Hardness
HRC 26 – 36
1/4″ – 2.1/2″
Grade BD Core Hardness
HRC 33 – 39
1/4″ – 2.1/2″
Grade BC Proof / Yield
724 / 751 MPa
105 ksi proof • 109 ksi yield min, 1/4″ – 2.1/2″
Grade BD Proof / Yield
827 / 896 MPa
120 ksi proof • 130 ksi yield min, 1/4″ – 2.1/2″
Sizes 2.1/2″ – 4″
BC 793 MPa / BD 965 MPa
Tensile min drops per ASTM A354 above 2.1/2″
Tempering Requirement
427°C Min
800°F minimum reheat after oil quench, both grades
AISI 4130 Bolt Equivalent Grades
One Chemistry, Many Nameplates
AISI 4130 Bolt and DIN 1.7218 Studs share the same base chromoly chemistry read against different national bolting standards.
AISI / SAE / UNS
- AISI 4130 Bolt
- SAE 4130 Hex Bolts
- UNS G41300
DIN / Werkstoff
- DIN 1.7218 Studs
- Werkstoff Nr. 1.7218
- 25CrMo4
EN / European Bolting
- EN 25CrMo4
- EN 10269 Bolting Grade
- Close chemistry match
JIS
- JIS G4105 SCM430
- JIS SCM2
- Close chemistry match
Nearby Fastener Grades
- AISI 4140 (higher carbon)
- AISI 8740 (aerospace bolting)
- ASTM A193 B7 (elevated temp)
Indian Market Note
- No single-number IS bolt grade
- Ordered by ASTM A354 grade
- Compared by chemistry and hardness
Physical Properties Of SAE 4130 Screw
Density
7.85 g/cm³
0.284 lb/in³
Melting Point
1432 °C
2610 °F
Poisson’s Ratio
0.27 – 0.30
Typical for low alloy steel
Modulus Of Elasticity
190 – 210 GPa
27,557 – 30,458 ksi range
Buy Alloy 4130 Threaded Rod and Studs in Metric & Imperial Sizes for High Temperature
Application Of AISI 4130 Hex Nuts
Where This Chromoly Bolt Earns Its Torque
Anywhere a joint needs high clamp load with limited weight, AISI 4130 Bolt goes on the BOM.
Aircraft Engine Mount Fasteners
Drilling Rig Flange Bolting
Roll Cage & Chassis Fasteners
High-Performance Wheel Bolts
Pipeline Flange Stud Bolting
Structural & Bearing Assemblies
Pressure Vessel Closure Bolting
Defence & Automotive Components
SAE 4130 Hex Bolts Manufacturing & Heat Treatment
From Bar Stock To Finished Fastener
A quick look at how AISI 4130 Alloy Steel becomes a finished, quenched and tempered bolt leaving our works.
Hot Forging
Head and shank forged from bar stock, flash trimmed
Thread Rolling
Rolled or cut to nominal diameter, class 2A/2B fit
Quench & Temper
Oil quenched above transformation temperature, tempered 427°C min
Proof Load & Inspection
Hardness, tensile, thread gauging and MPI cleared
Coating & Dispatch
Coated as specified, boxed and shipped with MTC
Steel 4130 Studs Surface Coating & Finish Options
AISI 4130 Bolt chromium falls below stainless thresholds, requiring coatings for chemically aggressive service.
Zinc Electroplating
Cadmium Plating (Aerospace)
Hot-Dip Galvanizing
Phosphate & Oil
PTFE / Xylan Coating
Black Oxide
Plain / As-Machined
Passivated Bright Finish
4130 Steel Anchor Bolts Torque & Proof Load Reference
A Starting Point, Not A Substitute For Design Calculation
Indicative dry-torque values for ASTM A354 Grade BD AISI 4130 Bolt; actual installation torque depends on lubrication, thread class and joint design.
| Size | Tensile Stress Area (mm²) | Proof Load (kN) | Approx. Dry Torque (Nm) |
|---|---|---|---|
| M12 | 84.3 | 69.7 | 170 |
| M16 | 157 | 129.8 | 420 |
| M20 | 245 | 202.7 | 825 |
| M24 | 353 | 292.0 | 1425 |
Proof load = tensile stress area × 827 MPa Grade BD proof strength.
AISI 4130 Bolt vs AISI 4140 Bolt
AISI 4130 Bolt
- Carbon: 0.28 – 0.33%
- Better fusion weldability
- ASTM A354 BC / BD strength levels
- Preferred for aerospace, roll cages, tubing work
AISI 4140 Bolt
- Carbon: 0.38 – 0.43%
- Higher hardenability & wear resistance
- Common base for ASTM A193 B7 studs
- Preferred for shafts, gears, high-torque parts
SAE 4130 Hex Nuts Weight Chart
| Metric Size | UNC Equivalent | Approx. Weight / 100 Pcs (kg) |
|---|---|---|
| M8 | 5/16″ | 1.9 |
| M12 | 1/2″ | 5.4 |
| M16 | 5/8″ | 11.8 |
| M20 | 3/4″ | 21.6 |
| M24 | 1″ | 36.4 |
AISI 4130 Bolt Price In India
What Moves Your Per-Piece Rate
There is no fixed price per kg for AISI 4130 Bolt – these levers decide the number on your quotation.
Send a size-wise quantity list to our Mumbai desk. You get per-piece pricing inside 24 hours with HSN, GST and packing weight already worked out on the quotation.
Alloy 4130 Threaded Rod Testing
An experienced AISI 4130 Bolt Supplier in India delivers fasteners for demanding structural and high-temperature bolting projects.
Core Hardness Test
Rockwell C readings recorded lot wise per ASTM A354
Chemical / PMI Analysis
Spectro reading against AISI 4130 Alloy Steel limits
Proof Load & Tensile Test
Full-size fastener pulled to Grade BC / BD minimums
Thread & Dimensional Gauging
Go / no-go gauging against class 2A/2B thread limits
Heat Treatment Record
Quench and temper cycle logged per batch
Third Party Inspection
SGS, BV, TUV or Lloyd’s arranged before dispatch
AISI 4130 Bolt Frequently Asked Questions
Is AISI 4130 a type of stainless steel?
No, it’s a low alloy steel with too little chromium for stainless corrosion resistance.
Are SAE 4130 and AISI 4130 the same?
Yes, both refer to the same UNS G41300 chromium-molybdenum steel chemistry.
What type of steel is 4130?
A low alloy chromoly steel known for its strength-to-weight ratio and weldability.
What steel is similar to 4130 steel?
AISI 4140, AISI 8740, and DIN 1.7218 (25CrMo4) are the nearest matches.
What strength grade should I order for AISI 4130 Bolt?
ASTM A354 Grade BC for general use, Grade BD for higher 150 ksi tensile needs.
6 Reasons to choose Ganpat Industrial Corporation
- Distributor of Heat Exchanger parts and Alloys for High Temperature applications.
- Stockholder and importer of Ferrous and non ferrous metals.
- Wide stock of prime quality austenitic and Ferritic Stainless Steel for Extreme pressure environment.
- Marine grade steel at lowest price in Mumbai.
- Compare Price per KG in India and China.
- Offer Resale price to local suppliers, traders and wholesalers in UAE, Saudi Arabia, Egypt, and USA