What Makes Ganpat Industrial A Reliable Mill Source For Alloy Steel B6 Bolt?
Quote In 24 Hours
Share diameter, length and quantity before 6 PM IST for next-morning pricing
Heat-Traceable 410 Stainless
Every Alloy Steel B6 Bolt carries a heat number back to the mill test certificate
Bolts, Studs & Nuts On Rack
Hex bolts, stud bolts, threaded rod and A194 Gr 6 nuts held in Mumbai stock
Same-Week Dispatch
Rack sizes leave Mumbai within 5 working days of PO release
Zero Rejection Cost
Chemistry, hardness and dimensional checks cleared before the box is sealed
Alloy Steel B6 Bolt Key Points
- 1Material Basis: ASTM A193 Grade B6 Alloy Steel Bolts • 12% Chromium Martensitic Stainless (AISI/Type 410) • UNS S41000
- 2Governing Standards: ASTM A193 / ASME SA193 Grade B6 • Mating Nuts To ASTM A194 Grade 6
- 3Size Range: M6 / 1/4″ up to M100 / 4″ diameter Alloy Steel B6 Studs, Stud Bolts and Threaded Bar
- 4Form: Alloy Steel B6 Hex Bolt • Alloy Steel B6 Stud • Threaded Rod • Allen, Square, T & Anchor Bolt
- 5Equivalents: AISI / Type 410 • DIN 1.4006 (X10Cr13) • JIS SUS410 • SAE 51410
- 6Mating Hardware: ASTM A194 Grade 6 Hex Nut, Coupling Nut, Dome Nut and SS 410 Washer ex-stock
Mumbai works desk • WhatsApp +91 85912 64209 • Rack sizes dispatch the same week
Ganpat Industrial Corporation is a trusted Alloy Steel B6 Bolt Supplier in India. We have dispatched from our Mumbai stockyard since 1997. Alloy Steel B6 Bolts are made from 12% chromium martensitic stainless steel. They are quenched and tempered to a minimum tensile strength of 760 MPa. Buyers order Alloy Steel B6 Bolts to resist mild corrosion and sour atmospheres. A fastener must handle elevated service temperature without dropping bolt load. We stock and cut the ASTM A193 Grade B6 Alloy Steel Hex Head Bolt. We also supply the Alloy Steel B6 Stud and Threaded Rod. These match our stocked ASTM A194 Grade 6 nuts. Every heat is tested for chemistry, tensile and hardness before it leaves our works. We ship from Mumbai to Vadodara, Chennai and Kandla. We export Alloy Steel B6 Bolts to Jebel Ali, Dammam, Singapore and Rotterdam.
Mumbai · 12% Chromium Stainless Bolting Manufacturer & Stockist
Alloy Steel B6 Bolts Machined, Quenched And Tempered For Pressure-Tight Flange Joints
Ganpat Industrial is a trusted Alloy Steel B6 Bolt Supplier in India dispatching from Mumbai. We stock ASTM A193 Grade B6 Bolts, Studs and Threaded Bar with EN 10204 3.1 certification.
- ✓ISO 9001:2015
- ✓ISO 14001:2015
- ✓OHSAS 18001:2007
- ✓PED Certified
- ✓Petrofac Approved
Heavy-Duty UNS S41000 Hex Bolt Manufacturer in India with MTC
Specification Of Alloy Steel B6 Bolt
Order Sheet In One Glance
Everything a purchase engineer normally emails us for on B6 Alloy Steel Bolts, listed before you pick up the phone.
Alloy Steel B6 Bolts Material Basis
- ASTM A193 Grade B6
- 12% Chromium Martensitic Stainless
- AISI / Type 410 Base Grade
- UNS S41000
Governing Bolting Standards
- ASTM A193 / ASME SA193 Gr B6
- ASTM A276 / A484 Bar Stock
- ASTM A194 Grade 6 Nuts
- ASME B18.2.1 / B18.3 Dimensions
Alloy Steel B6 Bolt Size Range
- 1/4″ (M6) up to 4″ (M100)
- Length: 20 mm up to 600 mm
- Custom drawing sizes on request
- UNC, UNF & Metric Coarse Thread
Alloy Steel B6 Bolt Form
- Hex Head & Heavy Hex Bolt
- Alloy Steel B6 Stud & Stud Bolts
- Threaded Rod / Threaded Bar
- Allen, Square, T & Anchor Bolt
Alloy Steel B6 Bolt Delivery Condition
- Quenched & Tempered
- Min Tempering Temp 593°C
- Bright / Black / Passivated Finish
- Straightened & Thread Rolled
Alloy Steel B6 Bolt Production Route
- Hot Forged / Bar Stock Machined
- Cold Formed On Small Diameters
- Thread Rolled After Heat Treatment
- Centreless Ground Bar Option
Alloy Steel B6 Bolt Alloy Steel B6 Studs Testing Offered
- Chemical / PMI Spectro Analysis
- Tensile, Yield & Elongation
- Hardness Check Per Heat
- Third Party Inspection
Recommended Mating Hardware
- ASTM A194 Grade 6 Hex Nut
- B6 Alloy Steel Coupling Nut
- SS 410 Flat & Spring Washer
- Alloy Steel B6 Wing Nut
Alloy Steel B6 Bolt Packing
- Poly Bagged And Boxed By Size
- VCI Paper For Sea Freight
- Bundled With Steel Strips (Bar)
- Fumigated Wooden Crates
Types Of Alloy Steel B6 Bolt We Supply
A leading Alloy Steel B6 Bolt Manufacturer in India forges common head and rod patterns.
ASTM A193 Alloy Steel B6 Hex Head Bolt
Hex Head
Alloy Steel B6 Stud Bolts
Double End
Alloy Steel B6 Threaded Rod
Cut To Length
Alloy Steel B6 Allen Bolt
Socket Head
Alloy Steel B6 Square Bolts
Square Head
Alloy Steel B6 Counter Sunk Bolt
Flush Fit
Alloy Steel B6 J Bolt
Hook Anchor
Alloy Steel B6 Anchor Bolt
Foundation Fixing
Need Alloy Steel B6 Bolts Above 2″ Diameter?Mail the diameter, length and quantity – we quote hex bolts, studs or threaded bar the same day.
Alloy Steel B6 J Bolt Head Types, Drive Styles & Thread Standards
Pick The Head Before You Pick The Length
Alloy Steel B6 Bolt is forged and machined into every common head pattern used on flanged and structural joints.
Head Styles
Hex & Heavy Hex
Square, Allen, Countersunk, T & J Bolt on request
Thread Series
UNC / UNF
8 TPI series above 1″ dia, Metric coarse available
Dimension Standard
ASME B18.2.1
Socket products to ASME B18.3
Thread Fit
Class 2A / 2B
Tighter classes on drawing-based orders
Alloy Steel B6 Square Bolts Manufacturing & Heat Treatment Process
From Bar Stock To Finished Bolt
A quick look at how AISI 410 bar stock becomes a finished Alloy Steel B6 Bolt leaving our works.
Bar Stock Cutting
410 stainless bar cut to blank length per size
Forging / Heading
Head formed hot or cold depending on diameter
Quench & Temper
Oil quenched, tempered 593°C minimum, 1 hour hold
Thread Rolling
UNC / UNF or metric thread rolled after heat treatment
Inspection & Dispatch
Chemistry, hardness and dimensions cleared, MTC issued
Bright / As-Machined Finish
Black Oxide Finish
Passivated To ASTM A967
Ground & Polished Finish
Alloy Steel b6 Bolt Delivered Weekly to the Following Countries
| Export to | Countries | Continent | Ports | Shipping time |
|---|---|---|---|---|
 |
UAE | Asia | Mina Rashid | 5 days |
 |
Thailand | Asia | Laem Chabang | 7 |
 |
Germany | Europe | Bremerhaven | 20 |
Alloy Steel B6 Stud Chemical Composition
IronFe
Balance
ChromiumCr
11.5 – 13.5%
CarbonC
0.08 – 0.15%
ManganeseMn
1.00% max
SiliconSi
1.00% max
PhosphorusP
0.040% max
SulphurS
0.030% max
B6 Alloy Steel Coupling Nut Mechanical Properties
The Numbers Your Inspector Will Ask For
Baseline mechanical values for Alloy Steel B6 Bolt in the quenched and tempered condition, up to 4″ (M100) diameter.
Tensile Strength
760 MPa Min
110 ksi
Yield Strength
585 MPa Min
85 ksi
Elongation In 4D
15% Min
Gauge 4D
Reduction Of Area
50% Min
Ductility
Diameter Range
Up To 4″ / M100
Single property class across the full range
Min Tempering Temp
593°C / 1100°F
Held at temperature minimum 1 hour
Hardness (B6)
Not Capped
B6X variant capped at 26 HRC for sour service
Heat Treatment
Quenched & Tempered
Oil quench, temper 593°C minimum
Alloy Steel B6 Bolt Equivalent Grades
One Chemistry, Many Nameplates
ASTM A193 Grade B6 describe 12% chromium martensitic chemistry across different national standards.
ASTM / UNS
- ASTM A193 Grade B6
- UNS S41000
- AISI / Type 410
SAE / BS
- SAE 51410
- BS 410S21
- Magnetic, Hardenable Grade
DIN / Werkstoff
- DIN 1.4006
- X10Cr13
- Close Chemistry Match
JIS
- JIS G4303 SUS410
- Martensitic Stainless
- Comparable Cr Content
Nearby ASTM Bolting Grades
- ASTM A193 B6X (sour service)
- ASTM A193 B8 (304 austenitic)
- ASTM A193 B7 (Cr-Mo alloy steel)
Indian Market Note
- No single-number IS equivalent
- Compared on chemistry basis
- Ordered directly as A193 Grade B6
Physical Properties Of CrMo B6 Dome Nuts
Trust top Alloy Steel B6 Bolt supplier in India for high-temperature fastening solutions.
Density
7.74 g/cm³
0.28 lb/in³
Melting Range
1480 – 1530 °C
2700 – 2790 °F
Modulus Of Elasticity
200 GPa
29 x 10&sup6; psi
Electrical Resistivity
22.5 µΩ-cm
At 20°C, annealed condition
Buy ASTM A193 B6 Alloy Steel Nut and Studs in Bright Finish at Unbeatable Prices
Recommended Nuts, Washers & Mating Hardware
Complete The Joint, Not Just The Bolt
A fastener stockist that also carries matching internally-threaded hardware saves a second purchase order.
ASTM A193 B6 Alloy Steel Nut
- Supplied To ASTM A194 Grade 6
- Alloy Steel B6 Nut / Alloy Steel B6 Nuts
- Hex, Heavy Hex & Square Nut
- 410 Stainless, Quenched & Tempered
B6 Alloy Steel Coupling Nut
- Long-Body Rod Coupler
- Joins Two B6 Threaded Rod Lengths
- Full Thread Engagement
- Same 410 Stainless Chemistry
Chrome Moly B6 Nuts
- Trade Name Used By Some Buyers
- Chemistry Is Straight-Chromium 410
- Not Chromium-Molybdenum Steel
- Confirm Chemistry On Order
CrMo B6 Dome Nuts
- Acorn / Cap Style Closed Top
- Protects Exposed Rod End
- Bright Or Polished Finish
- Common Trade Name, See Note Above
B6 Alloy Steel Shoulder Nuts
- Recessed Shoulder For Cover Fit
- Used In Panel & Enclosure Bolting
- Matches B6 Bolt Thread Pitch
- Bright Or Black Finish
Alloy Steel B6 Wing Nut
- Hand-Tightened Wing Grip
- Used For Removable Covers
- Same 410 Stainless Chemistry
- Bright Finish Standard
SS 410 Flat & Spring Washer
- Recommended Washer Grade
- Distributes Bolt-Head Load
- Prevents Joint Loosening
- Cut To Match Bolt OD
Order Bolt & Nut Together
- Matched Heat-Traceable Sets
- Single MTC Covers Both Items
- Same-Week Dispatch On Rack Sizes
- Quote Both On One WhatsApp Message
HSN Code & GST On B6 Alloy Steel Bolts
A reliable Alloy Steel B6 Bolt supplier in India guarantees strict ASTM A193 material compliance.
Application Of ASTM A193 B6 Alloy Steel Nut
Where This 12% Chromium Bolt Goes To Work
Anywhere a joint needs mild corrosion resistance along with high clamp load, Alloy Steel B6 Bolt earns its place on the BOM.
Oil & Gas Flange Bolting
Valve & Pump Assemblies
Petrochemical Piping Joints
Marine & Offshore Fastening
Heat Exchangers & Condensers
Pharma & Food Process Equipment
Power Plant Boiler Bolting
Structural Stainless Assemblies
Monthly Delivery Of Alloy Steel B6 Bolt To Below Countries
| Export To | Continent | Shipping Time |
|---|---|---|
 UAE |
Asia | 7 Days |
 Saudi Arabia |
Asia | 10 Days |
 Nigeria |
Africa | 26 Days |
 Netherlands |
Europe | 28 Days |
 Singapore |
Asia | 14 Days |
Alloy Steel B6 Bolt vs ASTM A193 B7 Bolt
The two most-asked-about ASTM A193 grades solve different problems on the same flange.
Alloy Steel B6 Bolt (410 Stainless)
- 12% chromium martensitic stainless steel
- Mild corrosion & oxidation resistance
- 110 ksi (760 MPa) minimum tensile
- Preferred where B7 would rust or pit
- Matches ASTM A194 Grade 6 nuts
ASTM A193 B7 Bolt (Cr-Mo Alloy Steel)
- Chromium-molybdenum low alloy steel
- No inherent corrosion resistance
- 125 ksi (860 MPa) minimum tensile
- Default choice for carbon steel flanges
- Matches ASTM A194 Grade 2H nuts
Alloy Steel B6 Threaded Bar Torque & Installation Guidance
Get The Clamp Load Right The First Time
General sequence we share with site teams installing Alloy Steel B6 Bolt on flanged joints.
Confirm Torque Value With Design Engineer
Torque depends on diameter, lubrication and gasket type – always drawing-specific
Apply Anti-Seize On Stainless Threads
410 stainless is prone to galling; a compatible anti-seize is recommended
Tighten In A Star / Cross Pattern
Even load distribution avoids gasket distortion on flanged joints
Re-Check Torque After First Thermal Cycle
Bolt load can relax once the joint reaches service temperature
Ready Stock, MOQ & Dispatch Lead Time
From Enquiry To Gate Pass
No hidden waiting. This is the actual clock on an Alloy Steel B6 Bolt order.
Day 0 – Enquiry
Mail the diameter, length and quantity list to our Mumbai desk
Day 1 – Quote
Per-piece rate with HSN, GST and packed weight
Day 2 – Inspection
Chemistry, hardness and dimensional cleared, TPI called if needed
Day 4 – Dispatch
Rack sizes leave with LR copy and full document set
Rack Stock
1/4″ – 2″
Hex bolts, studs and threaded rod held in Mumbai
Minimum Order
100 Pieces
Per size, trial lots considered on request
Large Dia Lead Time
10 – 15 Days
Above 2″ diameter, indented against order
Export Transit
Nhava Sheva
Air or sea, FOB CFR CIF DDP quoted
Alloy Steel B6 Studs Testing
Every heat of Alloy Steel B6 Bolt is tested against the specification before release.
Chemical / PMI Analysis
Spectro reading against ASTM A193 B6 composition limits
Tensile & Yield Test
Pull test confirms 760 MPa tensile, 585 MPa yield minimum
Hardness Test
Brinell / Rockwell readings recorded lot wise
Dimensional Inspection
Thread, head and length checked against ASME B18.2.1
Heat Treatment Record
Quench and temper cycle logged per batch
Third Party Inspection
SGS, BV, TUV or Lloyd’s arranged before dispatch
Alloy Steel B6 Wing Nut Export Packing
Arrives The Way It Left Mumbai
Packing is matched to bolt size and shipping mode, air, sea or domestic road.
Poly Bag & Carton By Size
VCI Paper For Sea Freight
Fumigated Wooden Crates
Steel Strip Bundling On Bar
Alloy Steel B6 T Bolt Documentation
Mill Test Certificate On Every Alloy Steel B6 Bolt Heat
Every lot of Alloy Steel B6 Bolt is issued an EN 10204 3.1 Mill Test Certificate carrying heat number, chemistry and mechanical test results, cross-checked against ASTM A193 Grade B6 limits before dispatch.
Chemical Analysis Report
Spectro reading against Alloy Steel B6 Bolt composition limits
Every Order
Mechanical Test Report
Tensile, yield, elongation and hardness recorded lot wise
Every Order
Dimensional Inspection Sheet
Thread, head and length checked against ASME B18.2.1
Every Order
Certificate Of Origin
Chamber attested for customs clearance abroad
Export Orders
Packing List & Invoice
Piece count, net and gross weight, HSN and GST
Every Order
Alloy Steel B6 Bolt Frequently Asked Questions
What material is Alloy Steel B6 Bolt made from?
Made from 12% chromium martensitic stainless steel, equivalent to AISI Type 410, quenched and tempered.
Where are Alloy Steel B6 Square Bolts used?
Used in flanged connections and structural fittings needing corrosion resistance with a square-drive head design.
What length options exist for Alloy Steel B6 Stud?
Available in standard rack sizes or cut, threaded and heat treated to custom drawing lengths.
What is a B6 Alloy Steel Coupling Nut used for?
Joins two threaded rods or studs end-to-end, maintaining alignment and load transfer in assemblies.
When are CrMo B6 Dome Nuts recommended?
Recommended where a finished, protective cap is needed to cover exposed bolt or stud threads.
We Collaborate With Traders in the Following Locations
| Regions | Country |
|---|---|
| Gulf Coast | USA |
| North America | USA, Canada, Mexico |
| South America | Brazil, Argentina, Colombia |
| North Africa | Egypt, Morocco, Algeria |
| West Africa | Nigeria, Ghana, Senegal |
| East Africa | Kenya, Ethiopia, Tanzania |
| Middle East | Saudi Arabia, UAE, Iraq |
| South Asia | India, Pakistan, Bangladesh |
| East Asia | China, Japan, South Korea |
| Oceania | Australia, Fiji, Papua New Guinea |