Spectro Analysis Certified Hastelloy B2 Fastener Manufacturer Ex-Stock M6–M64, MTC EN 10204 3.1 & 3.2 Machining & Bar Stocking In-House Since 2012

Hastelloy B2 Fasteners

Hastelloy B2 Fasteners Key points

Sizes In StockM6 to M64, Metric Coarse Series
Delivery TimeEx-Stock: 2–5 Days • Mill-Order: 4–6 Wks
Grade / UNSUNS N10665 / WNR 2.4617
Governing StandardASTM F467, F468, Base Bar B335
TemperSolution Annealed (SA), Rb 100 max
Alloying Elements26–30% Mo, Ni Balance
FormsBolt, Nut, Washer, Stud, Screw
MTC CertificateEN 10204 3.1 and 3.2
Thread SeriesMetric Coarse, ISO 965
LogisticsEx-Mumbai, Sea & Air Freight
HCl-Grade Resistance
All Concentrations
Engineered for hydrochloric & sulfuric acid duty
M6 to M64
Full Metric Range
Bolts, nuts, washers & studs held ready to ship
In-House Machining
Since 2012
Own CNC shop, not a trading counter
Spectro Verified
Every Heat Checked
Positive material identification before dispatch
Direct Exporter
No Trading Layers
Mill-direct documentation, cleared for 19+ countries
As-Welded Ready
Low-Carbon Chemistry
Resists HAZ carbide precipitation after welding
hastelloy b2 fasteners

 

0 · at glance

Mortec At A Glance

Established

Since 2012 15+ yrs experience

Manufacturing Units

2 in-house units Taloja & Mazgaon

Stockyard Area

8,850+ sq.ft Ready-stock inventory

Certifications

ISO 9001:2015, ADNOC GST, IEC & MSME

Clientele

100+ clients India & export markets

Export Reach

19+ countries GCC, Africa & APAC

Testing Offered

Mechanical, chemical & PMI MTC EN 10204 3.1 & 3.2

Shipment Documents

Invoice, Packing List COO, COI, MTC, BL & Lab Report

High Strength ASTM F468 UNS N10665 Studs Manufacturer in India at Best Price

When a joint sits inside a hydrochloric or sulfuric acid stream, an ordinary corrosion-resistant bolt simply will not last - Hastelloy B2's nickel-molybdenum chemistry is what earns it a place on the drawing. Buyers across South Africa, the UAE, Kenya and Canada come to us because our ex-stock inventory across M6 to M64 metric sizes means an order confirmed today ships within days, not weeks.Suppliers of UNS N10665 Eye Bolts and Washer for Reducing Acid Service at Best Price

Every Hastelloy B2 fastener leaves our Mumbai facility with full mill test certification and export packing built for long-haul freight. As a direct manufacturer, not a trading desk, we quote from bar stock - better pricing, faster answers, and a technical team that checks your acid duty, weld condition and thread pitch before you commit.

01 · Specification

Hastelloy B2 Fasteners Specification

Direct global exports with MTC from a Hastelloy B2 Fasteners manufacturer in India.

hastelloy b2 fasteners specification  

Hastelloy B2 Fastener Head & Drive Styles

  • Hex, socket, eye, wing
  • Custom head to drawing on request

ERNiMo-7 Weld Filler Compatibility

  • Matched filler for site welding
  • No post-weld heat treatment needed

UNS N10665 Surface Condition

  • Mill finish, no passivation required
  • Machined or as-turned on request

Alloy B2 Fastener Testing Methods

  • PMI, tensile, corrosion spot check
  • Third-party inspection on request

Grade B2 Supporting Hardware

  • Matching Hastelloy B2 washers
  • Lock nuts to order

B2 Fastener Manufacturing Origin

  • Indian & US mill-sourced bar
  • Origin certificate on request

Hastelloy B2 Fasteners Manufacturer In Mumbai Since 2012

Share your acid duty, size and quantity - our CNC shop returns an ex-stock or mill-order lead time the same business day.

Request Quote Now
02 · Size Range

Hastelloy B2 Bolts Size Chart

Popular Sizes M8 M10 M12 M16 M20 M24
Metric Coarse Thread Pitch - ISO 261 (mm)
Nominal SizeCoarse Pitch (mm)Nominal SizeCoarse Pitch (mm)
M61.00M303.50
M81.25M364.00
M101.50M424.50
M121.75M485.00
M162.00M565.50
M202.50M646.00
M243.00--

What Changes The Size On Order

Thread SeriesCoarse is default; fine pitch on request
LengthCut to drawing, any length within M64 range
Head/DriveChanges across-flats and head height, not thread
FormBar-turned or forged blanks machine differently

Need An Exact Dimension Drawing?

Share your size, drive type, length and quantity and we’ll return a dimensioned drawing alongside your quotation - useful for fitment checks before you order.

Request Size Chart

Get DIN 2.4617 Threaded Rod and Bolts in Sulfuric Acid & Hydrochloric Acid

03 · Product Range

Hastelloy B2 Fastener Types

Leading Hastelloy B2 fasteners supplier in India with ex-stock drive and thread inventory.

Hastelloy B2 Heavy Hex Bolt

Hastelloy B2 Heavy Hex Bolt

ASTM F468 • M6–M64
  • Solution-annealed bar, machined to size
  • Best for reducing-acid flanged joints
UNS N10665 Hex Nut

UNS N10665 Hex Nut

ASTM F467 • M6–M64
  • Matched proof load to F468 bolts
  • Available heavy hex on request
Hastelloy B2 Flat Washer

Hastelloy B2 Flat & Spring Washer

DIN 125 / DIN 127 • Custom OD
  • Load spread & vibration resistance
  • Matched thickness to bolt size
DIN 2.4617 Threaded Rod

DIN 2.4617 Threaded Rod / Stud Bolt

ASTM F468 • Custom Length
  • Full or partial thread, cut to length
  • Used with double-ended tap fittings
Hastelloy 2.4617 Eye Bolt

Hastelloy 2.4617 Eye Bolt

Custom • M8–M42
  • Lifting & tie-down points on tanks
  • Forged or bar-turned on request
WNR 2.4617 Hex Cap Screw

WNR 2.4617 Hex Cap Screw

ASTM F468 • M6–M42
  • Full thread option for shallow tapped holes
  • Consistent grip length across a batch
07 · Codes We Follow

Alloy B2 Nuts Governing Manufacturing Standards

Every Hastelloy B2 fastener we produce is checked against these governing specifications before dispatch.

ASTM B335 (Bar)
ASTM B333
ASTM B564 (Forgings)
ASTM F467 (Nuts)
ASTM F468 (Bolts/Studs)
ASME SB-335
DIN 2.4617
Client-Specific
04 · Composition

UNS N10665 Studs Chemical Composition

Alloy B2's low-carbon, near-chromium-free chemistry is what drives its reducing-acid resistance and weldability.

Chemical Composition - UNS N10665 (% by weight)
NiBalanceNickel
Mo26.00–30.00Molybdenum
Fe2.00 maxIron
Cr1.00 maxChromium
Co1.00 maxCobalt
Mn1.00 maxManganese
Si0.10 maxSilicon
P0.040 maxPhosphorus
S0.030 maxSulfur
C0.02 maxCarbon
05 · Strength Data

WNR 2.4617 Bolt Mechanical Properties

Values reflect solution-annealed (SA) Hastelloy B2 bar per ASTM B335, the alloy is not hardenable by heat treatment.

Tensile Strength (SA)760 MPa min
0.2% Yield Strength (SA)350 MPa min
Elongation (SA)40% min in 50mm
Hardness (SA)Rockwell B 100 max
06 · Cross-Reference

Hastelloy B2 Fasteners Material Equivalent Grades

Alloy B2/UNS N10665 carries equivalent designations across major standards sharing the same nickel-molybdenum chemistry.

USAASTM (USA)

  • UNS N10665
  • ASTM B335 (Bar)
  • ASTM F468 (Bolts/Studs)
  • ASTM F467 (Nuts)

GermanyDIN / EN (Germany)

  • Werkstoff 2.4617
  • EN NiMo28
  • DIN 17752

JapanJIS (Japan)

  • NW0665
  • JIS H4552 (Tube/Bar)

FranceAFNOR (France)

  • NU-30M

ChinaGB/T (China)

  • GB/T 15007
  • Procured to ASTM B622 in tube form
08 · Buyer Question

DIN 2.4617 Bolt Resistance In Boiling HCl & H2SO4

Hastelloy B2 is built for reducing acids, in oxidizing air it should stay below 538°C (1000°F) to avoid a ductility dip.

HCl, All Conc.: Excellent
Sulfuric Acid: Good
Acetic Acid: Good
Phosphoric Acid: Good
Oxidizing Limit: 538°C
As-Welded: Suitable
09 · Comparison

Hastelloy B2 vs C276 vs C22 Fasteners

As a direct manufacturer, we help you weigh the three Hastelloy fastener families side by side.

Hastelloy B2 (N10665)

  • Family: Ni-Mo, near-zero Cr
  • Chromium: 1.00% max
  • Strongest In: Pure reducing acids (HCl)
  • Best For: Oxidizer-free HCl duty
  • Relative Cost: High

Hastelloy C276 (N10276)

  • Family: Ni-Cr-Mo-W
  • Chromium: 14.5–16.5%
  • Strongest In: Mixed reducing/oxidizing streams
  • Best For: Flue gas desulfurization, sour gas
  • Relative Cost: High

Hastelloy C22 (N06022)

  • Family: Ni-Cr-Mo-W
  • Chromium: 20.0–22.5%
  • Strongest In: Oxidizing chlorides & mixed acids
  • Best For: Pharma, pulp bleach plants
  • Relative Cost: Highest

UNS N10665 Fastener Exporter In India To Durban, South Africa

Container-ready B2 bolt, nut and threaded rod pricing for Durban and Cape Town-bound shipments within days.

Request Export Quote
10 · Fabrication

Nickel B2 Studs As-Welded Corrosion Behaviour

Why site-welded B2 joints hold up without extra heat treatment as a Hastelloy B2 Fasteners Exporter.

1

Low-Carbon Base

0.02% max carbon starves grain-boundary carbide formation.

2

HAZ Protection

Heat-affected zone stays free of knife-line attack risk.

3

ERNiMo-7 Filler

Matched filler wire keeps weld metal chemistry in range.

4

No PWHT Needed

Joints go straight into HCl service after inspection.

11 · Buyer Caution

Hastelloy Alloy B2 Screws Oxidizing Contaminant Limits

B2's near-zero chromium is a strength in pure reducing acid and a limit worth flagging before you order.

Avoid Ferric Chloride Traces
Avoid Cupric Salt Contamination
Avoid Dissolved Oxygen In HCl
Mixed/Oxidizing Duty: Consider C276
12 · Industries

UNS N10665 Fasteners Applications

Industries prefer us as their Hastelloy B2 fastener supplier in India for reliable dispatch.

HCl Production & Handling
Pumps & Valves
Reactors & Heat Exchangers
Sulfuric & Phosphoric Acid Plants
Pharmaceutical Equipment
Pulp & Paper Processing
Gas Scrubbing Systems
Vacuum Furnace Components

ASTM F468 Bolt Supplier In Ahmedabad - Spectro Verified

Ahmedabad and Gujarat-belt buyers get the same spectro-checked B2 stock as our export accounts.

Get Supplier Quote
Global Reach

Where Our Hastelloy B2 Fasteners Ship

Ex-stock and mill-order dispatch to buyers across the Gulf, Africa, the Americas and Asia-Pacific, alongside strong domestic demand from Mumbai, Ahmedabad, Bengaluru, Chennai and Pune.

Key Export Markets
UAEUAE
Saudi ArabiaSaudi Arabia
TurkeyTurkey
CanadaCanada
UKUnited Kingdom
SingaporeSingapore
USAUnited States
MexicoMexico
ThailandThailand
ItalyItaly
NetherlandsNetherlands
GermanyGermany
PhilippinesPhilippines
MalaysiaMalaysia
UgandaUganda
IndonesiaIndonesia
South AfricaSouth Africa
VietnamVietnam
VenezuelaVenezuela
13 · Turnaround

Hastelloy 2.4617 Eye Bolts Delivery Timeline By Shipping Mode

Once your Hastelloy B2 order is confirmed, here is what to expect based on how it ships out of Mumbai.

Ex-Stock Dispatch

Bar-stock sizes leave our machine shop within 2–5 working days of PO

Sea Freight

Budget-friendly for bulk B2 orders, generally 1–4 weeks to arrival

Air Freight

3–7 days when a plant shutdown can't wait for sea transit

Country-Specific ETA

Send your port or city and we'll confirm a firm arrival window

14 · Quality

WNR 2.4617 Hex Cap Screws Testing & Certification

Each check requested against your PO is logged on the accompanying mill test certificate.

PMI Testing
Tensile & Proof Load Test
Hardness Test
Dimensional Check
MTC 3.1
Spectro Chemical Analysis
Third-Party Inspection
Heat Number Traceability
15 · FAQs

Hastelloy B2 Fasteners FAQs

Quick buyer FAQs from a direct, in-house Hastelloy B2 fastener manufacturer.

What are the main components of Hastelloy B2?

Nickel-molybdenum alloy: nickel balance, 26-30% molybdenum, max 1% chromium, max 2% iron.

What is the hardness of Hastelloy material?

Solution-annealed B2 bar has max hardness of Rockwell B 100, varying by form.

What are the key differences between Hastelloy B and Hastelloy B2?

B2 has tighter carbon control and less iron, giving better as-welded corrosion resistance.

What is the equivalent material for Hastelloy B2?

UNS N10665, Werkstoff/DIN 2.4617, EN NiMo28, and JIS NW0665.

What is Hastelloy used for?

Corrosion-resistant reactors, pumps, valves, heat exchangers, and fasteners in chemical processing plants.

Hastelloy B2 Fasteners - Built On Trust With Mortec
Low-carbon B2 chemistry resists HAZ carbide attack after welding
Ex-stock M6–M64 bar for bolts, nuts, washers & studs
Every B2 fastener heat spectro-verified against UNS N10665
Custom head, length & ERNiMo-7 weld prep on export orders

Materials



Certifications & Credentials
Certified to PED 2014/68/EU for the manufacture of forged steel products
Stock, distribute and trade Steel Flanges, Nuts and Bolts, and precision-machined parts in Nickel Alloys, High Temperature Alloys and Super Alloys
Since 2012, exporting Oil and Gas piping items built to NACE MR0175 / ISO 15156 across the Egypt, Tunisia, Netherlands, Azerbaijan, South Africa, Algeria, Saudi Arabia and Morocco
Hold the largest import and stock inventory of bolting accessories, in both ferrous and non-ferrous metals, in India

Authorized Supplier For The Following Companies - Material At Reseller Price For Traders

Associated Companies - ADNOC, SABIC, Saudi Aramco, GASCO, ORPIC, KNPC, QATARGAS

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