ASTM A193 B7 Bolts
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ASTM A193 B7 Bolts Overview
Mortec At A Glance
Established
Since 2012 • 15+ yrs bolting experience
Manufacturing Units
2 in-house units • Taloja & Mazgaon
Stockyard Area
8,850+ sq.ft • Bulk stud & bolt inventory
Certifications
ISO 9001:2015, PED • GST, IEC & MSME
Clientele
100+ clients • India & export markets
Export Reach
15+ countries • GCC, Africa & Americas
Testing Offered
Tensile, hardness & chemical • MTC EN 10204 3.1
Shipment Documents
Invoice, Packing List • COO, COI, MTC & BL
Table of Content
Custom ASME SA 193 Grade B7 Stud Bolts Manufacturer in India As Per Boiler & Refinery Standard
When a turnaround crew waits on bolting, delays aren't an option. That's why buyers across the Middle East, Africa, and Americas call us first for ASTM A193 B7 bolts. Our ex-stock inventory across common diameters ensures fast dispatch. Confirmed orders clear our Mumbai stockyard within 48 hours, not weeks
Every B7 stud bolt and heavy hex bolt is quenched and tempered to spec. Each order ships with mill test certification, export-ready for long-haul freight. As a direct manufacturer with no trader layers, our grade desk verifies every order first. Diameter, length and coating are confirmed before you commit, so shutdown and new-build orders move with confidence
ASTM A193 B7 Bolts Specification
Request your quote directly from the manufacturer - no middlemen, original MTC included. Established ASTM A193 B7 bolt exporter, shipping globally with full mill certification
A193 B7 Bolt Diameter Range
- 1/4″ to 3″ ex-stock
- Up to 4″ on mill order
Stud Bolt A193 B7 Thread Series & Fit
- UNC, UN, UNF per ASME B1.1
- Class 2A external fit
ASTM A 193 Gr B7 Governing Standards
- ASTM A193/A193M
- ASME SA-193 Grade B7
Sa 193 B7 Paired Nut Standard
- ASTM A194 Grade 2H
- Heavy hex, per ASME B18.2.2
A193 B7 Heavy Hex Bolt Head & Body Style
- Stud, heavy hex bolt, anchor
- Continuous or double-end thread
A193 Gr B7 Stud Bolts Testing & Documentation
- Tensile, hardness, chemical
- MTC, PMI, TPI on request
ASTM A193 B7 Hex Bolts Service Duty
- High-temperature, high-pressure
- Boiler & refinery bolting
SA 193 Gr B7 Supporting Material
- Matching 2H nuts, washers
- VCI-treated export packing
B7 Bolts Manufacturing Origin
- Indian & European mills
- Origin certificate on request
SA 193 B7 Stud Bolt Manufacturing Standards
ASTM A193 B7 Stud Bolts thread is dimensionally checked against these governing codes before dispatch.
Get Extreme-Temperature Resistant A 193 Gr B7 Anchor and Heavy Hex Bolt Immediate Stock for Shutdown Projects
A193 B7 Bolt Types
We are a leading ASTM A193 B7 bolt manufacturer in India, backed by ex-stock inventory across common diameters.
ASTM A193 B7 Stud Bolt
ASME B1.1 • 1/4″–4″- Continuous thread, paired 2H nuts
- Most-ordered flange bolting form
A193 B7 Heavy Hex Bolt
ASME B18.2.1- Wider bearing surface than std hex
- Preferred for structural connections
ASTM A193 B7 Anchor Bolt
L-Bend & J-Bend- Foundation & base-plate anchoring
- Custom bend length on request
A193 B7 All-Thread Rod
Full Length Thread- Cut-to-length on site
- Supports/hangers & tie rods
A193 B7 Tap-End Stud
Double-End Thread- Unthreaded shank between ends
- Used with tapped flange holes
A193 B7 U-Bolt
Pipe Clamp & Support- Formed to line pipe OD
- Used in pipe rack supports
Ex-stock ASTM A193 B7 Bolts Supplier In India, sizes 1/4" through 3
Send diameter, length and quantity - we quote ex-stock and mill-order lead times within hours.
ASTM A193 B7 Bolt Material Composition
Chromium-molybdenum alloy steel chemistry, close to AISI 4140/4142, that gives B7 bolts their through-hardening strength.
ASME SA 193 B7 Heavy Hex Bolt Mechanical Properties
Minimum mechanical properties (room temp) per ASTM A193/A193M, quenched and tempered - values decrease as diameter increases
≤2.5″Diameter Up To 2.5 Inch
2.5–4″Diameter 2.5 To 4 Inch
4–7″Diameter 4 To 7 Inch
ASTM A 193 Gr B7 Anchor Bolt Equivalent Grades
B7 Cr-Mo chemistry has cross-reference equivalents in major standards - confirm the exact match with your governing code before ordering.
ASTM / ASME (USA)
- ASTM A193/A193M Grade B7
- ASME SA-193 Grade B7
- Base steel: AISI/SAE 4140, 4142
DIN / EN (Germany)
- Werkstoff 1.7225 (42CrMo4)
- EN 10269 bolting steel
JIS (Japan)
- JIS G4107 Grade SNB7
BS (United Kingdom)
- BS 4882 Grade B7
ASTM A193 B7 Bolts Manufacturer In India for refinery flange and pressure-vessel bolting
Every heat ships with EN 10204 3.1 documentation - ask for 3.2 third-party witnessed on request.
B7 Vs B7M Vs L7 Stud Bolt Comparison
Same chemistry, different duty - choose based on sour-service or low-temperature needs
Grade B7 (Standard)
- Yield Strength: 105 ksi min (≤2.5″)
- Hardness: 321 HBW max
- Best For: General high-temp/pressure bolting
Grade B7M (NACE Sour Service)
- Yield Strength: 80 ksi max
- Hardness: 235 HBW max
- Best For: NACE MR0175/MR0103 sour gas duty
Grade L7 (Low Temperature)
- Yield Strength: 105 ksi min (≤2.5″)
- Testing: Charpy impact tested to -101°C class
- Best For: Cold-climate & cryogenic piping
Torque Tension Relationship For Astm A193 B7 Bolts And Studs
ASTM A193 sets no fixed torque value - it depends on diameter, preload, and friction (K) factor. We provide a project-specific chart on request
The Working Formula
Typical K-Factor By Finish
A193 Gr B7 Stud Bolts Length & Thread Chart
UNC coarse-thread series per ASME B1.1 for common B7 stud diameters. Lengths cut to your flange class and gasket thickness, standard 2" to 12", longer on request
| Nominal Diameter | UNC Threads Per Inch (TPI) | Typical Standard Length Range |
|---|---|---|
| 1/2″ | 13 | 2″ – 6″ |
| 5/8″ | 11 | 2.5″ – 7″ |
| 3/4″ | 10 | 3″ – 8″ |
| 7/8″ | 9 | 3.5″ – 9″ |
| 1″ | 8 | 4″ – 10″ |
| 1 1/8″ | 7 | 4.5″ – 11″ |
| 1 1/4″ | 7 | 5″ – 11″ |
| 1 3/8″ | 6 | 5.5″ – 12″ |
| 1 1/2″ | 6 | 6″ – 12″ |
Visit our ASTM A193 B7 Bolts Manufacturer In Mumbai unit for sample inspection
Container-ready packing for UAE, South Africa and East Africa bound shipments.
Sa 193 Gr B7 Bolt Coating & Finish Options
ASTM A193 B7 Bolts Exporter with A194 2H nuts and Xylan coating
B7 Stud Bolt Manufacturing Process
Every stud and bolt goes through four stages. From bar stock to a heat-stamped finished piece. As an ISO-certified B7 bolt manufacturer, we ensure consistent hardness across every batch
Bar Cutting
Cr-Mo bar stock cut to blank length on CNC saws.
Quench & Temper
Heat treated to meet B7 tensile and hardness limits.
Thread Rolling
UNC/UN threads rolled to ASME B1.1 class 2A fit.
Test & Mark
Tensile, hardness and PMI testing before heat stamping.
Stud Bolt A193 B7 Delivery Timeline
Once your PO and payment are confirmed, B7 stud bolts leave our Mumbai stockyard per the schedule below - door-to-door time depends on your destination port.
Ex-Stock Dispatch
Ready inventory clears our facility in 2–5 working days
Sea Freight
Lowest-cost mode, transit runs roughly 2–5 weeks by destination
Air Freight
4–8 days for urgent shutdown or breakdown replacement orders
Country-Specific ETA
Give us your destination country for a confirmed arrival window
A193 Gr B7 Testing & Certification
ASTM A193 B7 Hex Bolts supplied quenched, tempered, with EN 10204 3.1 certificate
ASTM A193 B7 Bolts Export Reach Across Our Target Markets
Ex-Mumbai supply lines serving GCC, African, European, American and APAC buyers with ready and mill-order B7 bolting.
UAE
Saudi Arabia
South Africa
Kenya
Uganda
CanadaUnited Kingdom
Turkey
Singapore
Mexico
Thailand
Italy
NetherlandsGermany
Philippines
Malaysia
Indonesia
Vietnam
VenezuelaASTM A193 B7 Bolts Manufacturer in India - PESO & PED Compliant
Send size, quantity and grade for an instant ex-Mumbai price on ASTM A193 B7 bolts.
ASTM A193 Grade B7 Bolts Applications
Industries that specify B7 bolts most often - and why buyers, pan-India and overseas, choose us for fast, reliable dispatch
A193 B7 Bolts FAQs
Quick answers to the questions buyers ask us most before placing an order. As established ASTM A193 Grade B7 Bolts Manufacturers in India, we handle heat treatment, threading and testing in-house.
What are ASTM A193 Grade B7 Bolts dimensions?
- ASME B1.1 UNC / 8UN thread series
- Diameter range: 1/4" to 4" (ex-stock up to 3")
- Lengths from 2" upward, cut to flange class & gasket thickness
- Share your requirement for a full size chart
What is the ASTM A193 Gr B7 Bolts size chart?
- Lists nominal diameter, UNC thread pitch & root diameter
- Covers standard stud lengths per ASME B16.5 / B16.47 flange class
- Strength tiers: up to 2-1/2" → 125 ksi tensile / 105 ksi yield; over 2-1/2" to 4" → 115 / 95 ksi
- Issued as a downloadable reference with every quotation
What are ASTM A193 B7 Stud Bolts?
- Continuous-thread chromium-molybdenum alloy steel rods
- ASTM A193 B7 Stud Bolts Available in full-thread or double-end thread
- Paired with A194 Grade 2H heavy hex nuts & F436 washers
- Used for flange & pressure vessel bolting
What is the A193 B7 Heavy Hex Bolt torque chart?
- Calculated as T = K x D x P
- K depends on finish — plain / black oxide ≈ 0.20
- PTFE or Xylan-coated studs run lower — confirm K with the coating supplier
- Head dimensions to ASME B18.2.1 heavy hex series
- Project-specific chart provided per flange class & gasket type
What is SA 193 B7 equivalent material?
- SA-193 is the ASME version of ASTM A193 — same requirements, used for BPVC code work
- Chromium-molybdenum alloy steel, close to AISI 4140 / 4142 chemistry
- Cross-referenced to JIS SNB7 & BS 4882 Grade B7
- Confirm exact equivalence with your governing code before ordering
Do you supply ASTM A193 B7 Anchor Bolts?
- Straight double-end, L-type & J-type bent anchor bolts
- Quenched & tempered, 1/4" to 3" ex-stock (larger on request)
- Plain, black oxide, PTFE / Xylan or hot-dip galvanised as per your spec
- Supplied with matching 2H nuts & plate washers
What certification do ASTM A193 Grade B7 Bolts Manufacturers provide?
- EN 10204 Type 3.1 mill test certificate with every lot
- Heat number traceability with chemical & mechanical test reports
- Hardness verified after quenching & tempering per ASTM A193
- Third-party inspection (TPI) arranged on request
Authorized Supplier For The Following Companies - Material At Reseller Price For Traders
