ASTM A105 Flange Quick Specification
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, PED • GST, IEC & MSME
Clientele
100+ clients • India & export markets
Export Reach
19+ countries • GCC, Africa, Europe & APAC
Testing Offered
Tensile, hardness & dimensional • MTC EN 10204 3.1
Shipment Documents
Invoice, Packing List • COO, COI, MTC, BL & Lab Report
Table of Content
Wear-Resistant ASME SA 105 Blind Flanges Manufacturer in India, Refer Dimension
A delayed flange delivery can stall your entire project. EPC contractors and MRO buyers trust our ASTM A105 flanges. We stock blind, slip-on, weld neck and socket weld forms. Threaded and lap joint types ship ex-stock too. Your order moves within days, not weeks.
Every ASME SA 105 flange ships with full mill test certification. Export-grade packing protects each shipment on long-haul freight. We forge direct, skipping trader layers and markups. This keeps pricing sharp and technical answers fast. Our grade desk confirms face type and class first. You order with full confidence, not guesswork.
ASTM A105 Flange Specification
Order direct from the forge - no middlemen, MTC included on every dispatch. We export ASTM A105 flanges worldwide
ASTM A105 Class 150 Weld Neck Flange Dimensional & Drilling Standards
- ASME B16.5 (NPS ½-24″)
- ASME B16.47 Series A & B (NPS 26-60″)
- MSS SP-44 large-diameter drilling
Sa105 Expander Flange Third-Party Inspection & NDE
- Ultrasonic & magnetic particle testing
- PMI (positive material identification)
A105 Steel Blind Flange NACE Sour Service Compliance
- NACE MR0175 / ISO 15156 on request
- Hardness capped at 22 HRC for sour duty
ASTM A105 Slip On Flange Surface Protection Options
- Black oxide / as-forged finish
- Epoxy coat or hot-dip galvanized
SA 105 Spectacle Blind Flanges Documentation Package
- MTR, COC, COO & hydrotest report
- Heat-number traceable MTC 3.1
ASTM A105N Slip On Flange Delivery Condition
- As-forged or proof-machined face
- Fully machined to your drawing
ASTM A105 Flange Manufacturing Standards
Every flange we forge is dimensionally checked against these governing codes before dispatch.
Long-Lasting Carbon Steel A105 Slip-On Flange with RF, FF & RTJ Face Type at Best Price
ASME SA 105 Flange Product Types
We are a leading ASTM A105 flange supplier in India, backed by ex-stock inventory across every common form.
SA105 Blind Flange
ASME B16.5 • RF / FF / RTJ- Seals pipe ends & test points
- Solid disc, no bore
Carbon Steel A105 Slip-On Flange
Fillet Weld • Fast Alignment- Slides over pipe, double-welded
- Moderate pressure duty
ASME SA105 Weld Neck Flanges
Butt Weld • High Pressure- Tapered hub for cyclic loads
- Preferred for thermal service
A105 Socket Weld Flanges
Small Bore • NPS ½″–4″- Fillet-welded, smooth bore
- Good for high-pressure small lines
A105 Carbon Steel Threaded Flange
NPT Bore • Weld-Free Fit- No welding, fast field install
- Non-critical, low-temperature lines
ASTM A105 Lap Joint Flange
Paired With Stub End- Rotates free for bolt-hole alignment
- Used with SS or alloy stub end
ASTM A105 Flange Manufacturer In India With With Ex-Stock Dispatch in 2-5 Days
Factory-direct pricing on blind, slip-on and weld neck flanges, faced to your P&ID callout.
A105 Blind Flange Material Composition
ASTM A105 Forged Steel Flanges Mechanical Test Values
A105N Flange Cross-Border Material Match
Closest international forging-grade cross-references - share your drawing standard for an exact match
ASTM / ASME (USA)
- ASTM A105 / A105N
- ASME SA105
- ASME B16.5 / B16.47
EN / DIN (Germany)
- EN 10222-2 P250GH (1.0460)
- DIN 17243 C22.8
BS (United Kingdom)
- BS 1503 161-430A forging grade
- Cross-checked against EN 10222-2
JIS (Japan)
- JIS G3202 SFVC1
- Forged flange & fitting grade
IS (India)
- IS 2004 Class 2
- Forged carbon steel component grade
SANS (South Africa)
- SANS 1123 flange dimension series
- Material cross-checked to EN 10222-2
ASTM A105 Flange Supplier in India at Best Price
Send your EN, JIS, BS or IS reference - we cross-match the nearest A105 equivalent before dispatch.
Your ASTM A105 Flange Partner In Middle East & GCC
Ex-stock inventory and custom-order dispatch to buyers across the Gulf region.
Dubai, UAEJebel Ali, UAE
Dammam, KSA
Izmir, TurkeyASME SA 105 Blind Flanges Face & Finish Guide
The face machining you specify decides which gasket and bolt-torque plan your site crew needs.
ASTM A105 Flange Exporter In India To Jebel Ali, UAE
Container-ready packing and export paperwork clear our stockyard within days of order confirmation.
ASTM A105 Class 150 Flange & Higher Class Pressure Chart
Rated working pressure per ASME B16.5, Group 1.1 carbon steel, at 38°C. Tap a class to view details.
150Class 150 Rating
300Class 300 Rating
600Class 600 Rating
900Class 900 Rating
1500Class 1500 Rating
2500Class 2500 Rating
Working from a European drawing instead? See our PN to ASME Class Conversion Chart to match your PN rating to the nearest ASME class.
ASTM A105 Flanges Shipped Across Europe
EN-cross-referenced documentation for buyers importing into the EU and UK.
London, UKHamburg, Germany
Rotterdam, Netherlands
Genoa, ItalyASTM A105 150 Flange Dimensions OD, Bore & Bolt Circle
Outside diameter, bolt circle and bolt-hole count rise together as NPS and class increase.
Size Range At A Glance
Popular Ex-Stock Sizes
Send your NPS, class and face type for exact dimensions the same day
ASTM A105 Class 150 Flange Dimension Chart (Inches, Per ASME B16.5)
Outside diameter, bolt circle diameter (BCD), bolt count and bolt-hole size for the most requested Class 150 sizes. For Class 300 and above, or for weld-neck bore/hub dimensions, use the full chart or send us your NPS and class.
| NPS (in) | Outside Dia. (in) | Bolt Circle Dia. (in) | No. of Bolts | Bolt Dia. (in) |
|---|---|---|---|---|
| ½″ | 3.50 | 2.38 | 4 | ½″ |
| ¾″ | 3.88 | 2.75 | 4 | ½″ |
| 1″ | 4.25 | 3.12 | 4 | ½″ |
| 1¼″ | 4.62 | 3.50 | 4 | ½″ |
| 1½″ | 5.00 | 3.88 | 4 | ½″ |
| 2″ | 6.00 | 4.75 | 4 | ⅝″ |
| 2½″ | 7.00 | 5.50 | 4 | ⅝″ |
| 3″ | 7.50 | 6.00 | 4 | ⅝″ |
| 4″ | 9.00 | 7.50 | 8 | ⅝″ |
| 6″ | 11.00 | 9.50 | 8 | ¾″ |
| 8″ | 13.50 | 11.75 | 8 | ¾″ |
| 10″ | 16.00 | 14.25 | 12 | ⅞″ |
| 12″ | 19.00 | 17.00 | 12 | ⅞″ |
| 16″ | 23.50 | 21.25 | 16 | 1″ |
| 20″ | 27.50 | 25.00 | 20 | 1⅛″ |
| 24″ | 32.00 | 29.50 | 20 | 1¼″ |
Reference values per ASME B16.5 for RF flanges. Always confirm against the current edition of the standard or your approved GAD before fabrication. View the full dimension chart for every class and NPS, including bore and hub thickness.
ASTM A105 Flange Manufacturer In Mumbai With NACE MR0175 Compliance
Sour-service tested forgings and full documentation for South African oil and gas buyers.
A105 Steel Flanges Heat Treatment & Sour Service Options
Heat treatment sets grain structure and toughness; compliance flags matter most for Gulf, African and offshore buyers.
Not sure whether to specify plain A105 or the normalized A105N grade? See ASTM A105 vs A105N: What's the Difference? for a side-by-side comparison.
ASTM A105 Flanges, Ex-Stock Across Southeast Asia
Container-ready shipments for buyers across Southeast Asia's refining and marine hubs.
Singapore
Bangkok, Thailand
Port Klang, Malaysia
Ho Chi Minh City, VietnamSA105 Forged Flanges Carbon Steel Flange Industry Use
A105 forgings connect the majority of ambient-to-moderate-temperature carbon steel piping worldwide.
From Calgary To Houston ASTM A105 Flanges On Demand
Trusted ASTM A105 flange exporter shipping worldwide with full mill certification
Calgary, CanadaHouston, USA
Veracruz, Mexico
Maracaibo, VenezuelaASTM A105 Slip On Flange Shipping Timeline
Every confirmed A105 flange order leaves our Mumbai stockyard on the fastest suitable freight lane - pick the option below
Ex-Stock Dispatch
Popular NPS and class combinations ship in 2–5 working days
Sea Freight
Economical for bulk container orders, 3–6 weeks port-to-port
Air Freight
Time-critical shutdown orders land in 5–9 days
Country-Specific ETA
Share your destination port for a firm delivery date
Share your NPS, class and face type for an instant ex-Mumbai quotation on ASTM A105 flanges.
ASTM A105 Forged Flange Inspection & Documentation Checklist
Each of these checks is available on request and recorded on your mill test certificate.
ASTM A105 Flange Buyer FAQs
Quick answers to the questions buyers ask us most before placing an order.
Which standard governs ASTM A105 flange dimensions?
- ASME B16.5 for NPS ½″ to 24″
- ASME B16.47 Series A & B for NPS 26–60″
- MSS SP-44 for large-diameter drilling
- Class 150 to 2500 covered
- Share NPS, class and face for exact figures
What is A105 flange material made of?
- Killed carbon steel forging
- Carbon 0.35% max, manganese 0.60–1.05%
- Silicon 0.10–0.35%, balance iron
- Supplied annealed or normalized
- Chemistry recorded on EN 10204 3.1 MTC
What is the ASTM A105 flange pressure rating by class?
- Class 150: 285 psi at 38°C
- Class 300: 740 psi at 38°C
- Class 600: 1,480 psi at 38°C
- Class 2500: 6,170 psi at 38°C
- Per ASME B16.5 Group 1.1; derates with temperature
Where is an ASTM A105 Slip On Flange normally used?
- Low to moderate pressure carbon steel lines
- Slides over pipe, welded inside and outside
- Faster alignment, lower fabrication cost
- Not preferred for cyclic or thermal service
- Dimensions per ASME B16.5
What does a SA105 Blind Flange do?
- Solid disc, no bore machining
- Seals pipe ends, nozzles and test points
- Available RF, FF and RTJ facing
- Class 150 to 2500 ex-stock
- Heaviest form at the same NPS and class
Why specify ASME SA105 Weld Neck Flanges?
- Tapered hub handles cyclic and thermal loads
- Butt-welded, full penetration joint
- Preferred from Class 600 upward
- Bore matched to pipe schedule
- State pipe schedule so bore matches
What size limit applies to A105 Socket Weld Flanges?
- Normally supplied NPS ½″ to 4″
- Bore-fit socket with single fillet weld
- Suited to small-bore high-pressure lines
- Smooth bore, no internal weld projection
- Larger sizes – confirm with governing code
What is the difference with an A105N flange?
- A105N is the normalized heat-treated condition
- Refined grain, better low-temperature toughness
- Same ASTM A105 chemistry and mechanical limits
- Tensile 70,000 psi min, yield 36,000 psi min
- Charpy V-notch testing on request
Ready To Order ASTM A105 Flanges?
Get container-ready pricing for the Gulf, Africa, Europe or Americas within days.
Authorized Supplier For The Following Companies - Material At Reseller Price For Traders
