ASTM A516 Grade 70 Flange Key Facts
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
15+ countries • GCC, Africa & APAC
Testing Offered
Tensile, hardness & PMI • MTC EN 10204 3.1
Shipment Documents
Invoice, Packing List • COO, COI, MTC, BL & Lab Report
Table of Content
High-Performance SA 516 Gr 70 Slip On Flange Manufacturer in India With Size 1/2" to 60"
Mortec Manufacturing Co works as an ASTM A516 Grade 70 Flange Manufacturer in India. We manufacture flanges using approved pressure vessel material for demanding applications. We source killed fine-grain SA-516 Grade 70 pressure vessel material. Thickness ranges from 6 mm through 205 mm, as required. Each material lot carries a nominated and traceable heat number. We profile and machine every flange blank at our Mumbai manufacturing shop. Since A516 specifies pressure vessel material, it excludes forged products. Therefore, every blank retains its original heat identity throughout processing. This identity continues through cutting, normalizing, and final turning operations. Consequently, mill certificates, markings, and shipping documents remain fully consistent.
Machining follows ASME B16.5 for NPS ½" through 24" flanges. For larger sizes, ASME B16.47 Series A and B applies. We manufacture NPS 26" through 60" flanges as required. ASME B16.48 covers line blanks and related machining requirements. RF, FF, and RTJ facings are available for specified applications. Drilling patterns follow approved piping isometrics and project requirements. As an SA 516 Gr 70 Slip On Flange Supplier, we advise buyers. We clarify material requirements under applicable codes to prevent inspection issues. Sour-service applications use HIC-tested material meeting NACE TM0284 requirements. Hardness remains within NACE MR0175 / ISO 15156 specified limits. Every shipment includes EN 10204 3.1 or 3.2 documentation.
ASTM A516 Grade 70 Flange Specification
ASTM A516 Grade 70 Flange Manufacturer in India providing complete details, testing and compliance for purchase orders.
SA516 Threaded Flanges Manufacturing Standards
- ASME B16.5, B16.47 Series A & B
- ASME B16.48 line blanks, MSS SP-44
ASTM A516 Grade 70 Plate Flange Sour-Service Compliance
- NACE MR0175 / ISO 15156 hardness cap
- NACE MR0103 for refinery wet H₂S duty
ASME SA 516 Gr 70 Slip On Flange Non-Destructive Examination
- Ultrasonic to ASTM A435, A577 or A578
- Magnetic particle per A20 requirement S9
ASTM A516 Grade 70 Ring Type Joint Flange Toughness
- Charpy V-notch under A20 requirement S5
- Drop weight test S6 for 16 mm and over
SA 516 Gr 70 Lap Joint Flanges Packaging
- Wooden pallets or seaworthy export packing
- Face protection with rust preventive coating
ASTM A516 Grade 70 Exhaust Flange Heat Treatment
- Normalizing performed as specified for A516 Grade 70
- Heat treatment records available with inspection documentation
SA 516 Gr 70 Blind Flanges Buyer-Geography Documentation
- PED 2014/68/EU paperwork for EU buyers
- IBR certified plate on Indian boiler work
ASTM A516 Gr 70 Socket Weld Flanges Surface Protection Choices
- Shop primer or blast to Sa 2½
- Epoxy coating and face rust preventive
SA 516 Gr 70 Spectacle Blind Flange Material Traceability
- Plate heat number retained through machining
- EN 10204 3.1 or 3.2 inspection documents
Size Chart of ASTM A516 Grade 70 Ring Type Joint Flange
ASTM A516 Grade 70 Flange size chart with standard dimensions as per ASME B16.5.
| NPS | DN | OD | Bolt Circle | Bolt Holes | Bolt Size | Min Thickness |
|---|---|---|---|---|---|---|
| 2″ | DN50 | 152.4 | 120.7 | 4 | ⅝″ | 15.9 |
| 4″ | DN100 | 228.6 | 190.5 | 8 | ⅝″ | 23.9 |
| 6″ | DN150 | 279.4 | 241.3 | 8 | ¾″ | 25.4 |
| 8″ | DN200 | 342.9 | 298.5 | 8 | ¾″ | 28.6 |
| 12″ | DN300 | 482.6 | 431.8 | 12 | ⅞″ | 31.8 |
Distinct Types of A516 Gr 70 Flange
ASTM A516 Grade 70 Flange Supplier in India, supplying various flange types with stock availability.
SA 516 Gr 70 Blind Flanges
ASME B16.5 • Plate Permitted- The one hubless type code-approved in plate
- Closes vessel nozzles and line ends
ASME SA 516 Gr 70 Slip On Flange
Hubbed • Forged Grade Advised- Supplied where the specification names plate
- Otherwise offered in A105 to the same drawing
A516 Gr 70 Spade Flanges
ASME B16.48 • Plate Permitted- Paired paddle blank and ring spacer
- Preferred over figure-8 in large bores
ASTM A516 Grade 70 Plate Flange
Reducing, No Hub • Plate Permitted- Reducing flange machined without a hub
- Joins two line sizes at one bolted joint
SA 516 Gr 70 Lap Joint Flanges
With Stub End • Forged Grade Advised- Spins freely to line up bolt holes
- Backing ring never touches the process fluid
ASTM A516 Gr 70 Weld Neck Flanges
Tapered Hub • Forged Grade Advised- Full penetration butt weld to the pipe
- Dual A105 option keeps B16.5 marking valid
ASTM A516 Grade 70 Flange Manufacturer In Mumbai - Since 2012
Send the thickness and class you need and we will hold a cutting slot for it today.
SA 516 Gr 70 Forged Flange Chemical Composition
Mechanical Properties of SA 516 Gr 70 Spectacle Blind Flange
ASTM A516 Grade 70 Pressure Vessel Steel Flange Equivalent
ASTM / ASME (USA)
- ASTM A516/A516M Grade 70 [485]
- ASME SA-516 Gr 70 – identical text
- A516M Grade 485 in SI designation
- A515 Gr 70 – higher-temperature cousin
EN 10028 (Europe)
- P355GH, material number 1.0473
- EN 10028-2 pressure purposes plate
- Lower carbon, tighter sulfur limit
BS (United Kingdom)
- BS 1501-224-490A & 490B
- Withdrawn, replaced by EN 10028-2
- Still quoted on legacy UK drawings
GB (China)
- GB/T 713 Q345R
- Common on Chinese-built vessels
IS (India)
- IS 2002 Grade 3 – nearest match
- Used on IBR registered equipment
Same B16.5 Rating Group
- Group 1.1 with A105 and A350 LF2
- Also A216 WCB, A515 Gr 70, A537 Cl.1
- Identical pressure-temperature table
Top-Notch Engineering A516 Gr 70 Socket Weld And Blind Flange For Pressure Vessels
Pressure Rating of SA 516 Gr 70 Blind Flanges
A516 Grade 70 falls under ASME B16.5 Material Group 1.1 with ratings comparable to A105 and A216 WCB.
150#Class 150 – 19.6 bar
Roughly 285 psi at ambient. Broadest ex-stock coverage in blinds and line blanks.
300#Class 300 – 51.1 bar
About 740 psi at ambient. The default class on refinery and utility headers.
600#Class 600 – 102.1 bar
Near 1,480 psi at ambient. Common where RTJ facing is written into the spec.
900#Class 900 – 153.2 bar
Close to 2,220 psi at ambient. Heavier blanks for gas processing and injection duty.
1500#Class 1500 – 255.3 bar
Around 3,705 psi at ambient. Thick plate and long machining cycle, so plan the lead time.
2500#Class 2500 – 425.5 bar
About 6,170 psi at ambient. Defined only up to NPS 12″ in ASME B16.5.
HIC & NACE Sour Service of ASTM A516 Grade 70 Exhaust Flange
Wet H₂S service in Gulf, South African and Canadian sour applications requires HIC testing and hardness records.
SA 516 Gr 70 Spectacle Blind Flange Supplying Africa & The Gulf
Routine cargo sailings from Nhava Sheva to ports across Africa and the GCC.
Durban, South AfricaCape Town, SA
Mombasa, Kenya
Kampala, Uganda
Jebel Ali, UAE
Dammam, KSA
Mersin, TurkeyASTM A516 Grade 70 Flange Exporter To Jebel Ali, UAE
Crated against Gulf humidity with the paperwork pre-checked for UAE import clearance.
ASTM A516 Grade 70 Flange Vs ASTM A105 Flange
Both fall under ASME B16.5 Material Group 1.1, selection depends on form, strength and low-temperature requirements.
ASTM A516 Grade 70 Flange
- Product Form: Rolled pressure vessel plate
- Yield Strength: 260 MPa / 38 ksi min
- Tensile Strength: 485–620 MPa, capped at both ends
- Best For: Blinds, spades, spacers, reducing flanges
ASTM A105 Flange
- Product Form: Hot-forged carbon steel
- Yield Strength: 250 MPa / 36 ksi min
- Tensile Strength: 485 MPa / 70 ksi minimum, no cap
- Best For: Every hubbed type at ambient duty
Maximum Allowable Stress of A516 Gr 70 Spade Flanges
Maximum allowable stress depends on material grade and design temperature as specified by the applicable ASME standard.
| Temperature | MAS | Temperature | MAS |
|---|---|---|---|
| 150 | 20 | 700 | 18.1 |
| 600 | 19.4 | 1000 | 2.5 |
| -20~100 | 20 | 650 | 18.8 |
| 200 | 20 | 750 | 14.8 |
| 300 | 20 | 850 | 9.3 |
| 250 | 20 | 800 | 12 |
| 400 | 20 | 900 | 6.7 |
| 500 | 20 | 950 | 4 |
SA516 Threaded Flanges Face Types
Face and finish are matched to the gasket already chosen for the joint – tell us the gasket and we will machine to suit.
Key Benefits of ASTM A516 Gr 70 Weld Neck Flanges
Why project engineers keep specifying this grade for blanking and closure duty rather than moving up the price list.
SA 516 Gr 70 Lap Joint Flanges Manufacturing Process
Eight stages from plate receipt to sealed crate, all inside our own Mumbai units.
Applications of ASME SA 516 Gr 70 Slip On Flange
Sectors that order this grade repeatedly, and the duty it is doing in each.
A516 Gr 70 Spade Flanges Serving America & Southeast Asia
Regular supply routes serve North American distributors and Southeast Asian assembly plants.
Toronto, CanadaChicago, USA
Monterrey, Mexico
Venezuela
Singapore
Cebu, Philippines
Penang, Malaysia
Vietnam
Thailand
Indonesia
Genoa, Italy
Rotterdam, NetherlandsASTM A516 Grade 70 Plate Flange Supplier - NACE MR0175 Hardness Capped
Hardness readings printed on the certificate, so your inspector clears the lot first time.
SA 516 Gr 70 Forged Flange Dispatch Timeline
Shipping timelines are confirmed once the size, class and finish are finalized.
Ex-Stock Dispatch
Standard ASTM A516 Grade 70 Flanges dispatch from our Mumbai facility within 4–6 days, subject to stock.
Sea Freight
FCL or consolidated LCL shipments generally take 20–38 days port to port, depending on destination.
Air Freight
Priority air shipments can be arranged in around 4–7 days for urgent project requirements.
Country-Specific ETA
Share your delivery location and we will confirm the estimated transit and delivery timeline.
ASTM A516 Grade 70 Flange FAQs
The questions buyers put to us most often before releasing an order.
What are ASME SA 516 Gr 70 Slip On Flange dimensions?
Dimensions follow ASME B16.5 for NPS 1/2 to 24 inches and ASME B16.47 for larger sizes.
How is ASTM A516 Gr 70 Weld Neck Flanges price calculated?
Pricing depends on size, thickness, class, facing, quantity, testing and delivery requirements.
What is the SA 516 Gr 70 Forged Flange material specification?
SA-516 Grade 70 is a killed carbon steel plate with a minimum yield strength of 260 MPa.
Can SA 516 Gr 70 Blind Flanges be used for weld neck flanges under ASME B16.5?
A516 Grade 70 plate is generally used for blind and reducing flanges rather than hubbed weld neck flanges.
Do you supply HIC tested A516 Gr 70 Spade Flanges to South Africa and the UAE?
Yes, HIC-tested A516 Grade 70 flanges can be supplied with required certificates and export documentation.
Authorized Supplier For The Following Companies - Material At Reseller Price For Traders
