Why Oil & Gas Buyers Choose Ganpat Industrial For Carbon Steel A350 LF2 Round Bar?
Charpy-Tested Every Heat
Notch toughness proven down to −46°C, not just claimed on paper
Black, Bright & Forged
Round • Hex • Square • Flat – one PO, full range
Class 1 & Class 2 Stock
Both impact-test classes held ready against Mill Test Certificates
Dual-Certified On Request
Chemistry & tensile compliant to both A105 and A350 LF2 Cl.1
Quote In 24 Hours
Standard diameters ship same week from Mumbai stock
Carbon Steel A350 LF2 Round Bar Spotlight
- 1Form: Round, Hex, Square, Flat, Triangular, Threaded, Forged Bar
- 2Size Range: 6 mm to 300 mm dia • custom on drawing
- 3Grade: UNS K03011 • ASTM A350 LF2 • Werkstoff Nr. 1.0508
- 4Classes: Class 1 (average Charpy) & Class 2 (individual Charpy)
- 5Service: Low-temperature piping down to −46°C (−50°F)
- 6Finish: Black, Bright, Cold Drawn, Polished, Forged
Or call our Mumbai office: +91 22 6743 7134 • Fast dispatch on ready stock sizes
Ganpat Industrial stocks ASTM A350 LF2 Bars for demanding cold-service applications. These bars offer 250 MPa minimum yield strength with Charpy testing at -46°C. Available in round, hex, square, and flat sections, they ensure flexibility. Each bar includes UNS K03011 heat traceability and Mill Test Certificate 3.1. They suit refining, LNG and critical low-temperature applications.
Mumbai · Carbon Steel A350 LF2 Round Bar Manufacturer in India
Carbon Steel A350 LF2 Round Bar Engineered For High Performance
Ganpat Industrial supplies ASTM A350 Carbon Steel Round Bars for low-temperature applications. These bars offer excellent toughness and strength for critical pressure components. Ideal for LNG, refining, petrochemical, and offshore applications.
- ✓EN 10204 3.1 Certified
- ✓Heat Number Traceability
- ✓Third-Party Inspection
- ✓Global Export Experience
Heat Resistant A350 LF2 CS Black Bar Supplier in India With MTC
Carbon Steel A350 LF2 Round Bar Specification
Get Carbon Steel A350 LF2 Round Bar Supplier in India offering complete specifications.
ASTM A350 Carbon Steel Round Bars Material
- UNS K03011
- ASTM A350 Grade LF2
- ASME SA350 Gr LF2
- Werkstoff Nr. 1.0508
Carbon Steel A350 Hexagonal Bar Size Range
- Dia: 6 – 300 mm
- Length: 3 – 6 m random
- Fixed length on request
- Custom sizes on drawing
A350 LF2 Carbon Steel Polished Bar Classes
- Class 1 – average CVN of 3
- Class 2 – individual CVN values
- Both to same chemistry
- Class per project spec
ASTM A350 Carbon Steel Threaded Bar Condition
- Normalized
- Normalized & Tempered
- Quenched & Tempered
- Per thickness & class
Carbon Steel A350 LF2 Bright Bar Testing
- Charpy V-Notch Impact
- Tension & Hardness Test
- PMI Testing
- Third-Party Inspection
A350 LF2 Carbon Steel Forged Bars Documentation
- Mill Test Certificate 3.1
- NABL Lab Report
- Packing List
- Certificate Of Origin
Looking for A350 LF2 Carbon Steel Bars?Share your requirements for quick pricing and availability.
Buy Hot Rolled Carbon Steel A350 LF2 Bright Bar in Custom Sizes With High Degree Temperature At Best Price
Size Chart of ASTM A350 Bars
| Diameter Range (mm) | Approx. Inch Range | Tolerance Class | Standard Length |
|---|---|---|---|
| 6 – 20 | 1/4″ – 3/4″ | h9 (cold drawn) / h11 (hot rolled) | 3 – 6 m |
| 20 – 50 | 3/4″ – 2″ | h9 (cold drawn) / h11 (hot rolled) | 3 – 6 m |
| 50 – 100 | 2″ – 4″ | h11 (hot rolled / forged) | 3 – 6 m |
| 100 – 200 | 4″ – 8″ | h11 (hot rolled / forged) | Random / cut length |
| 200 – 300 | 8″ – 12″ | Forged, as-rolled | Random / cut length |
Production Process of Hot Rolled Carbon Steel A350 LF2 Round Bar
Billet & Heat Check
Incoming UNS K03011 billet verified against heat analysis
Reheat & Hot Rolling
Rolled or forged at 1230–1260°C into round, hex or square
Normalize
Heat-treated to Class 1 or Class 2 toughness requirement
Straightening & Turning
Straightened, peeled or centreless ground to size
Charpy & Tension Test
Impact energy checked at −46°C per heat and class
Marking & Packing
Heat-number stencilled, then export-ready bundling
Machining Services of A350 LF2 Carbon Steel Forged Bars
Precision machining services are available to meet dimensional requirements.
CNC Turning
Boring & Facing
Threading & Tapping
Slotting & Milling
Drilling To Drawing
Centreless Grinding
Sawing & Cut-To-Length
Custom Forging To Drawing
Weekly Delivery of ASTM A350 Carbon Steel Hex Bar to the Following Countries
| Export to | Countries | Continent | Shipping time | Ports |
|---|---|---|---|---|
|
USA | North America | 30-45 Days | Port of Los Angeles |
|
UAE | Asia | 11-50 Days | Port of Singapore |
|
Italy | Europe | 20-54 Days | Port of Antwerp-Bruges |
Need Certified A350 Carbon Steel Triangular Bar?Send size and quantity for a prompt quotation.
Different Types of Carbon Steel A350 LF2 Bar
A350 LF2 Carbon Steel Forged Bars
Open-Die Forged
Carbon Steel A350 LF2 Cold Drawn Round Bar
Cold Drawn
A350 LF2 Carbon Steel Polished Bar
Ground & Polished
Carbon Steel A350 Hexagonal Bar
AF 6 – 65 mm
Carbon Steel A350 LF2 Square Bar
Custom Drawing
A350 Carbon Steel Triangular Bar
Custom Drawing
Carbon Steel A350 LF2 Flat Bar
Custom Drawing
Carbon Steel A350 LF2 Rods
Cut Length
Carbon Steel A350 LF2 Cold Drawn Round Bar Surface Finish
Different surface finishes are available to meet specific application requirements.
Hot Rolled Finish
Bright Finish
Polished Finish
Machined Finish
Cold Drawn Finish
Ground Finish
Peeled Finish
Rough Turned Finish
A105 vs A350 LF2 Round Bar Comparison
ASTM A105 Round Bar
- Carbon steel forging-grade material for pressure applications
- Minimum yield strength of 250 MPa (36 ksi)
- Minimum tensile strength of 485 MPa (70 ksi)
- Maximum hardness of 187 HB
- Impact (Charpy) testing is not mandatory unless specified
- Typically used for ambient and elevated-temperature piping
ASTM A350 LF2 Round Bar
- Low-temperature carbon steel forging-grade material
- Minimum yield strength of 250 MPa (36 ksi)
- Tensile strength of 485-655 MPa (70-95 ksi)
- Maximum hardness of 197 HB
- Mandatory Charpy impact testing at -46°C
- Designed for low-temperature and cryogenic-adjacent service
Chemical Composition of ASTM A350 Carbon Steel Hex Bar
ManganeseMn
0.60–1.35%
SiliconSi
0.15–0.30%
CarbonC
≤ 0.30%
SulphurS
≤ 0.040%
PhosphorusP
≤ 0.035%
IronFe
Balance
Mechanical Properties of Carbon Steel A350 LF2 Square Bar
Tensile Strength
485–655 MPa
70–95 ksi
Yield Strength
250 MPa Min
36 ksi Min
Hardness
≤ 197 HB
Brinell Max
Elongation
22% Min
In 50 mm Gauge
A350 LF2 Carbon Steel Black Bar Material Equivalent
American Standard
- UNS K03011
- ASTM A350 Grade LF2
- ASME SA350 Gr LF2
European Standard
- Werkstoff Nr. 1.0508
- DIN cross-reference
- EN low-temp forging class
Related Piping Grades
- ASTM A333 Grade 6 (pipe)
- ASTM A420 WPL6 (fittings)
- Often dual-cert with A105
Buying In Bulk For A Refinery Turnaround?Send your BOQ – Get factory price, MTC 3.1, dispatch same week.
Carbon Steel A350 LF2 Rods Welding Considerations
Carbon Equivalent
- CE capped at 0.45–0.48%
- Good weldability by design
- Low hydrogen electrodes advised
Preheat & Interpass
- Preheat recommended above 25 mm
- Controlled interpass temperature
- As per project WPS
Post-Weld Heat Treatment
- PWHT per ASME B31.3 thickness rule
- Retains impact toughness
- Weld metal to match LF2 chemistry
Weight Chart of Carbon Steel A350 LF2 Round Bars
| Diameter (mm) | Weight (kg/m) |
|---|---|
| 10 | 0.62 |
| 16 | 1.58 |
| 20 | 2.47 |
| 25 | 3.85 |
| 32 | 6.31 |
| 40 | 9.87 |
| 50 | 15.41 |
| 63 | 24.47 |
| 75 | 34.68 |
Marking of ASTM A350 Carbon Steel Bars
Grade & Class
Stencilled as A350 LF2 CL1 or CL2
Field 1
Heat Number
Traceable to heat & product analysis records
Field 2
Manufacturer’s Symbol
Ganpat Industrial identification mark
Field 3
Size & Length
Diameter, section type and cut length
Field 4
Need Class 1 or Class 2 Bar With Full MTC Traceability?Send diameter, length & class – we quote same day.
Applications of Carbon Steel A350 LF2 Flat Bar
Suitable for valves, flanges, pressure vessels, piping, and low-temperature service applications.
Oil & Gas Low-Temperature Piping
LNG Terminals & Storage
Offshore Platforms
Valve & Flange Forging Stock
Refinery Piping Systems
Petrochemical Plants
Power Plant Piping
Pump & Compressor Skids
Monthly Delivery of ASTM A350 Bars to the Following Countries
| Export to | Countries | Continent | Shipping time | Ports |
|---|---|---|---|---|
|
Malaysia | Asia | 19-23 Days | Port of Shanghai |
|
Spain | Europe | 33-34 Days | Port of Hamburg |
|
Germany | Europe | 20-45 Days | Port of Rotterdam |
Testing Methods of ASTM A350 Carbon Steel Threaded Bar
Check Carbon Steel A350 LF2 Round Bar Supplier in India offering certified testing methods.
Charpy V-Notch Impact
Toughness verified at −46°C per Class 1 or Class 2
Tension & Hardness
Yield, tensile, elongation and Brinell hardness per heat
PMI & Ultrasonic
Positive material ID plus internal soundness check
Frequently Asked Questions
What is the difference between A105 and ASTM A350 Bars?
A350 LF2 includes mandatory Charpy impact testing at −46°C for low-temperature service.
What is the A350 LF2 Carbon Steel Polished Bar equivalent for low-temperature service?
It is commonly used for low-temperature applications.
Is Carbon Steel A350 Hexagonal Bar suitable for welding?
Yes, it offers good weldability with suitable welding procedures.
What is the A350 Carbon Steel Triangular Bar price compared to A350 LF2?
A350 LF2 may cost more due to mandatory impact testing requirements.
Sales Representative Available to Provide Quick Quote
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|---|---|---|---|---|
| USA | Angola | Algeria | Kenya | Tanzania |
| Ethiopia | Gabon | Zambia | Ghana | Morocco |
| New South Wales | Tunisia | Mozambique | Egypt | – |
6 Reasons to choose Ganpat Industrial Corporation
- Distributor of Heat Exchanger parts and Alloys for High Temperature applications.
- Stockholder and importer of Ferrous and non ferrous metals.
- Wide stock of prime quality austenitic and Ferritic Stainless Steel for Extreme pressure environment.
- Marine grade steel at lowest price in Mumbai.
- Compare Price per KG in India and China.
- Offer Resale price to local suppliers, traders and wholesalers in UAE, Saudi Arabia, Egypt, and USA