AISI 4130 Flanges

Available Sizes :

• PN 2.5 – PN 400
• NPS: ½” to 48″
• DN15 – DN1500

Melting Point :

• 1432°C (2610°F)

Advantages :

• Good Weldability
• High Strength To Weight Ratio

Schedule :

• SCH 120/ 140
• SCH 160/ 180
• SCH 10/ 20/ 40
• SCH 60/ 80/ 100

Pressure :

• Class 150
• Class 300
• Class 600
• Class 900
• Class 1500
• Class 2500

American Standard :

• ASME B16.47
• ASME B16.48
• ASME B16.5
• ASME B16.36

Forging Temperature :

• 871°C (1600°F)

Supporting Material :

• Ring Joint
• Nuts
• Gaskets
• Bolts

Number Of Bolts Hole :

• 4 To 48

Machining :

• Choose material
• Forging
• Forming
• Drilling holes
• Inspection test
• Chamfering edges
• Cutting
• Sealing faces
• Heat treatment
• Machining
• Packaging

Types Of Threads :

• NPT
• MPT/ BSPT (Female)
• FPT
• BSP
• BSPP (Male & female)
• MNPT (Male)

Testing Certificates :

• Third Party Inspection
• 100% Radiography Test
• MTC BS EN 10204 3.1/ 3.2
• NACE MR0175

Face Types :

• FF face (flat)
• T&G face (Tongue & groove)
• RF face (Raised)
• LJ face (Lap joint)
• RTJ face (Ring type joint)
• M&F face (Male & female)

Surface Finish :

• Spiral serrated
• Serrated finish
• Smooth finish
• Concentric serrated
• Mirror finish
• Stock finish
• Cold water finish

Applications :

• Petrochemicals industry
• Petrochemical plants
• Power generation plant
• Oil & gas plants
• Nuclear energy sector
• Sea water exchanger

Available Packaging :

• Carton box
• Custom as required
• Plastic bag
• Wooden case

Logistics :

• By Train
• By Air
• By Sea
• Saudi Arabia = 7 to 8 day
• Qatar = 7 day
• Oman = 5 to 6 days
• UAE = 6 to 7 day
• Bahrain = 9 to 10 days

Connection :

• TH (Threaded)
• Welding (Welded)

Marking :

• Pressure Class
• ASME/ ASTM Standard
• Material
• Sizes
• Facing Type
• Grade
• Manufacturer logo
• Material Origin

Material :

• Alloy Steel

UNS Number :

• G41300

Manufacturing :

• Plate
• Forged
• Cast

Testing Checklist :

• Hardness test
• PMI test
• Visual inspection
• Impact test
• Material inspection
• Tensile test

DIN Number :

• DIN 1.7214

STANDARD

• AISI 4130 Flange

EN

• 25CrMo4

JIS

• JIS G4105

BS

• BS 970

UNS

• G41300

WERKSTOFF NR.

• 1.7218

Manganese [Mn] :

• 0.40-0.60%

Silicon [Si] :

• 0.15-0.35%

Phosphorus [P] :

• max 0.035%

Sulfur [S] :

• MAX 0.025%

Carbon [C] :

• 0.28-0.33%

Copper (Cu) :

• –

Chromium (Cr) :

• 0.80-1.10%

Nickel (Ni) :

• max 0.50%

Density

• 0.28%

Melting Point

• 2580℃

Tensile Strength

• 560 MPa

Yield Strength (0.2%Offset)

• 460 MPa

Elongation

• 20%