AISI 4140 Fittings

Size In Ready Stock :

• Seamless : 1/2″ – 24″
• Welded : 24 – 96″
• Buttweld : 1/2″ – 36″

Wall Thickness :

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

Advantages :

• Good Wear Resistance
• Good Ductility
• Superior Toughness

Ends :

• Butt Welding
• Plain Bevel
• Bevelled

Applicable Fluids :

• Steam
• Water
• Air
• Oil & Gas

Types Of Packaging :

• Carton Box
• Wooden Cases
• Wooden Pallet

GOST Standards:

• GOST 17379
• GOST 17375
• GOST 17375
• GOST 17376
• GOST 17378

ISO Standard :

• ISO 5251

Thickness Tolerance :

• +/-12.5%
• Custom

Temperature :

• -20℃ To 1200℃

Tensile Stress :

• 655 MPa

Inspection Plan :

• Impact test
• Hardness test
• Ultrasonic test
• HIC Tested
• PMI Test
• Hyrdrostatic Test

Heat Treatment :

• Tempering
• Stress relieving
• Normalizing
• Quenching

Life :

• 12 Years

Yield Strength :

• 415 MPa

End Connection :

• Buttweld

Used :

• Power generation plant
• Petrochemical plants
• Nuclear energy sector

International Standard :

• ASME B16.28
• ASME B16.25
• MSS-SP-83
• ASME B16.9

UNS :

• UNS G41400

Types Of Coating :

• PE coating
• Anti corrosion coating
• 3PE coating
• Customized coating

Method :

• Buttweld
• Seamless
• Welded

Most Popular Types :

• 4140 Alloy Pipe Bend
• SAE 4140 Stub End
• 4140 Chromoly Tee
• UNS G41400 End Cap
• AISI 4140 Elbow
• AISI 4140 60k Reducer

Bend Radius :

• 6D/ 8D/ 10D
• 12D/ 22D
• 3D/ 4D/ 5D

Bend Angle :

• 15°/ 22.5/ 30°
• 45°/ 60°/ 90°
• 135°/ 180°

Bending Process :

• Rotary draw bending
• Hot induction bending
• Ram type bending
• Mandrel bending
• Roll bending

Germany Standards :

• Eccentric (DIN 2616-1)
• Elbow (DIN 2605-1)
• Elbow (DIN 2605-2)
• Concentric (DIN 2616-2)
• Saddle (DIN 2618)
• Torispherical heads (DIN 28011)
• Caps (DIN 2617)
• Tee (DIN 2615-1/2)

European Standards :

• EN 10253-2

STANDARD

• AISI 4140 Fittings

UNS

• G41400

Werkstoff

• 1.7225

Casting Equivalent

• ASTM A915 SC 4140

Manganese [Mn] :

• 0.75-1.00%

Silicon [Si] :

• 0.15-0.35%

Phosphorus [P] :

• 0.035%

Sulfur [S] :

• 0.025%

Carbon [C] :

• 0.38-0.43%

Copper (Cu) :

• 0.80-1.10%

Chromium (Cr) :

• 0.80-1.10%

Nickel (Ni) :

• –

Melting Point

• 205 to 649°C

Yield Strength 0.2% (Proof)

• 415

Elongation (% in 50mm)

• 25.70% min.

Tensile Strength

• 655 MPa min.

Hardness

• 197 (Brinell)