AISI 4130 Low Alloy Steel
Pipe, Fittings, Flanges, Plate, Bar, Tube
Applied Alloys International is Australia’s premier source of AISI 4130 material.
AISI 4130 / UNS G41300 grade is a low alloy steel containing chromium and molybdenum as strengthening agents. The steel has good strength and toughness, weldability, and machinability. AISI 4130 finds many applications in oil & gas, offshore, mining, and aerospace industries. 1.7218 – 25CrMo4 – 25CD4(S) – JIS G4150 Gr SCM430
Seamless Pipe
ASTM 519 Gr 4130
- 2″ – 12″ nominal bore
- up to 50mm wall thickness
- quenched and tempered
- dual certified for offshore drilling
- API 5L, NACE MR 01 75, ASME B16.10, ASTM, AISI, AMS
Flanges & Fittings
AISI 4130
- 5k, 10k, 15k, 20k
- Flanges, Studded Tees, Crosses, Hub & Clampsets, Compact Blocks
- DNV & ABS Type Approval
- API 6A, API 16A, API 16C
Long Sweep Manifold Fittings
AISI 4130 Forged Fittings
- 2″ XXS – 6″ XXS
- 5.5″ OD x 3.0″ ID, 6.75″ OD x 5.0″ ID
- Long Sweep Bends, Elbows, Tees, Crosses, Full Flow Tees, Goosenecks
- API & ANSI Standards
3D Bends & Elbows
AISI 4130
- 2″ XXS – 6″ XXS
- 5.5″ OD x 3.0″ ID, 6.75″ OD x 5.0″ ID
- 45 Degree 3D Double Backed Bends, 90 Degree 3D Doubled Backed Bends
- DNV & ABS Type Approval
Plate
ASTM 829 Gr 4130
- Hot or Cold Rolled Aircraft Steel Sheet
- Thickness: 0.025” – 6 ⅛ ”
- Length, Width: 3ft x 6ft
- AISI 4130 / E4130 / AMS-6345 / 6350 / 6351
Bar
AISI 4130, 4130H.T
- Round Bar: ⅛” OD – 30″ OD
- Hex Bar Sizes: 3/16″ – 2 ½”
- Square Bar: ¼” – 6″
- Flats: 3/16″ x 1″ – 4″ x 6″
- G41300, MIL-S-6758, AMS-6346, AMS-6370, AMS-2301, AMS-6348, AMS-2304, ASTM A331, A332
Round, Square, Rectangular Tube
ASTM A519, A513 Gr 4130
- ¼” – 3 ½”
- 6.4mm – 88.9mm
- MIL-T-6736, AMS-6360, AMS-6371, AMS-6372 DOM, Cold Drawn Seamless
Mechanical Tube
ASTM A519 Gr 4130
- ½ ” – 27″
- .125″ Wall through 5.000″ Wall Thickness
- Cold Drawn, Hot Finished, Seamless, Annealed, Normalized
Valves
API 6A
- 2″ – 6″ or 50mm – 150mm
- 2,000 – 15,000 PSI
- Through Conduit Valves, Gate Valves, and Plug Valves
- Buttweld or Flanged Ends
4130 Chemical Composition
| Weight % | C | Si | Mn | Cr | Mo | S | P |
|---|---|---|---|---|---|---|---|
| Min. | 0.28 | 0.15 | 0.40 | 0.80 | 0.15 | ||
| Max. | 0.33 | 0.35 | 0.60 | 1.10 | 0.25 | 0.040 | 0.035 |
4130 Mechanical Properties
| Yield strength Rp0.2, MPa | Tensile strength Rm, MPa | Elongation [%] | Hardness [HRC] | Impact, Charpy-V, -32℃ [J] |
|
|---|---|---|---|---|---|
| 60 ksi | ≥ 414 | ≥586 | ≥18 | 22 MAX | ≥42 |
| 75 ksi | ≥517 | ≥655 | ≥17 | 22 MAX | ≥42 |