4140
4140
General
AISI 4130 IS A CHROMIUM MOLYBDENUM ALLOY STEEL SPECIFICATION. WITH A LOWER CARBON CONTENT RANGE AISI 4130 PROVIDES BETTER WEDABILITY, T THE EXPENCE OF THROUGH THICKNESS STRENGHT, THAN THAT OF OTHER OIL AND GAS STEEL GRADES SUCH AS AISI 4140 OR AISI 4145. AISI 4130 ALLOY STEEL IS READILY MACHINEABLE IN THE SUPPY CONDITION OF 18-22 HRc.
Uses
VALVE BODIES, PUMPS & FITTINGS.
Heat Treatment & Condition
HARDENED, QUENCHED AND TEMPERED
Chemical Analysis
C
·
0.28/0.33
Mn
·
0.40/0.60
Mo
·
0.15/0.25
S
·
0.040 MAX
Si
·
0.15/0.35
Cr
·
0.90/1.10
Ni
·
0.25 MAX
P
·
0.035 MAX
| C | Mn | Mo | S | Si | Cr | Ni | P |
|---|---|---|---|---|---|---|---|
| 0.28/0.33 | 0.40/0.60 | 0.15/0.25 | 0.040 MAX | 0.15/0.35 | 0.90/1.10 | 0.25 MAX | 0.035 MAX |
Typical Mechanical Properties (EXAMPLE ONLY)
TEN. STRENTH
655 MAX MPa
PROOF STRESS
517 MPa
ELONG.
20%
HARDNESS
212/233 HB
| TEN. STRENTH | PROOF STRESS | ELONG. | HARDNESS |
|---|---|---|---|
| 655 MAX MPa | 517 MPa | 20% | 212/233 HB |