Grade
|
C
|
Mn
|
Si
|
P
|
S
|
Cr
|
Ni
|
Mo
|
Cu
|
V
|
Grade C(25CrMnVA)(AISI 1526)
|
0.21-0.30
|
1.30-1.70
|
0.17-0.37
|
0.025 max
|
0.025 max
|
0.30 max
|
0.35 max
|
0.06 max
|
0.20 max
|
0.07 max
|
Grade K (20Ni2MoA)(AISI 4621)
|
0.18-0.23
|
0.70-0.90
|
0.17-0.37
|
0.025 max
|
0.025 max
|
0.35 max
|
1.65-2.00
|
0.20-0.30
|
0.20 max
|
0.07 max
|
Grade D (20CrMoA)(AISI 4119)
|
0.17-0.24
|
0.40-0.70
|
0.17-0.37
|
0.025 max
|
0.025 max
|
0.80-1.20
|
0.30 max
|
0.15-0.25
|
0.20 max
|
0.07 max
|
Grade KD (25NiMnCrMoA)(AISI 3130)
|
0.22-0.29
|
0.70-1.00
|
0.15-0.35
|
0.025 max
|
0.025 max
|
0.42-0.65
|
0.72-1.00
|
0.01-0.06
|
0.20 max
|
0.07 max
|
Grade HL (30CrMoA)(AISI 4130)
|
0.26-0.33
|
0.40-0.70
|
0.17-0.37
|
0.025 max
|
0.025 max
|
0.80-1.10
|
0.30 max
|
0.15-0.25
|
0.20 max
|
0.07 max
|
Grade HY (30CrMoA)(AISI 4130)
|
0.26-0.33
|
0.40-0.70
|
0.17-0.37
|
0.025 max
|
0.025 max
|
0.80-1.10
|
0.30 max
|
0.15-0.25
|
0.20 max
|
0.07 max
|
Grade KH (30CrNi2MoA)(AISI 4330)
|
0.28-0.35
|
0.70-0.90
|
0.17-0.37
|
0.025 max
|
0.025 max
|
0.80-1.10
|
1.65-2.00
|
0.20-0.30
|
0.20 max
|
0.07 max
|
Grade
|
Tensile Strength Rm (Mpa)
|
Yield Strength Rp0.2 (Mpa)
|
Elongation
A (%) |
Area Reduction
Z (%) |
Hardness (HRC)
|
C
|
621-793
|
414 min
|
12 min
|
55 min
|
16-23
|
K
|
621-793
|
414 min
|
12 min
|
55 min
|
16-23
|
D
|
793-965
|
586 min
|
10 min
|
50 min
|
23-32
|
KD
|
793-965
|
586 min
|
10 min
|
50 min
|
23-32
|
HL
|
965-1195
|
795 min
|
10 min
|
50 min
|
32-36
|
HY
|
965-1195
|
795 min
|
/
|
/
|
42 min
|
KH
|
965-1195
|
620 min
|
10 min
|
50 min
|
32-36
|
Tag: Full Coupling | Slim Hole Coupling | Full Adapter Coupling | Slim Hole Adapter Coupling | Full Polished Rod Coupling
Tag: API Grade Sucker Rod | Adapter Coupling | Steel Sucker Rod | Twist-on Sucker Rod Guide | API Twist-on Rod Guide