Chemical Composition, max (unless range is given), % | Tensile Properties, min (unless range is given) | Energy Value, ft.lbf | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Specification | Grade or Class | C | Si | Mn | S | P | Cu | Ni | Cr | Mo | V | Cb/Nb | N | Hardness HB, max | Tensile Strength min, Ksi | Yield Point Ksi |
Yield Strength Ksi @ 0.2% |
Elongation in 2 in, % | Reduction of Area, % | CVN min avg of 3 specimens | CVN min for single specimen | Testing Temp., F | |
AISI | 1020 | 0.17-0.23 | 0.30-0.60 | 0.050 | 0.040 | ||||||||||||||||||
AISI | 1025 | 0.22-0.28 | 0.30-0.60 | 0.050 | 0.040 | ||||||||||||||||||
AISI | 1030 | 0.27-0.34 | 0.60-0.90 | 0.050 | 0.040 | ||||||||||||||||||
AISI | 1040 | 0.37-0.44 | 0.60-0.90 | 0.050 | 0.040 | ||||||||||||||||||
AISI | 1045 | 0.42-0.50 | 0.60-0.90 | 0.050 | 0.040 | ||||||||||||||||||
AISI | 4130 | 0.28-0.33 | 0.15-0.30 | 0.40-0.60 | 0.040 | 0.035 | 0.80-1.10 | 0.15-0.25 | |||||||||||||||
AISI | 4140 | 0.38-0.43 | 0.15-0.30 | 0.75-1.00 | 0.040 | 0.035 | 0.80-1.10 | 0.15-0.25 | |||||||||||||||
AISI | 4330 | 0.28-0.33 | 0.15-0.30 | 0.60-0.80 | 0.040 | 0.035 | 1.65-2.00 | 0.70-0.90 | 0.20-0.30 | ||||||||||||||
AISI | 4340 | 0.37-0.43 | 0.15-0.30 | 0.60-0.80 | 0.040 | 0.035 | 1.65-2.00 | 0.70-0.90 | 0.20-0.30 | ||||||||||||||
AISI | 8620 | 0.18-0.23 | 0.15-0.30 | 0.70-0.90 | 0.040 | 0.035 | 0.40-0.70 | 0.40-0.60 | 0.15-0.25 | ||||||||||||||
AISI | 8625 | 0.23-0.28 | 0.15-0.30 | 0.70-0.90 | 0.040 | 0.035 | 0.40-0.70 | 0.40-0.60 | 0.15-0.25 | ||||||||||||||
AISI | 8630 | 0.28-0.33 | 0.15-0.30 | 0.65-0.95 | 0.040 | 0.035 | 0.35-0.75 | 0.40-0.60 | 0.15-0.25 | ||||||||||||||
ASTM A105 | Carbon Steel, Piping | 0.35 | 0.10-0.35 | 0.60-1.05 | 0.040 | 0.035 | 0.40 | 0.40 | 0.30 | 0.12 | 0.08 | 187 | 70 | 36 | 22 | 30 | |||||||
ASTM A181 | Carbon Steel, General | 60 | 0.35 | 0.10-0.35 | 1.10 | 0.050 | 0.050 | 60 | 30 | 22 | 35 | ||||||||||||
70 | 0.35 | 0.10-0.35 | 1.10 | 0.050 | 0.050 | 70 | 36 | 18 | 24 | ||||||||||||||
ASTM A266 | Carbon Steel, Pressure Vessel Components | 1 | 0.30 | 0.15-0.35 | 0.40-1.05 | 0.025 | 0.025 | 60-85 | 30 | 23 | 38 | ||||||||||||
2 | 0.30 | 0.15-0.35 | 0.40-1.05 | 0.025 | 0.025 | 70-95 | 36 | 20 | 33 | ||||||||||||||
3 | 0.35 | 0.15-0.35 | 0.80-1.35 | 0.025 | 0.025 | 70-95 | 36 | 20 | 33 | ||||||||||||||
4 | 0.30 | 0.15-0.35 | 0.80-1.35 | 0.025 | 0.025 | 75-100 | 37.5 | 19 | 30 | ||||||||||||||
ASTM A350 | Carbon and Low Alloy Steel, Piping Components | LF1 | 0.30 | 0.15-0.30 | 0.60-1.35 | 0.040 | 0.035 | 0.40 | 0.40 | 0.30 | 0.12 | 0.08 | 0.02 | 60-85 | 30 | 25 | 38 | 13 | 10 | -20 | |||
LF2-1 | 0.30 | 0.15-0.30 | 0.60-1.35 | 0.040 | 0.035 | 0.40 | 0.40 | 0.30 | 0.12 | 0.08 | 0.02 | 70-95 | 36 | 22 | 30 | 15 | 12 | -50 | |||||
LF2-2 | 0.30 | 0.15-0.30 | 0.60-1.35 | 0.040 | 0.035 | 0.40 | 0.40 | 0.30 | 0.12 | 0.08 | 0.02 | 70-95 | 36 | 22 | 30 | 20 | 15 | 0 | |||||
LF3-1 | 0.20 | 0.20-0.35 | 0.90 | 0.040 | 0.035 | 0.40 | 3.30-3.70 | 0.30 | 0.12 | 0.03 | 0.02 | 70-95 | 37.5 | 22 | 35 | 15 | 12 | -150 | |||||
LF3-2 | 0.20 | 0.20-0.35 | 0.90 | 0.040 | 0.035 | 0.40 | 3.30-3.70 | 0.30 | 0.12 | 0.03 | 0.02 | 70-95 | 37.5 | 22 | 35 | 20 | 15 | -150 | |||||
LF5-1 | 0.30 | 0.20-0.35 | 0.60-1.35 | 0.040 | 0.035 | 0.40 | 1.00-2.00 | 0.30 | 0.12 | 0.03 | 0.02 | 60-85 | 30 | 25 | 38 | 15 | 12 | -75 | |||||
LF5-2 | 0.30 | 0.20-0.35 | 0.60-1.35 | 0.040 | 0.035 | 0.40 | 1.00-2.00 | 0.30 | 0.12 | 0.03 | 0.02 | 70-95 | 37.5 | 22 | 35 | 15 | 12 | -75 | |||||
LF6-1 | 0.22 | 0.15-0.30 | 1.15-1.50 | 0.025 | 0.025 | 0.40 | 0.40 | 0.30 | 0.12 | 0.04-0.11 | 0.02 | 0.01-0.03 | 66-91 | 52 | 22 | 40 | 15 | 12 | -60 | ||||
LF6-2 | 0.22 | 0.15-0.30 | 1.15-1.50 | 0.025 | 0.025 | 0.40 | 0.40 | 0.30 | 0.12 | 0.04-0.11 | 0.02 | 0.01-0.03 | 75-100 | 60 | 20 | 40 | 20 | 15 | -60 | ||||
LF6-3 | 0.22 | 0.15-0.30 | 1.15-1.50 | 0.025 | 0.025 | 0.40 | 0.40 | 0.30 | 0.12 | 0.04-0.11 | 0.02 | 0.01-0.03 | 75-100 | 60 | 20 | 40 | 20 | 15 | 0 | ||||
LF9 | 0.20 | 0.40-1.06 | 0.040 | 0.035 | 0.75-1.25 | 1.60-2.24 | 0.30 | 0.12 | 0.03 | 0.02 | 63-88 | 46 | 25 | 38 | 13 | 10 | -20 | ||||||
LF787-2 | 0.07 | 0.40 | 0.40-0.70 | 0.025 | 0.025 | 1.00-1.30 | 0.70-1.00 | 0.60-0.90 | 0.15-0.25 | 0.03 | 0.02 min | 65-85 | 55 | 20 | 45 | 15 | 12 | -75 | |||||
LF787-3 | 0.07 | 0.40 | 0.40-0.70 | 0.025 | 0.025 | 1.00-1.30 | 0.70-1.00 | 0.60-0.90 | 0.15-0.25 | 0.03 | 0.02 min | 75-95 | 65 | 20 | 45 | 15 | 12 | -100 | |||||
ASTM A521 | Closed Die Forging, General use | AA | 80 | 50 | 24 | 40 | |||||||||||||||||
AB | 80 | 55 | 26 | 52 | |||||||||||||||||||
AC | 96 | 70 | 20 | 50 | |||||||||||||||||||
AD | 90 | 65 | 20 | 50 | |||||||||||||||||||
AE | 105 | 80 | 20 | 50 | |||||||||||||||||||
AF | 125 | 105 | 16 | 50 | |||||||||||||||||||
AG | 145 | 120 | 15 | 45 | |||||||||||||||||||
AH | 170 | 140 | 13 | 40 | |||||||||||||||||||
CA | |||||||||||||||||||||||
CC | 60 | 30 | 25 | 36 | |||||||||||||||||||
CC1 | 66 | 33 | 23 | 36 | |||||||||||||||||||
CE | 75 | 37 | 24 | 40 | |||||||||||||||||||
CF | 80 | 40 | 22 | 36 | |||||||||||||||||||
CF1 | 85 | 44 | 25 | 40 | |||||||||||||||||||
CG | 90 | 55 | 20 | 39 | |||||||||||||||||||
ASTM A668 | Carbon Steel Forging | A (AH) | 1.35 | 0.050 | 0.050 | 183 | 47 | ||||||||||||||||
B (BH) | 1.35 | 0.050 | 0.050 | 120-174 | 60 | 30 | 30 | 24 | 36 | ||||||||||||||
C (CH) | 1.35 | 0.050 | 0.050 | 137-183 | 66 | 33 | 33 | 22 | 34 | ||||||||||||||
D (DH) | 1.35 | 0.050 | 0.050 | 149-207 | 75 | 37 | 37 | 19 | 30 | ||||||||||||||
E (EH) | 1.35 | 0.050 | 0.050 | 174-217 | 83 | 43 | 43 | 22 | 35 | ||||||||||||||
F (FH) | 1.35 | 0.050 | 0.050 | 174-217 | 82 | 48 | 48 | 19 | 36 | ||||||||||||||
Alloy Steel Forging | G (GH) | 0.040 | 0.040 | 163-207 | 80 | 50 | 50 | 22 | 38 | ||||||||||||||
H (HH) | 0.040 | 0.040 | 187-235 | 90 | 58 | 58 | 18 | 40 | |||||||||||||||
J (JH) | 0.040 | 0.040 | 207-255 | 90 | 65 | 65 | 18 | 48 | |||||||||||||||
K (KH) | 0.040 | 0.040 | 207-269 | 100 | 75 | 75 | 18 | 48 | |||||||||||||||
L (LH) | 0.040 | 0.040 | 223-293 | 110 | 85 | 85 | 14 | 40 | |||||||||||||||
M (MH) | 0.040 | 0.040 | 269-341 | 135 | 110 | 110 | 12 | 38 | |||||||||||||||
N (NH) | 0.040 | 0.040 | 321-402 | 160 | 130 | 130 | 11 | 35 |