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Technical Sheet III

SPEC.ASTM A312 A335 A350
GRADE TP304 TP304H TP304L TP316 TP316H TP316L TP321 TP321H TP347 TP347H P5 P9 P11 P22 LF2 LF3
C   min 0.08 0.04 0.035 0.08 0.04 0.035 0.08 0.04 0.08 0.04 0.15 0.15 0.05 0.05 0.35 0.2
max 0.1 0.1 0.1 0.1 0.15 0.15
Mn   min 2 2 2 2 2 2 2 2 2 2 0.3 0.3 0.3 0.3 0.6
max 0.6 0.6 0.6 0.6 1.35 0.9
P max 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.025 0.025 0.025 0.025 0.035 0.035
S max 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.025 0.025 0.025 0.025 0.04 0.04
Si   min 0.25 0.5 0.15 0.2
max 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 1 1 0.5 0.3 0.3
Cu max 0.40 B 0.40 c
NI   min 8 8 8 11 11 10 9 9 9 9 0.40 B 3.3
max 11 11 13 14 14 15 13 13 13 13 3.7
Cr   min 18 18 18 16 16 16 17 17 17 17 4 8 1 1.9
max 20 20 20 18 18 18 20 20 20 20 6 10 1.5 2.6 0.3 Bc 0.3 c
Mo   min 2 2 2 0.45 0.9 0.44 0.87
max 3 3 3 0.5 1.1 0.65 1.13 0.12 Bc 0.12 c
Nb max 0.02 0.02
AL
Ti
Bo
V max 0.05 0.03
Tensile strength min.   PSI x 1k 75 75 70 75 75 70 75 75 75 75 60 60 60 60 70- 95 70- 95
MPA 515 515 485 515 515 485 515 515 515 515 415 415 415 415 485- 655 485- 655
Yeld strength min.   PSI x 1k 30 30 25 30 30 25 30 30 30 30 30 30 30 30 36 37.5
MPA 205 205 170 205 205 170 205 205 205 205 205 205 205 205 250 260
Elongation in 2 in. Min. 2%   35 35 35 35 35 35 35 35 35 35 22 22 22 22 22 22
30 35
Hardness test HB.   min
max

(B):the sum of copper, nickel, chromium and molybdenum shall not exceed 1.00% on heat analysis
(C): the sum of chromium and molybdenum shall not exceed 0.32% on heat analysis.