ASTM A199M-89
Seamless Cold Drawn Intermediate Alloy Steel
Heat Exchanger and Condenser Tubes
This standard is issued snder the fixed designatioa A 199/A 199M ; the number immediately following the designation indicates the year of original adpton or , in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covedrs several grades of minimum-wall-thickness, chromium-molybdenum and chromium-molybdenum-silicon, seamless, cold-drawn, intermediate alloy steel tubes for heat exchangers, condensers, and similar heat transfer apparatus.
1.2 The tubing sizes usually furnished to this specification are 1/8 to 3 in. [3.2 to 76.2 mm) in outside diameter. Tubing having other dimensions may be furnished provided such tubes comply with all other requirements of this spedification.
1.3 Mechanical property requirements do not apply to tubing smaller than 1/8 in [3.2 mm] in inside diameter or 0.015 in [0.4mm] in thickness.
1.4 The values stated in either inch-pound units or SO units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therfore, each system must ve used independently of the other.
Combining values from the two systems may result in nonconformance with the specification.
The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.
Chemical composition
Grade | Mfg. Process | Chemical composition(%) | ||||||||
C | Si | Mn | P | S | Ni | Cr | Mo | Others | ||
T4 | S | 0.05~0.15 | 0.50~1.00 | 0.30~0.60 | 0.030Max | 0.030Max | – | 2.15~2.82 | 0.44~0.65 | – |
T5 | S | 0.15Max | 0.50Max | 0.30~0.60 | 0.030Max | 0.030Max | – | 4.00~6.00 | 0.45~0.65 | – |
T7 | S | 0.15Max | 0.50~1.00 | 0.30~0.60 | 0.030Max | 0.030Max | – | 6.00~8.00 | 0.45~0.65 | – |
T9 | S | 0.15Max | 0.50~1.00 | 0.30~0.60 | 0.030Max | 0.030Max | – | 8.00~10.00 | 0.90~1.10 | – |
T11 | S | 0.05~0.15 | 0.25~1.00 | 0.30~0.60 | 0.030Max | 0.030Max | – | 1.00~1.50 | 0.44~0.65 | – |
T21 | S | 0.05~0.15 | 0.50~1.00 | 0.30~0.60 | 0.030Max | 0.030Max | – | 2.65~3.35 | 0.80~1.06 | – |
T22 | S | 0.05~0.15 | 0.50Max | 0.30~0.60 | 0.030Max | 0.030Max | – | 1.90~2.60 | 0.87~1.13 | – |
T91 | S | 0.05~0.15 | 0.50Max | 0.30~0.60 | 0.020Max | 0.010Max | 0.40Max | 8.00~9.50 | 0.85~1.05 | V 0.18~0.25 Cb 0.06~0.10 N 0.03~0.07 AL 0.04Max |
Mechanical Properties
Grade | Tensile Test MPa or N/mm2 | Remaks (Similar to JIS) | Possibility Temperature | |
Min Yield point | Tensile Strength | |||
T4 | 170 | 415Min | – | |
T5 | 170 | 415Min | (STBA25) | |
T7 | 170 | 415Min | – | |
T9 | 170 | 415Min | (STBA26) | |
T11 | 170 | 415Min | (STBA23) | |
T21 | 170 | 415Min | – | |
T22 | 170 | 415Min | (STBA24) | |
T91 | 170 | 415Min | – |
TABLE 1 Chemical Requirements
Grade | Composition, % | |||||||
Carbon | Manganese | Phosphorus, max | Sulfur, max | Silicon | Chromium | Molybdenum | Others | |
T4 | 0.05 min-0.15 max | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 2.15-2.85 | 0.44-0.65 | … |
T5 | 0.15 max | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 4.00-6.00 | 0.45-0.65 | … |
T9 | 0.15 max | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 | … |
T11 | 0.05 min-0.15 max | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 | … |
T21 | 0.05 min-0.15 max | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 2.65-3.35 | 0.80-1.06 | … |
T22 | 0.05 min-0.15 max | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 1.90-2.60 | 0.87-1.13 | … |
T91 | 0.08-0.12 | 0.30-0.60 | 0.020 | 0.010 | 0.20-0.50 | 8.00-9.50 | 0.85-1.05 | Ni 0.40 max; V |
– | – | – | – | – | – | – | – | 0.18-0.25; Cb |
– | – | – | – | – | – | – | – | 0.06-0.10; N |
– | – | – | – | – | – | – | – | 0.03-0.07; Al |
– | – | – | – | – | – | – | – | 0.04 max |
TABLE 2 Tensile Requirements
– | All Grades Except T91 | Grade T91 | ||
Tensile strength, min, psi [MPa] Yield strength, min, psi[MPa] Elongation in 2 in. or 50 mm, min, % When standard round 2-in. or 50-mm gage length or small er proportionally sized specimen with the gage length equal to 4D (four times the diameter) is used | 60 [415] | 85 [585] | ||
25 [170] | 60 [415] | |||
30 | 20 | |||
1.50A | 1.00A | |||
22 | – | |||
AThe following table gives the computed minimum values: | ||||
Wall Thickness in. [mm] | Elongation in 2 in. 50 mm, min, %B | |||
5/16 (0.312) [8] | 30 | 20 | ||
9/32 (0.281) [7.2] | 28 | 19 | ||
1/4 (0.250) [6.4] | 27 | 18 | ||
7/32 (0.219) [5.6] | 26 | 17 | ||
3/16 (0.188) [4.8] | 24 | 16 | ||
5/32 (0.156) [4] | 23 | 15 | ||
1/8 (0.125) [3.2] | 21 | 14 | ||
3/32 (0.094) [2.4] | 20 | 13 | ||
1/16 (0.062) [1.6] | 18 | 12 | ||
0.062 to 0.035 [1.6 to 0.9], excl | 17 | 12 | ||
0.035 to 0.022 [0.9 to 0.6], excl | 16 | 11 | ||
0.022 to 0.015 [0.6 to 0.4]. incl | 16 | 11 |
Note-The above table gives the computed minimum eiongation values for each 1/32-in. [0.8 mm] decrease in wall thickness. Where the wall thickness lies between two vallues shown above. The minimum elongation value shall be detemined by the following equation: For all Grades except T91:E =48t + 15.00 [E = 1.87t + 15.00] For Grade T91: E = 32t + 10.00 where: E = elongation in 2 in.or 50 mm, %, and t = actual thickness of spectimen, in. BCalculated elongation requirements shall be rounded to the nearest whole number. |
TABLE 3 Number of Tubes in a Lot Heat Treated by the Continuous Process
Size of Tube | Size of Lot |
2 in. [50.8 mm] and over in outside diameter and o.200 in. [5.1 mm] and over in wall thickness | not more than 50 tubes |
Less than 2 in. [50.8 mm] but over 1 in. [25.4 mm] in outside diameter or over 1 in. [25.4 mm] in outside diameter and under 0.200 in. [5.1 mm] in wall thickness | not more than 75 tubes |
1 in. [25.4 mm] or less in outside diameter | not more than 125 tubes |
Material Comparison Tables (ASTM ¡æKS, JIS, DIN, BS, NBN, NF, UNI)
ASTMS TANDARD | UNS NO. | KOREA/JAPANES | GERMAN | BRITISH | BELGIAN | FRENCH | ITALIAN | |||||||||||||
KS/JIS Symbol | KS/JIS Numbe | Re marks | DIN Type | DIN Number | Materiral Number | Re marks | B.S Number | B.S Grade | Remarks | NBN Type | NBN Grade | Re marks | AFNOR Type | NF Number | Re marks | UNI Type | UNI No | Re marks | ||
A 199 Seamless Cold Drawn Intermediate Alloy Steel Heat Exchange and Condenser Tubes | ||||||||||||||||||||
T5 | K41545 | STHA 24 / STBA 25 | D3572 / G3462 | (35) | 12 CrMo 19 5 | 1.7362 | (3a) | 3606 | CFS 625 | (35) | X 12 Cr Mo 5 | 837 | (35) | Z 12 CD 5.05 | (3a) | (3); dalmine 234 | ||||
T11 | K11597 | STHA 22 / STBA 23 | D3572 / G3462 | (35) | 13 CrMo 44 | 17175 | 1.7335 | (8) | 3606 | CFS 621 | (35) | 10 CD 5.05 | (3a) | (3); dalmine 227(10) | ||||||
T22 | K21590 | STHA 23 / STBA 24 | D3572 / G3462 | (35) | 10 CrMo 9 10 | 17175 | 1.7380 | 3606 | CFS 622 | (35) | 10 Cr Mo 9 10 | 837 | (35) | 10 CD 9.10 | (3a) | 12CrMo 9 10 | 5462 | (10)0 |
JIS Number and Corrensponding Foreign Standards
JIS | ASTM | BS | DIN | NF | ISO | Index Number | ||||||||||||
Standard Number | Grade | Tupe | Standard Number | Grade | Tupe | Standard Number | Grade | Tupe | Standard Number | Grade | Tupe | Standard Number | Grade | Tupe | Standard Number | Grade | Tupe | |
G3462 | STBA12 | Mo | A209 | T1 | Mo | 3606 | ERW245 | Mo | C011 | |||||||||
A250 | T1 | Mo | “ | CEW245 | Mo | |||||||||||||
“ | CFS245 | Mo | ||||||||||||||||
STBA13 | Mo | A209 | T1-A | Mo | ||||||||||||||
A250 | T1-a | Mo | ||||||||||||||||
A629 | – | Mo | ||||||||||||||||
STBA20 | CrMo | A213 | T2 | CrMo | ||||||||||||||
STBA22 | CrMo | A213 | T12 | CrMo | 3059 | S1 620 | CrMo | 17175 | 13CrMo44 | CrMo | ||||||||
“ | S2 620 | CrMo | ||||||||||||||||
3059 | ERW620 | CrMo | ||||||||||||||||
“ | CEW620 | CrMo | ||||||||||||||||
3604 | HFS620-460 | CrMo | ||||||||||||||||
“ | CFS620-460 | CrMo | ||||||||||||||||
“ | ERW620-460 | CrMo | ||||||||||||||||
“ | CEW620-460 | CrMo | ||||||||||||||||
“ | HFS620-440 | CrMo | ||||||||||||||||
“ | CFS620-440 | CrMo | ||||||||||||||||
“ | ERW620-440 | CrMo | ||||||||||||||||
“ | CEW620-440 | CrMo | ||||||||||||||||
3606 | ERW620 | CrMo | ||||||||||||||||
“ | CEW620 | CrMo | ||||||||||||||||
“ | CFW620 | CrMo | ||||||||||||||||
STBA23 | CrMo | A199 | T11 | CrMo | 3604 | HF621 | CrMo | A49-213 | TU10CD | CrMo | ||||||||
A213 | T11 | CrMo | “ | CFS621 | CrMo | A49-215 | TU10CD5.05 | CrMo | ||||||||||
“ | ERW621 | CrMo | ||||||||||||||||
“ | CEW621 | CrMo | ||||||||||||||||
3606 | ERW621 | CrMo | ||||||||||||||||
“ | CEW621 | CrMo | ||||||||||||||||
“ | CFS621 | CrMo | ||||||||||||||||
STBA24 | CrMo | A199 | T22 | CrMo | 3059 | S1-622-440 | CrMo | 17175 | 10CrMo910 | CrMo | A49-213 | Tu10CD9.10 | CrMo | |||||
A213 | T22 | CrMo | “ | S2-622-440 | CrMo | A49-215 | Tu!0CD9.10 | CrMo | ||||||||||
“ | S1-622-490 | CrMo | ||||||||||||||||
“ | S2-622-490 | CrMo | ||||||||||||||||
STBA25 | CrMo | A199 | T5 | CrMo | 3604 | HFS625 | CrMo | 260 4/2 | TS37 | CrMo | ||||||||
A213 | T5 | CrMo | “ | CFS625 | CrMo | |||||||||||||
3606 | CFS625 | CrMo | ||||||||||||||||
STBA26 | CrMo | A199 | T9 | CrMo | 3059 | S1-629-470 | CrMo | A49-213 | TUZ10CD9 | CrMo | ||||||||
A213 | T9 | CrMo | “ | S2-629-470 | CrMo | A49-215 | TUZ10CD9 | CrMo | ||||||||||
“ | S1-629-470S2-629-590 | CrMo | ||||||||||||||||
“ | S2-629-590 | CrMo | ||||||||||||||||
3604 | HFS629-470 | CrMo |