TUBO DE ACERO Crbon ASTM A178
La norma ASTM A178 se refiere al espesor mínimo de pared para tuberías soldadas por resistencia. Los materiales son acero al carbono y acero al carbono y manganeso, las tuberías ASTM A178 se utilizan para tubos de calderas, chimeneas de calderas, chimeneas de sobrecalentadores y extremos de seguridad. Acero grado A (acero al carbono dulce). C (acero medio carbono) o D (acero carbono manganeso).El proceso de fabricación debe incluir tratamiento térmico, enfriamiento y luego soldadura, si lo solicita el cliente se puede realizar una prueba de trituración.
CSC STEEL exporta tuberías y tubos ERW en diferentes tamaños y formas, al igual que otros tubos soldados y tubos sin costura, los tubos o tuberías ERW pueden biselarse, roscarse, acoplarse, terminarse en negro, desnudos o entregarse con una capa protectora. otros grados de acero: tubería estructural ASTM A53, tubería de línea API 5L, tubería de pilling ASTM A252.
CSC STEEL ofrece tubos ASTM A178 ERW como tubos de precisión para aplicaciones de calderas, sobrecalentadores e intercambiadores de calor. Si necesita tubos de precisión para otros proyectos, lea Productos de tubos y tuberías para calderas o envíe una cotización.
ASTM A178 ERW Pipe/Tube Chemical Composition:
| Steel Grade |
Element |
Chemical Composition, % |
Grade A,
Low-Carbon Steel |
Grade C,
Medium-Carbon Steel |
Grade D,
Carbon-Man-ganese Steel |
| ASTM A178 |
Carbon |
0.06-0.18 |
0.35 max |
0.27 max |
| Manganese |
0.27-0.63 |
0.80 max |
1.00-1.50 |
| Phosphorus, max |
0.035 |
0.035 |
0.030 |
| Sulfur, max |
0.035 |
0.035 |
0.015 |
| Silicon |
... |
... |
0.10 min |
ASTM A178 ERW Pipe/Tube Cruch Test:
| Steel Grade |
WallThickness of Tubes, in. [mm] |
Heightof Crushed Section, in. [mm] |
| Grade A Tubes |
Grade C and D Tubes |
| ASTM A178 |
0.135[3.43] and under |
3/4[19] or until outside folds are in contact |
Crushtests not required |
| Over0.135 [3.43] |
11/4 [32] |
... |
ASTM A178 ERW Pipe/Tube Mechanical Property:
| ASTM A178 |
Grade C |
Grade D |
| Tensilestrength, min, kis [MPa] |
255 |
275 |
| YieldStrength, min, ksi [MPa] |
415 |
485 |
| Elongationin 2 in. or 50 mm, min, % |
30 |
30 |
Comparison Tables (ASTM °CKS, JIS, DIN, BS, NBN, NF, UNI):
| ASTM STANDARD |
UNS NO. |
KOREA/JAPANES |
GERMAN |
BRITISH |
BELGIAN |
FRENCH |
ITALIAN |
| KS/JIS Symbol |
KS/JIS Numbe |
Remarks |
DIN Type |
DIN
Number |
Materiral
Number |
Remarks |
B.S
Number |
B.S Grade |
|
NBN Type |
NBN Grade |
Remarks |
AFNOR Type |
NF Number |
Ramarks |
UNI Type |
UNI Number |
Ramarks |
A 178
C-Steel Electric-Resistance-Welded Boiler Tubes |
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| Grade A |
K01200 |
STBH 340/ STB 35 |
D3563 / G3461 |
St 37.8 |
17177 |
1.0315 |
(7) |
3059 |
ERW 320 |
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(3) |
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|
(3) |
| Grade c |
K03503 |
SHBH 410 / STB 42 |
D3563 / G3461 |
St 42.8 |
17177 |
1.0498 |
(7) |
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(3) |
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(3) |
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 |
| G3461 |
STB340 |
C |
A161 |
LC |
C |
3059 |
HFS320 |
C |
|
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|
A49-245 |
TS34e |
C |
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|
C010 |
| |
(STB35) |
|
A192 |
- |
C |
" |
CFS320 |
C |
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|
" |
TS34c |
C |
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| |
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A226 |
- |
C |
" |
ERW320 |
C |
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| |
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A556 |
GrA2 |
C |
" |
CEW320 |
C |
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A557 |
GrA2 |
C |
" |
S1 360 |
C |
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" |
S2 360 |
C |
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" |
ERW 360 |
C |
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" |
CEW360 |
C |
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3606 |
ERW320 |
C |
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" |
CEW320 |
C |
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" |
CFS320 |
C |
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| |
STB410 |
C |
A179 |
GrC |
C |
3059 |
S1 440 |
C |
17175 |
St45.8 |
C |
A49-213 |
TU42c |
C |
2604/2 |
TS9H |
C |
|
| |
(STB42) |
|
A210 |
GrA1 |
C |
" |
S2 440 |
C |
17177 |
St42.8 |
C |
A49-215 |
TU42c |
C |
" |
TW9H |
C |
|
| |
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A556 |
GrB2 |
C |
" |
ERW 440 |
C |
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A49-243 |
TS42c |
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| |
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A557 |
GrB2 |
C |
" |
CEW 440 |
C |
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A49-245 |
TS42c |
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| |
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3602 |
HFS 410 |
C |
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" |
TS42c |
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" |
CFS 410 |
C |
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" |
ERW 410 |
C |
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" |
CEW 410 |
C |
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3606 |
ERW 440 |
C |
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" |
CEW 440 |
C |
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" |
CFS 440 |
C |
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| STB510 |
C |
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|
C |
17175 |
19Mn5 |
C |
A49-213 |
TU52C |
C |
2604/2 |
TS18 |
C |
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| (STB52) |
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C |
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A49-248 |
TU52C |
C |
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