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PIPE & TUBE ASTM STANDARDS

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ASTM A 192M-89 / ASME A 192 

Seamless Carbon Steel Boiler Tubes for High Pressure Service

This standard is issued under the fixed designation A 192/A 192M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon ( ε) indicates an editorial change since the last revision or reapproval. This specification has been approved for use by agencies of the Department of Defense. Consult the DoD Index of Specifications and Standards for specific year of issue which has been adopted by the Department of Defense.

1.Scope 

1.1 This specification covers minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for high-pressure service.

1.2 The tubing sizes and thicknesses usually furnished to this specification are 1/2 in. to 7 in. [12.7 to 177.8 mm] outside diameter and 0.085 to 1.00 in. [2.2 to 25.4 mm], inclusive, in minimum wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.

1.3 Mechanical property requirements do not apply to tubing smaller than 1/8 in [3.2 mm] inside dimeter or 0.015 in. [0.4 mm] thickness.

1.4 When these products are to be used in applications conforming to ISO Recommendations for Boiler Construction, the requirements of specification A 520 shall supplement and supersede the requirements of this specification.

1.5 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be 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
- S 0.06~0.18 0.25Max 0.27~0.63 0.035Max 0.035Max - - - -


Mechanical Properties 
Grade Tensile Test MPa or N/mm2 Remaks 
(Similar to JIS)		 Possibility Temperature
Min Yield point Tensile Strength
- - (STB340)


Hardness Requirements 
The tubes shall have a hardness number not exceeding the following;

Brinell Hardness Number 
(Tubes 0.200 in. [5.1 mm] and over in wall thickness)		 Rockwell Hardness Number 
(Tubes less than 0.200 in. [5.1 mm] in wall thickness)
137 HB 77 HRB

EXPLANATORY NOTE

Note-For purposes of design, the following tensile properties may be assumed: Tensile strength, min, ksi [MPa]
Yield strength, min, ksi [MPa]
Elongation in 2 in. or 50 mm, min, %

Material Comparison Tables (ASTM ¡æKS, JIS, DIN, BS, NBN, NF, UNI) 

ASTM
STANDARD
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 Number
Re
marks

A 192

Seamless C-Steel Boiler Tube for High Pressure Service

 K01201 STBH 340 / STB 340 D3563 / G3461 (30) St 35.8 17175 1.0305 3059 320 (27)(30) D45 837 (27) TU 37C A49-213 (27) C14 5462

(27)


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
A49-245
TS34e
C
C010
(STB35)
A192
-
C
"
CFS320
C
"
TS34c
C
A226
-
C
"
ERW320
C
A556
GrA2
C
"
CEW320
C
A557
GrA2
C
"
S1 360
C
"
S2 360
C
"
ERW 360
C
"
CEW360
C
3606
ERW320
C
"
CEW320
C
"
CFS320
C
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
A556
GrB2
C
"
ERW 440
C
A49-243
TS42c
A557
GrB2
C
"
CEW 440
C
A49-245
TS42c
3602
HFS 410
C
"
TS42c
"
CFS 410
C
"
ERW 410
C
"
CEW 410
C
3606
ERW 440
C
"
CEW 440
C
"
CFS 440
C
STB510
C
C
17175
19Mn5
C
A49-213
TU52C
C
2604/2
TS18
C
(STB52)
C
A49-248
TU52C
C

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