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ASTM A 135-89a / ASME SA 135-89a 

Pipe Steel Electric Fusion(ARC) Welded
 

This standard is issued under the fixed designation A 135; 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 two grades of electric-resistance-welded steel pipe in NPS 2 TO NPS 30 inclusive, with nominal (average) wall thickness up to 0.500 in. ( 12.70 mm), inclusive, and in nominal sizes 3/4 to 5 in. (19 to 127 mm) inclusive with nominal (average) wall thickness 0.083 in. (2.11 mm) to 0.314 in. (3.40 mm), depending on size.Pipe having other dimensions 9Note 1) may be furnished provided such pipe complies with all other requirements of this specification. 

The pipe in intended for conveying liquid, gas, or vapor; and only Grade A is adapted for flanging and bending (Note 2). The suitability of pipe for various purposes in somewhat dependent upon its dimensions, properties, and conditions of service, so that the purpose for which the pipe is intended should be stated in the order.

T he pipe may be furnished either nonexpanded or cold expanded, the amount of expansion shall not exceed 
1.5? of the outside diameter pipe size. 

NOTE 1? A comprehensive listing of standardized pipe dimensions is contained in ANSI B36.10.
NOTE 2? This provision is not intended to prohibit the cold bending of Grade B pipe.

1.2 The values stated in inch-pound units are to be regarded as the standard.

Chemical composition

Grade Mfg. process            Chemical Composition         (%)
C Si Mn P S
Gr A E 0.25Max - 0.95Max 0.050Max 0.060Max
Gr B E 0.30Max - 1.20Max 0.050Max 0.060Max

Mechanical Properties 

Grade   Tenssile Test MPa or N/mm2  Remarks (Similar to JIS) possibility
temperature
MIn. Yield Point Tensile Strength
Gr A 207 331Min (STPG370)
Gr B  241 414Min  (STPG410)


  Chemical Composition


The steel shall conform to the following requirements as to chemical composition: %, max

Element Grade A Grade B
Carbon 0.25 0.30
Manganese 0.95 1.20
Phosphorus 0.035 0.035
Sulfur 0.035 0.035

 

NPS Numbers of Samples Selected
Under 6 2 form each lot of 400 pipes or fraction thereof
6 to 20, incl 2 form each lot of 200 pipes or fraction thereof
Over 20 to 30, incl 2 form each lot of 100 pipes or fraction thereof

TABLE 1 Tensile Requirements 


- Grade A Grade B
Tensile strength, min, psi (MPa)
Yield strength, min, psi(MPa) Elongation in 2 in. or 50 mm, min, %
Basic minimum elongation for walls 5/16 in. (7.9 mm) and over in thickness, longitudinal strip tests,and for all samll sizes tested in full section
For longitudinal strip tests, the width of the gage section shall be 1 1/2 in. (38.1 mm) and a deduction for each 1/32-in. (0.8-mm) decrease in wall thickness below 5/16 in. (7.9mm) from the basic minimum elongation of the following percentage points
48 (331) 60 (414)
30 (207) 35 (241)
35 30
1.75A 1.50A
A The following table gives the computed minimum values:
Wall Thickness Elongation in 2 in. (50 mm), min, %
Grade A Grade B
5/16 (0.312) (7.94 mm) 35.00 30.00
9/32 (0.281) (7.14 mm) 33.25 28.50
1/4 (0.250) (6.35 mm) 31.50 27.00
7/32 (0.219) (5.56 mm) 29.75 25.50
3/16 (0.188) (4.76 mm) 28.00 24.00
5/32 (0.156) (3.97 mm) 26.25 22.50
1/8 (0.125) (3.18 mm) 24.50 21.00
3/32 (0.094) (2.38 mm) 22.75 19.50
1/16 (0.062) (1.59 mm) 21.00 18.00

Note-The above table gives the computed minimum eiongation values for each 1/32-in. (0.79-mm) decrease in wall thickness. Where the wall thickness lies between two vallues shown above. the minimum elongation value is determined by the following equation: 
Grade Equation
A E = 56t + 17.50
B E = 48t + 15.00

where:
E = elongation in 2 in. (50 mm), %, and t = actual thickness of spectimen, in.  


APPENDIX (Nonmandatory Information) X1.

ADDITIONAL DATA TABLE X1.1

Table of Minimum Wall Thickness on Inspection for Nominal (Average) Pipe Wall Thicknesses


Note 1-The following equation, upon which this table is based, may be applied to calcalate minimum wall thickness from nominal (average) wall thickness:

tn X 0.875 = tm where
tn=nominal (average) wall thickness, in., and 
tm=minimum wall thickness,in. 

The wall thickness is expressed to three decimal places, the fourth decimal place being carried forward or dropped, in accordance with Practive E 29.

Note 2-This table covers some wall thicknesses associated with standard pipe sizes but is not meant to imply that these are the only thicknesses obtainable under this specification.
Nominal
(Average)
Thickness(tn)in. mm
Minimum
Thickness
on inspection(tm)in. mm
Nominal
(Average)
Thickness(tn)in. mm
Minimum
Thickness
on inspection(tm)in. mm
Nominal
(Average)
Thickness(tn)in. mm
Minimum
Thickness
on inspection(tm)in. mm
0.068 (1.73) 0.060 (1.52) 0.294 (7.47) 0.257 (6.53) 0.750 (19.05) 0.656 (16.66)
0.088 (2.24) 0.077 (1.96) 0.300 (7.62) 0.262 (6.65) 0.812 (20.62) 0.710 (18.03)
0.091 (2.31) 0.080 (2.03) 0.307 (7.80) 0.269 (6.83) 0.843 (21.41) 0.738 (18.75)
0.095 (2.41) 0.083 (2.11) 0.308 (7.82) 0.270 (6.86) 0.864 (21.95) 0.756 (19.20)
0.013 (2.87) 0.099 (2.51) 0.312 (7.92) 0.273 (6.93) 0.875 (22.23) 0.766 (19.46)
0.119 (3.02) 0.104 (2.64) 0.318 (8.08) 0.278 (7.06) 0.906 (23.01) 0.793 (20.14)
0.125 (3.18) 0.109 (2.77) 0.322 (8.18) 0.282 (7.16) 0.937 (23.80 0.820 (20.83)
0.126 (3.20) 0.110 (2.79) 0.330 (8.38) 0.289 (7.34) 0.968 (24.59) 0.847 (21.51)
0.133 (3.38) 0.116 (2.95) 0.337 (8.56) 0.295 (7.49) 1.000 (25.40) 0.875 (22.23)
0.140 (3.56) 0.122 (3.10) 0.343 (8.71) 0.300 (7.62) 1.031 (26.19) 0.902 (22.91)
0.145 (3.68) 0.127 (3.23) 0.344 (8.74) 0.301 (7.65) 1.062 (26.97) 0.929 (23.60)
0.147 (3.73) 0.129 (3.28) 0.358 (9.09) 0.313 (7.95) 1.093 (27.76) 0.956 (24.28)
0.154 (3.91) 0.135 (3.43) 0.365 (9.27) 0.319 (8.10) 1.125 (28.58) 0.984 (24.99)
0.156 (3.96) 0.136 (3.45) 0.375 (9.53) 0.328 (8.33) 1.156 (29.36) 1.012 (25.70)
0.179 (4.55) 0.157 (3.99) 0.382 (9.70) 0.334 (8.48) 1.218 (30.94) 1.066 (27.08)
0.187 (4.75) 0.164 (4.14) 0.400 (10.16) 0.350 (8.89) 1.250 (31.75) 1.094 (27.79)
0.188 (4.78) 0.164 (4.14) 0.406 (10.31) 0.355 (9.02) 1.281 (32.54) 1.121 (28.47)
0.191 (4.85) 0.167 (4.24) 0.432 (10.97) 0.378 (9.60) 1.312 (33.33) 1.148 (29.16)
0.200 (5.08) 0.175 (4.45) 0.436 (11.07) 0.382 (9.70) 1.343 (34.11) 1.175 (29.85)
0.203 (5.16) 0.178 (4.52) 0.437 (11.10) 0.382 (9.70) 1.375 (34.93) 1.203 (30.56)
0.216 (5.49) 0.189 (4.80) 0.438 (11.13) 0.383 (9.73) 1.406 (35.71) 1.230 (31.24)
0.218 (5.54) 0.191 (4.85) 0.500 (12.70) 0.438 (11.13) 1.437 (36.53) 1.258 (31.95)
0.219 (5.56) 0.192 (4.88) 0.531 (13.49) 0.465 (11.81) 1.500 (38.10) 1.312 (33.33)
0.226 (5.74) 0.198 (5.03) 0.552 (14.02) 0.483 (12.27) 1.531 (38.89) 1.340 (30.04)
0.237 (6.02) 0.207 (5.26) 0.562 (14.27) 0.492 (12.50) 1.562 (39.68) 1.367 (34.72)
0.250 (6.35) 0.219 (5.56) 0.593 (15.06) 0.519 (13.18) 1.593 (40.46) 1.394 (35.41)
0.258 (6.55) 0.226 (5.74) 0.600 (15.24) 0.525 (13.34) 1.750 (44.45) 1.531 (38.89)
0.276 (7.01) 0.242 (6.15) 0.625 (15.88) 0.547 (13.89) 1.781 (45.24) 1.558 (39.57)
0.277 (7.04) 0.242 (6.15) 0.656 (16.66) 0.574 (14.58) 1.812 (46.03) 1.586 (40.28)
0.279 (7.09) 0.244 (6.20) 0.674 (17.12) 0.590 (14.99) 1.968 (49.99) 1.722 (43.74)
0.280 (7.11) 0.245 (6.22) 0.687 (17.45) 0.601 (15.27) 2.062 (52.38) 1.804 (45.82)
0.281 (7.14) 0.246 (6.25) 0.719 (18.24) 0.629 (15.98) 2.343 (59.51) 2.050 (52.07)

TABLE X 1.2 Dimensions Nominal Weights and Test Pressures for Light Wall Steel Pipe

NPS Outside
Diameter. in.
Schedule 10 Test Pressure, psi (MPa)A
Nominal Wall
ThicknessA
in. (mm)
Weight, Ib/ft (kg/cm) Grade A Grade B
¾ 1.050 0.083 (2.11) 0.86 (1.28) 2500 (17.24) 2500 (17.24)
1 1.315 0.109 (2.77) 1.40 (2.09) 2500 (17.24) 2500 (17.24)
1.660 0.109 (2.77) 1.81 (2.70) 2400 (16.55) 2500 (17.24)
1.900 0.109 (2.77) 2.08 (3.10) 2100 (14.48) 2400 (16.55)
2 2.375 0.109 (2.77) 2.64 (3.93) 1700 (11.72) 1900 (13.10)
2.875 0.120 (3.05) 3.53 (5.26) 1500 (10.34) 1700 (11.72)
3 3.500 0.120 (3.05) 4.33 (6.45) 1200 (8.27) 1400 (9.65)
4.000 0.120 (3.05) 4.97 (7.41) 1000 (6.89) 1200 (8.27)
4 4.500 0.120 (3.05) 5.61 (8.36) 900 (6.21) 1100 (7.58)
5 5.563 0.134 (3.40) 7.77 (11.58) 850 (5.86) 1000 (6.89)

A The test pressures are calculated by the following equation (but shall not exceed 2500 psi or 17.24 MPa):

P =2St/D 

where: P = pressure, psi (MPa) S = fiber stress, 60 % of the specified minimum yield point,
t = specified thickness of wall, in. (mm), andD = specified outside diameter, in. (mm). 


  JIS Number and Corrensponding Foreign Standards

JIS ASTM BS DIN NF ISO Index Number
Standard Number Grade Type Standard Number Grade Type Standard Number Grade Type Standard Number Grade Type Standard Number Grade Type Standard Number Grade Type
G3454 STPG370 (STPG38) C A135 Gr A C 3601 ERW360 C 1626 St37.0 C A49-112 TS27b C 559 TS4 C C002        
A587 - C " S360 C 1629 St37.0 C A49-141 TS37a C 2604/2 TS4 C
17172 StE210.7 C A49-142 TS37a C 2604/3 TW4 C
" TS37b C
A49-150 TSE235 C
A49-212 TS37c C
A49-242 TS37c C
A49-250 TAE24a C
A49-400 TSE220 C
STPG410 (STPG42) C A135 GrB C 3601 ERW410 C 1626 St44.0 C A49-112 TS42b C 559 TS9 C
A524 - C " S410 C A49-141 TS42b C 2604/2 TW9 C
A49-212 TS42c C 2604/3 TW9 C
A49-242 TS42c C 3183 E24-1 C
A49-250 TSE26b C "; E24-2
A49-400 TSE250 C

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