ASTM A178 ERW Steel Tube

ASTM A178 ERW Pipe

ASTM A178 Electric Resistance Welded Tube

ASTM A178 standard referes to electric-resistance-welded tubes with minimum-wall-thickness. Materials are carbon steel and carbon-manganese steel, ASTM A178 pipe and tube is to be used in boiler tubes, boiler flues, superheater flues and safe ends. Steel Grades A (low-carbon steel), C (medium-carbon steel), or D (carbon-manganese steel). Manufacturing processes must include heat treatment, welding after cooling. Crush test shall be performed if required by customer.

AGICO ANSON exports erw pipes and tubes of different sizes and shapes,the same as other welded and seamless pipe, erw pipes or tubes can be delivered as beveled, threaded, coupled,surface treatment as black, bare or protective coating. Erw pipe and tubes also available in other steel grades: ASTM A53 structual pipe, API 5L line pipe, ASTM A252 pilling pipe.

ANSON STEEL supplies ASTM A178 erw tube as precision tube which applicated in boiler, superheater, heat exchanger tubes,if you need other precision tubes for engineering purposes, read boiler tube and pipe product or send quotation now.

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):

KS/JIS Symbol KS/JIS Numbe Remarks DIN Type DIN
Remarks B.S
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
Grade A K01200 STBH 340/ STB 35 D3563 / G3461 St 37.8 17177 1.0315 (7) 3059 ERW 320               (3)     (3)
Grade c K03503 SHBH 410 / STB 42 D3563 / G3461 St 42.8 17177 1.0498 (7)                   (3)     (3)

JIS Number and Corrensponding Foreign Standards::

Standard Number Grade Tupe Standard
Grade Tupe Standard
Grade Tupe Standard
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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