ASTM A178 / A178M – 02(2007) Standard Specification for Electric-Resistance-Welded Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Tubes
Hengtong Company 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.
ASTM A178 Grade B Carbon Steel Pipes
- Size Range : 4″ to 26″
- Schedules : 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
- Grades : ASTM A178 Grade A, ASTM A178 Grade B, ASTM A178 Grade C, ASTM A178 Grade D, ASTM A178 Grade E
- Applications: Oil Refineries, Petrochemicals, Power Generation (Nuclear/Thermal), Steel, Sugar, Boiler Equipments, Pressure Vessels and General Engineering Purposes
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.
Hengtong Company 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):
| 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 |
||||||||||||||||||||
| 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::
| 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 | ||||||||||||||
