ASTM A178 electric resistance welded tube

ASTM A178 electric resistance welded tube

ASTM A178 is a standard specification that covers minimum-wall-thickness, electric-resistance-welded tubes made of carbon steel and carbon-manganese steel intended for use as boiler tubes, boiler flues, superheater flues, and safe ends.

standard:ASTM

Surface :1. Galvanized 2. Black and Color Painting

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introduction

ASTM A178/A178M and ASME SA178/SA178M are standards for resistance welded carbon and carbon manganese steel boiler and superheater tubes. These standards specify the manufacturing requirements for pipes to ensure their suitability for a variety of industrial applications, particularly in high temperature and pressure environments.
ASTM A178 Welded Pipe is primarily intended for minimum wall thickness resistance welded pipe made from carbon steel and carbon manganese steel. ASTM A178 straight seam steel pipe is mainly used in key parts such as boiler tubes, boiler flues, superheater flues and safety ends. These pipes must meet certain size and thickness requirements to ensure they can withstand high temperatures and pressures and have sufficient strength and durability.

Data table

Chemical Compositions (%)

Element	Grade A,	Grade C,	Grade D
Element	Low-Carbon Steel	Medium-Carbon Steel	Carbon-Manganese Steel
Carbon	0.06-0.18	0.35max	0.27max
Manganese	0.27-0.63	0.08max	1.00-1.50
Phosphorus, max	0.035	0.035	0.03
Sulfur, max	0.035	0.035	0.015
Silicon	…	…	0.01 min

Outside Diameter and Wall thickness Tolerance:

Outside Diameter tolerance		Wall thickness tolerance
OD < 50	±0.05mm	S < 4mm	±12.5%
OD > 50	±1%	4–20mm	+15/-12.5%
		S≥20mm	±12.5%

Standard: ASTM A178, ASME SA178
Grade: Grade A, Grade C, Grade D
Technique: Electric-Resistance-Welded
Delivery Condition: Annealed, Normalized, Tempered, Heat Treatment, BK, BKS
Section Shape: Round
Surface Treatment: Varnish
Size: (mm)
OD: 12.7mm to 127mm
Wall thickness: 1.5mm to 6.0mm
Length: 6m-25m
Ends: Plain ends or bevel ends
Packaging:Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
Transportation:By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load)

company advantage

GNEE specializes in the production and processing of steel pipes, hot-rolled steel pipes, cold-rolled precision pipes, cold-drawn seamless pipes, special-shaped steel pipes, low-temperature steel pipes, oil pipeline pipes, square and rectangular pipes. The products comply with ASTM, DIN, API 5L, API 5CT, JIS, BS and other international standards.

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