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Categories | Welded Steel Pipe |
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Brand Name: | GNEE |
Model Number: | ASTM A178 |
Certification: | SGS |
Place of Origin: | henan |
MOQ: | 30 Tons |
Price: | negotiable |
Payment Terms: | L/C, T/T |
Supply Ability: | 10000 Tons per Month |
Delivery Time: | 30 days |
Packaging Details: | seaworthy export packing with fumigated wooden pallets or steel pallets |
Standard: | ASTM |
Technique: | ERW |
Grade: | ASTM A178 |
Thickness: | 3mm -10mm 20 mm-60mm |
Length: | 10m-12m,12m or as customer's actual reques. |
Processing Service: | Cutting,Bending |
Company Info. |
Gnee Steel (tianjin) Co., Ltd. |
Verified Supplier |
View Contact Details |
Product List |
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.
Element | Grade A, | Grade C, | Grade D |
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 |
A178 Straight seam welded pipe
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)
ASTM A178 Class C and Class D ERW steel pipes not suitable for
forged welded safety ends shall be of size and thickness within the
standard range of 1⁄2 to 5 in. (12.7 to 127 mm) outside diameter
with a minimum wall thickness of 0.035 to 0.360 inches (0.9 to 9.1
mm). Other sizes of pipe are available provided they meet all other
requirements of the specification.
During the production process, D-grade steel should be killed and
the pipes should be made by resistance welding. After welding, all
tubing should be heat treated at 1650°F (900°C) or higher and then
cooled in air or in the cooling chamber of a controlled atmosphere
furnace. For cold drawn tubing, heat treatment should be performed
at 1200°F (650°C) or higher after the final cold drawing pass.
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