Oiled Welded Steel Tube Carbon Steel / Carbon Manganese Steel Astm A178

Product Description

ASTM A178 Electric-Resistance-Welded Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Steel Tube

Application:boiler tubes,boiler flues,superheater flues and safe ends.

Size:L--4~12m

OD--12.7-127mm

WT--0.9-9.1mm

Grade:Type A,C and D

Manufacture :electric-resistance welding.

Heat Treatment:After welding,all tubes shall be heat treated at a temperature of 1650°F[900℃]or higher and followed by cooling in air or in the cooling chamber of a controlled-atmosphere furnace.Cold-drawn tubes shall be heat treated after the final cold-draw pass at a temperature of 1200°F[650℃] or higher.

TABLE 1 Allowable deviation of outer diameter and wall thickness

Unit: millimeter

TABLE 2 Mechanical Property

Surface Quality:The internal and external surfaces of the steel tube are not allowed to have cracks, scabs, folds, delaminations, laps, and burns. Allows for scribes, scratches, misalignment of welds, burns, oxide scales, and external burr removal traces that are not more than a negative wall thickness deviation

Inspection items:

chemical composition

Tensile test

Ultrasonic examination

Eddy current flaw detection

Bending test

Flattening test

What is your Guarantee?
1.SO9001:2008 and TS16949 certification, SGS, BV, TUV or other third party inspection is available.
2.High quality with competitive price.
3.Advanced technology, experienced engineer, ISO quality system for quality assurance and traceability.

Do you have agent or distributor in our country?
1.We are recruiting area agent and distributor all over the world, welcome to send us your mail or call us for detail discussion.

How is your production capability?
1.2000 tons monthly production capacity, 5000 tons monthly trading capability
2.Prompt and Timely shipment

How to get the sample?
1.You are requested to pay for sample charges and courier charges from China to your country; and the free sample is according the product like size, steel grade and quantity, please consult our sales for details
2.Sample charges will be refunded when order is placed.

What is your Payment Term?
1.T/T: 30% deposit in advance, the balance 70% paid before shipment
2.30% down payment, the balance 70% paid against L/C at sight
3.Upon negotiation

Who are your customers?
1.Stockists, Distributors,Wholesalors,Agents, Traders, End Users, etc

How long will you react on our requirement?
1.Your requirement would be treated within 24 hours on weekdays. Quotations would be sent upon technical details confirmed by customer!

Any more questions about your doubts, please feel free to send us your emails or call!