Super Heater ERW SA178 Grade A Grade C Carbon Boiler Steel Tube
1. Details:
| Standard | SA178 |
| OD | 12.7-127mm |
| WT | 0.9-9mm |
| Length | 4-12m, or according to customer required |
| Fixed length or random length |
| Material | Grade A, Grade C, Grade D, all belongs to carbon tube |
| Production method | ERW (Electric Resistance Welded) |
| Heat treatment | Annealed, normalized, stress relieved |
| Key words | ERW steel tube, steel pipes carbon, welded steel tube, boiler steel tubes, |
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
Heat treatment: After welding, all tubes shall be heat treated at a temperature of
900℃ or higher and followed by cooling in air or in the cooling
chamber of a controlled- atmoshpere furnace. Cold-drawn tubes shall
be heat treated after the final cold -draw pass at a temperature of
650℃ or higher.
Product marking: The manufacturer's name or symbol may be placed permanently on
each tube by rolling or light stamping before normalizing. If a
single stamp is placed on the tube by hand, this mark should be not
less than 8 in[200mm] from one end of the tube.
2. Showing:
QUALITY CONTROL:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring
Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield
Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking
RFQ:
What is your Guarantee?
1.SO9001:2008 and TS16949 certificate 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!
