Stress Relieved Cold Drawn Seamless Steel Tube With Mechanical Property
Brand Name:TORICH
Certification:ISO
Model Number:ASTM A311
Minimum Order Quantity:0.5 Ton/Tons
Delivery Time:30-45 Days
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
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Location:
Ningbo Zhejiang China
Address:
Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
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Product Details
ASTM A311 Cold-drawn Mechanical Property Stress-relieved Carbon Steel Bars
This specification covers two classes. nine grades. andfour
conditions of stress-relieved cold-drawn carbon steel barsproduced
to mech anical property requirements. One class.B. iscold drawn
with higher than normal (heavy) drafts to providehigher strength
levels, and four grades provide improvedmachinability.
Materials and Manufacture
1.Melting Practice -The steel shall be made by one ormore of the following primary processes: open-hearth, basic-oxygen. or electric-furnace. The primary melting may incor-porate separate deg assing or re fining and may be followed bysecondary melting using electroslag remelting or vacuum arcremelting. Where secondary melting is employed, the heatshall be defined as all of the ingots remelted from a singleprimary heat.
2.Cold Working:
(1)Class A bars shall be cold drawn using normal draftingpractices.
(2)Class B bars shall be cold drawn using heavy (higherthan normal) drafting practices.
3Thermal Treatment After cold drawing. the bars shallbe stress relieved at a temperature of not less than 550F[288C] to meet the mechanical requirements specified inTable 2.
4.Condition -The bars shall be furnished in the followingcold finish conditions, as specified:
(1)Cold drawn. stress relieved;
(2)Cold drawn. stress relieved, turned. and polished;
(3)Cold drawn, stress re lieved, turned, ground. and pol-ished; and
(4)Cold drawn, stress relieved, ground, and polished.
Referenced Documents
A 29/A 29M Specification for Steel Bars. Carbon and Alloy.
Hot- Wrought and Cold-Finished, General Requirementsfor
A 108 Specification for Steel Bar, Carbon and Alloy. Cold-
Finished
A 370 Test Methods and Definitions for Mechanical Testingof Steel Products
E 527 Practice for Numbering Metals and Alloys (UNS)
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!
Stress Relieved Cold Drawn Seamless Steel Tube With Mechanical Property
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