ASTM A519 1020 Cold Rolled Steel Tube , Carbon Steel Seamless Pipes
For Mechanical Purpose
Seamless steel pipe
ASTM, GB, API,JIS,E
ASTM, DIN, GB, JIS, ASTM A106-2006, ASTM A53-2007, ASTM A335-2006,
ASTM A53M-2007, API, API 5CT, API 5L, DIN 17175, GB 5310-1995,
GB/T 8163-1999, GB/T 8162-1999, GB 9948-2006, Gb/t8163, GB/T5310,
JIS G3463-2006, JIS G3454-2007
According to requirement
1 - 20 mm
Hot rolled cold rolled/drawn
Tianjin port or Designated port
Bundle, bulk in container or as your demand.
Carbon steel seamless steel pipe is kind of long steel. Steel pipe
has hollow section, which is widely used as pipeline for conveying
fluids, such as oil, natural gas, gas, water and some solid
materials. Compared with solid steel such as round steel, steel
pipe is lighter in weight under the same bending and torsional
strength. It is an economic section steel. It is widely used in
manufacturing structural and mechanical parts, such as oil drill
pipe, automobile transmission shaft, bicycle frame and steel
scaffolding used in construction.
ASTM A519 GR. 1020 Cold Rolled Seamless Steel Tube is low
hardenability low tensile Carbon Steel Tube, which is one of the
most commonly used steel pipes for general purpose applications
It offers excellent mechanical and chemical properties like high
strength, ductility, weldability, and high corrosion resistance. It
is normally used in turned and polished or cold drawn condition.
Due to its low carbon content, it is resistant to induction
hardening or flame hardening. It will not respond to nitriding due
to lack of alloying elements. However, carburization is possible in
order to obtain case hardness more than Rc65 for smaller sections
that reduce with an increase in section size.
AISI 1020 steel can be largely utilized in all industrial sectors
in order to enhance weldability or machinability properties. It is
used in a variety of applications due to its cold drew or turned
and polished finish property.
If you are interested in our products, please contact us now for
more detailed information. We assure best in class products with
excellent services to our customers.
AISI 1020 steel is used in case hardened condition. The
applications of AISI 1020 steel are:
-It is used for simple structural application such as cold headed
-AISI 1020 steel also finds use in the following components:
- general engineering parts and components
- machinery parts
- gudgon pins
- light duty gears
- worm gears and
ASTM A519,DIN2391, BS 6323 etc
15 Mtr max Cut to Length available
Plain / Beveled / Vanished / Plastic Caps
Pickled,Passivation,Inside & Outside Mechanical Polishing, BA,
Solution Annealing and water rapid quenched, Bright Annealing
|Delivery Conditions||+C (BK) Hard. No final treatment after final cold rolling.|
+LC (BKW) Soft. Final heat treatment is followed by a suitable
drawing pass (limited reduction of area).
+SR (BKS) Stress Relieved. After final cold rolling, the tubes are
stress relieved in a controlled atmosphere.
+A (GBK) Annealed. After final cold rolling, the tubes are annealed
in a controlled atmosphere.
+N (NBK) Normalized. After final cold rolling, the tubes are
normalized in a controlled atmosphere.
Eddy Current Test, Hydrostatic Test, UT,Penetrant Test,Air
underwater pressure Test, PMI Test, Spectro Test, Intergranular
Corrosion Test, Sharpy Impact Test,Hardness Test, Tension Test
(Elongation,Yield Strength, Tensile Strength), Flarring Test etc.
High Precision Cold Rolled Seamless Steel Tube is used in
automotive industry, and in the occasion where the high accuracy,
brightness, cleanness of the tube are required.
In bundles, plywood cases, wooden cases with water-proof package,
FOB, CIF, CFR
Domestic Market, North America, Western Europe, South America,
Eastern Asia etc.
Relavent Standard & Grades Equivalency
-ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing
-EN 10297-1 Seamless Circular Steel Tubes for Mechanical and
General Engineering Purpose
-DIN1629 Seamless Circular Tubes of Non-alloy Steels with Special
-JIS G3444 Carbon Steel Tubes for General Structural Purposes
-JIS G3445 Carbon Steel Tubes for Machine Structural Purposes
TOLERANCE FOR SEAMLESS TUBING
|I.D tolerance (mm)||O.D tolerance (mm)||Straightness (mm)|
Chemical Requirements, Composition, %
|Standard||Steel Grade||Yield strength MPa (>=)||Tensile strength MPa (>=)|
|Reduction of area % (>=)||Hardness Brinell|
AISI 1020 can be welded by performing the most common welding
processes. In the cold drawn or turned and polished condition, it
has better weldability. It has been suggested that the welding
process should not be performed in heat treated or carburized
AISI 1020 steel is heated at 870°C - 910°C followed by holding for
certain time until the temperature remains constant all over the
section. It is then cooled in a furnace.
AISI 1020 is heated to between 880°C - 920°C in a suitable
carburizing atmosphere followed by holding for sufficient amount of
time to produce the needed carbon content and case depth. After
this, refining/hardening and tempering processes are carried out to
optimize the core and case properties.
AISI 1020 steel is slowly cooled and re-heated at 870°C - 900°C
followed by holding until the temperature remains constant all over
the section and quenching in water, oil or brine.
After performing the core refining process, it is re-heated to
760°C - 780°C followed by holding until the temperature is
consistent all over the section. It is then quenched in water.
AISI 1020 steel is re-heated at 150°C - 200°C followed by holding
for certain time until the temperature remains constant throughout
the section. It is soaked for 1 hour per 25 mm of section and then
cooled under normal atmosphere. By performing the tempering
process, the toughness of the case will be improved and grinding
cracks will be reduced.
AISI 1020 steel is heated at 890°C - 940°C followed by holding
until the temperature remains constant throughout the section. It
is soaked for 10 - 15 minutes and then cooled in still air.
AISI 1020 steel is heated to 650°C - 700°C followed by holding
until the temperature remains constant all over the section and
soaking for 1 hour per 25 mm of section. It is then cooled in still
What we can offer?
-We offer a wide range of steel products in a wide variety of
dimensions and executions, according to the common international
specifications or customize.
-Machining and heat treatment are available.
-Also, we advise you in choosing the right materials.
Below inspection will be done in the production.
(1) ray detection---RT;
(2) ultrasonic testing---UT;
(3) Magnetic Particle Testing-MT;
(4) penetration testing-PT;
(5) eddy current flaw detection-ET
In standard export packing and seaworthy material with hexagon shape bundle, covered with tarpaulin, in containers or in bulk, or
Payment & Delivery
1. Both T/T and L/C will be acceptable
2. Trade Terms: FOB, CIF, CFR
3. The delivery will be in 10-15 days if have stock; For customized
items, the delivery will be negotiated by both parties
4. Shipping by sea freight from Shanghai Port (PRC) for Bulk orders, by airfreight or express
Shanghai Unite Steel Trading Co., Ltd
We are committed to integrate engineering steel resources in china
and serve the global engineering steel market. Our company has more
than 15 years of experience in steel researching, production,
managing and sales. And our team mostly are based on and worked in
national famous steel enterprise.
In the aspect of resources and information, we have established
cooperative and stronger relationship with nearly hundred
enterprises, either state-owned or private owned in china.
What’s more, we have built long, deep and close business
relationship with dozens of steel company, Sharing and holding
equities with several steel enterprises. Because of the close
cooperation with steel companies and our pioneering spirit, which
can ensure us stay at the top competition, and ensure our customers
get what they really want!
Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and
trading company. We specialized in special steel which include
alloy structural steel and carbon steel and stainless steel, etc.
All material are with high quality and competitive price.
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party,
such as TUV, CE, if you need. Secondly, we have a complete set of
inspection system and every process is checked by QC. Quality is
the lifeline of enterprise survival.
Q: Delivery time?
A: We have ready stock for most of material grades in our
warehouse. If the material doesn't have stock, the delivery lead
time is about 5-30 days after receiving your prepayment or firm
Q: What is the payment term?
A: T/T or L/C.
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you
come to China and arrange our driver to our airport to pick you up
when you come.