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Low Tensile Mild Carbon Steel Bar 130 - 1600mm AISI 1020 SGS / BV Certification

Categories Forged Steel Bar
Brand Name: UST
Model Number: ASTM 1020
Certification: ISO 9001:2008
Place of Origin: MAINLAND CHINA
MOQ: 3 Metric tons
Price: USD 700-1500 / Metric Ton
Payment Terms: L/C, T/T, D/A, D/P
Supply Ability: 1000 Metric Tons per Month
Delivery Time: 15-35 days
Packaging Details: In standard export packing and seaworthy material with rectangular shape bundle, covered with tarpaulin, in ontainers or in bulk, or upon request
Matrial: Alloy Steel
Standard: GB, ASTM, DIN,JIS
Grade: 1020
Diameter: 130-1600mm
Length: Below 16 meters
Shape: Round bar
Techniques: Cold drawn; Hot rolled; Cold rolled; Forged
Surface: Black, Bright, Polished, Peeled, or upon request
Ultrasonic Test: 100% UT Passed
Processing: Annealed or Quenched and tempered provided
End: Beveled, plain end as required
Quality Inspection: SGS, BV etc.
Service: Cutting service and 3rd party inspection is provided
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    Low Tensile Mild Carbon Steel Bar 130 - 1600mm AISI 1020 SGS / BV Certification

    AISI 1020 Mild Carbon Low Tensile Steel Bar Forging 130-1600mm


    AISI 1020 is a low hardenability and low tensile carbon steel with Brinell hardness of 119 – 235 and tensile strength of 410-790 MPa. It has high machinability, high strength, high ductility and good weldability. 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. Due to lack of alloying elements, it will not respond to nitriding. However, carburization is possible in order to obtain case hardness more than Rc65 for smaller sections that reduces with an increase in section size. Core strength will remain as it has been supplied for all the sections. Alternatively, carbon nitriding can be performed, offering certain benefits over standard carburizing.

    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 drawn or turned and polished finish property.

    Applications of 1020 Mild Steel

    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 bolts.
    - AISI 1020 steel also finds use in the following components:

    • axles
    • general engineering parts and components
    • machinery parts
    • shafts
    • camshafts
    • gudgon pins
    • ratchets
    • light duty gears
    • worm gears and
    • spindles


    -Dimension: Diameter 4-1600 mm, any length below 16 meters

    -Delivery Conditions:

    Cold drawn: 4-100 mm

    Peeled: 30-160 mm

    Grinded: 4- 600 mm

    Turned: 130-1200 mm

    Hot rolled: 12-320 mm

    Hot forged: 130-1600 mm

    - EAF+(ESR) or EAF+LF+VD+(ESR)

    - HOT rolled; Cold rolled; Forged; Cold Drawn

    - Heat Treatment: Untreated, Annealing, N+T, Q+T

    - Smelting: EAF+LF+VD (+ESR)

    - Surface Finish: Black, Rough Machined, Peeled, Turned or upon request

    - UT 100% passed

    - Cutting service provided

    - Third Party inspection is acceptable (SGS, BV etc.)

    AISI 1020 Grades Equivalency

    ASTM A29/MGermany
    JIS G4051China
    1020C22 / CK22S20C20C20E4

    Chemical Requirements, Composition, %

    Steel GradeCarbonManganesePhosphorusSulfurSilicon
    AISI 10200.17-0.230.30–0.600.040 max0.050 maxNo Requirement

    Mechanical Properties

    StandardSteel GradeYield strength MPa (>=)Tensile strength MPa (>=)

    Elongation %


    Hardness HB
    ASTM A29102035042015121

    Comparative Materials

    • AISI 1018 Steel: This type of steel shares much of its properties with 1020 steel such as ease of machining, weldability and strength. It is the most common cold rolled steel available in the market
    • AISI 1006 Mild Steel: This type of mild steels which have low hardness and are used in drawing. They are also very machinable and can be welded easily although its hardness is much lower than AISI 1020

    Quality Assurance

    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

    Fabrication and Heat Treatment


    In the cold drawn or turned and polished condition, AISI 1020 steel has high machinability. As per recommendations of machine manufacturers, AISI 1020 steel can be used for drilling, turning, milling and tapping operations using suitable feeds, tool type and speeds.

    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 condition.

    Heat Treatment

    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.

    Core Refining
    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.

    Case Hardening
    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.

    Stress Relieving
    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 air.

    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.

    Shape Available

    • Solid round bar
    • Flat bar
    • Square bar
    • Hexagon bar
    • Block
    • Plate
    • Sheet
    • Wire rod
    • Strip

    Our Advantages

    • High mechanical property and quenching, enable the surface share equal hardness after deal with it
    • Good polishing and low roughness
    • Making the heat-treatment to harden condition before using it
    • Competitive price
    • Fast production lead-time
    • All the material are inspected with 3 times to meet the highly standards
    • Pure steel quality & stable quality to be guarantee



    Available Size:
    -Round: Dia. 4 -1600 mm
    -Flat: T. 10-120 mm x W. 60-810 mm
    -Block: T. 80-1200 mm x W. 100-1600 mm


    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 for samples


    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 order.

    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.

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