Hot Rolled Alloy Carbon Structural Steel Bars

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China main port
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Min Order Qty:
30 m.t.
Supply Capability:
10000 m.t./month

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Product Description:

Hot Rolled Alloy Carbon Structural Steel Bars

                       

Products Details 


Product Name 

 Alloy Steel 1.2379

Standard

 ASTM A689, JIS G4801, DIN 17221, GB/T 18254, ASTM A295, JIS G4805, etc.

Spring steel

65Mn, 1566, 60Si2Mn, 9260, etc.

Bearing steel

GCr15, SAE52100, GCr15SiMn, 100CrMnSi6-4, SJU2, etc.

Cold heading steel

ML25, ML35, etc.

Alloy structural steel

40CrNiMo, SAE4330, 42CrMo, 15Cr2Ni2, 40CrNi2Mo, 35CrMoV,

12Cr1MoV, ASTM4130, SCM420, 40CrV, etc.

Military steel

20Cr2Ni4A, 18Cr2Ni4WA, 23CrNiMo7-4-7, etc.

Heat resistant steel

5CrNiMoV, 4Cr10Si2Mo, etc.

Mold and tool steel

SKD62, Cr12, 31CrMoV9, H11, 4Cr5MoSiV1, SKD61, DIN1.2344, H13,

35CrMoV, Cr12Mo1V1, SKD11, X153CrMoV12, D2, O1, DIN1.2510,

P20, DIN1.2311, 3Cr2Mo, 9CrWMn, 4Cr13, AISI420, DIN1.2083,

Cr12MoV, DIN1.2601, P20+Ni, Cr8Mo2SiV, DC53, DIN1.2738, etc.

Gear steel

ASTM8620, SAE4340, SNCM430, 40CrNiMo, etc.

Size

Round bar: 15-1200mm

Square bar: 80-800mm

Length

 2-12m, as customers' requirement.

Melting process

EAF+LF+VD

Ultrasonic testing

SEP1921-84 C/C, D/D, E/E

Surface treatment

Black, grinded, peeled, polished are available

Delivery condition

Annealing, tempering, quenching + tempering

Technique

 hot rolled, cold drawn, forged are available

Package

 Standard seaworthy packing, as customers’ requirement

Delivery Time

 30 days after receipt of the deposit, negotiable.

Available Sizes

 

Grade

Size (mm)

Round rolled steel

(Dia.)

Flat rolled steel

Round forged steel

(Dia.)

Square forged steel

Bright bar

(Dia.)

High-quality carbon structural steel

16-320

5-38

44-150

120-900

100-750

12-150

Alloy structural steel

16-320

5-38

44-150

120-900

100-750

12-150

Carbon tool steel

16-320

5-38

44-150

120-350

100-310

12-150

Alloy tool steel

30-90


100-900

100-750

12-150

High speed tool steel



80-120

80-110

12-150

Bearing steel

16-320

5-38

44-150

120-300

100-600

12-150

Spring steel

14-180

5-38

44-150

120-300

100-260

12-150

Stainless steel

16-250


120-750

120-600

12-150

High temperature alloy steel



55-200

80-200

12-150

Free-cutting steel

14-250


120-400


12-150

Gear steel

16-320

5-38

44-150

120-900


15-150



Products Show 

 


Product Overviews 

Product NameTypical GradesDiameter(mm)Standard adopted
Carbon Steel20 (1020/S20C/C22)Ø16-Ø300

 

 

GB/SAE/JIS/DIN

 

40 (1040/S40C/C40)
45 (1045/S45C/C45)
Bearing SteelGCr9 (51100/SUJ1)Ø12-Ø250
GCr15 (52100/SUJ2/100Gr6)
GCr9SiMn (A485-Gr.1/SUJ3)

 

Cr-Mo Steel

20Cr (5120/SCr420H/20Cr4)Ø12-Ø250
40Cr (5140/SCr440/41Cr4)
42CrMo(4140/SCM440/42CrMo4)
Gear Steel20CrNiMoØ16-Ø600
20CrMn(5115/SMnC420/20MnCr5)
20CrNiMo(8620/SNCM220/20CrMiMo2)


Application 

Carbon Steel

 Mold bottom,   Plastic mold,   Construction machinery parts

 Automobile parts,   Security grills,   Screens,  Construction

 Bearing Steel  Aerospace,   Navigation,   Nuclear energy,   Chemical industry

 Electronic information,   Petrochemical,   Instrument and meter

 Transportation 

 Cr-Mo Steel  Mechanism & Fasteners gear,    Stressed components for vehicles 

 Engines and machines,    Parts of larger cross-section

 

Gear Steel

All kinds of gears,   Statically and dynamically stressed component for vehicles

Engines and machine,   Larger cross-section parts,   Crankshafts 


Work Shop 

 Hot Rolled Alloy Carbon Structural Steel Bars


Company Information 

CNBM International Corporation is the most important trading platform of CNBM group.

Whith its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high qulity series of refractories as well as technical consultancies and logistics solutions.

 


FAQ

1, Your advantages?

     professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale

2, Test & Certificate?

      SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem

3,  Factory or Trading Company?

      CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.

4, Payment Terms?

    30% TT as deposit and 70% before delivery.

    Irrevocable L/C at sight.

5, Trading Terms?

    EXW, FOB, CIF, FFR, CNF

6, After-sale Service?

     CNBM provides the services and support you need for every step of our cooperation. We're the business partner you can trust.

     For any problem, please kindly contact us at any your convenient time.

We'll reply you in our first priority within 24 hours.


Packaging & Delivery

1, Packaging: seaworthy package or as required 

2, Delivery: 35-45 days or based on quantity


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Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:What is the difference between the heat treatment of cold drawn round steel and the heat treatment of wrought round steel?
Annealing: the annealing of hypoeutectoid steel workpiece heated to AC3 above 20 - 40 degrees heat after a period of time, furnace cooling (or buried in the sand or lime cooling) to 500 degrees Celsius in air cooling heat treatment process.
Q:What is hot rolling? What is called forging?
Forging is a method of processing wool embryos by plastic deformation. They are also classified as cold forging and hot forging
Q:How can I connect channel steel and round steel?
Can first welding a large circular steel plate and steel bar etc. in the channel to the end faces of the circular plate thickness should be more than 10mm, then the circular plate side angle steel and round steel bar to coincide welding, chamfering, need full welding between the two.
Q:What is the difference between gcr12 round bar and Cr12 round bar? Can it be used in general?
GCr12 is the bearing steel, belongs to the high carbon chromium bearing steel, the chromium Cr content is about 1.2%, other alloy element's indication method and the alloy structural steel alloy content is same. The utility model is mainly used as a ferrule and a rolling body of a rolling bearing under general service conditions.
Q:How do you know the diameter and weight of a round bar?
The weight / weight / length is /3.14, and then the more is the radius. Then *2 is the diameter.Formula: pi * (D/2) - *L* weight = weight
Q:1, three, two, steel, wire rod, round steel what is the difference?
Steel is commonly known as hot rolled ribbed bar, belonging to the small steel steel, mainly used for steel reinforced concrete structure frame. In use, some mechanical strength, bending deformation property and welding performance are required. The raw steel billet for the production of threaded steel is carbon structural steel or low alloy structural steel which is treated by calm melting, and the finished steel bar is delivered in hot rolling forming, normalizing or hot rolling state.
Q:Excuse me, the difference between round steel, screw steel, steel, plate material, steel wire, hope professional answer?
Anything you say can be called steel bar, except steel wire. Round and round is a name, and wire coil, general line.
Q:What kind of steel bars are used in general civil buildings?
Steel is the HRB335, the diameter of 12 to 22, 25, 28, even 32, and then rough generally appear in the mass concrete construction, not commonly used, generally below 25 is commonly used in masonry structure in rural low level below 16 is most commonly used. Used as beams, columns, main bars and stand bars, etc.
Q:Can steel bars be replaced by large screws in the concrete floor?
Tensile strength, extensibility, yield point! The same thread can be used instead!Of course, the number of roots must also be the same ~ only specifications vary!
Q:Is there any technique for welding round steel?
Welding skills:2.1, to determine the best welding position, the group of good welding flat, easy to rotate welding, the weld pool is always in flat position, note the rod angle at 70 degrees.2.2, the welding workpiece in continuous continuous rotation, to control the size of the weld pool at the end of each lap weld slag, cleaned, and then welding together, the thickness of each layer is about 2mm, until the full fill slope has so far.

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