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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- Inquire about price/MOQ

Q:What is the difference between 40Cr round steel and 40Cr forging parts?
Generally speaking the 40Cr steel is a kind of hot rolled steel (rarely cold). The need for heating the material before hot rolling process is or rolled, usually heated to above the recrystallization temperature, then condensation formed after the bar, of course I say is very simple, there are many steps.
Q:Requirements for groove welding of grade 22mm round steel and manual arc welding
If not on the lathe, in the groove on the round bar with gouging or cutting gun, docking form X type double sided bilateral docking, blunt edge 2mm root gap 2mm welding, welding side sincere one or two seam, flip the workpiece on the other side of a full weld groove, flip weld residual,
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:Will the theoretical weight of thread steel and round steel be the same?
The theoretical weight of threaded steel and round steel is the same. The middle part of the steel bar size ratio is small, the design time actually unit weight are the same, just screw steel crescent and transverse ribs prominent, resulting in heavy steel should be better than the illusion of formula is 0.00617 multiplied by the square of the diameter / m.
Q:The difference between galvanized round bar and galvanized flat steel?
Galvanized round bar and galvanized flat steel are of different shapes and different uses.
Q:Are the bolts for the round bar or round steel?
If in some large-scale concrete component under the condition of some units to prevent run mode is used, the bar, the bar is the best quality, and the tensile strength is great, because the price advantage is not, it is generally not recommended to use the bar as a pull screw.
Q:Round bar, flat steel, not reinforced?
All belong to section steel. Round steel can be used as reinforcing steel, which is often referred to as light round bar and primary steel. Flat steel is finished steel, not steel.
Q:What kind of nuts do you need for round 20 rounds?
Common materials for 301, 304, 303, 316, 316L, 304L, 321, 2520, 201, 202 and so on. Specifications are expressed in diameter, such as "50", which means a round bar of 50 millimeters in diameter. Round bar is divided into three parts: hot rolling, forging and cold drawing. Standard Specification for hot rolled round steel is 5.5-250 mm.Stainless steel round bar has a broad application prospect, and is widely used in hardware, kitchenware, shipbuilding, petrochemical, machinery, medicine, food, electricity, energy, aerospace and other architectural decoration. Equipment, chemicals, dyes, paper making, oxalic acid, fertilizer, etc.; equipment for photography, food industry, coastal areas, ropes, CD poles, bolts, nuts, etc..
Q:Difference between round bar and threaded steel in use.
The rebar is much higher than the ordinary, and the low carbon steel rounds are much higher. The heat treated steel is much stronger than the low carbon round steel, nearly twice or even higher.
Q:Is steel bar round wire? What's the difference? What are the main applications of wire rod?
45# round steel refers to the cross section of round solid steel. The specifications are expressed in millimeters of diameter, such as "50", which means a round bar of 50 millimeters in diameter.45# round bars are divided into three kinds: hot rolling, forging and cold drawing. Standard Specification for hot rolled round steel is 5.5-250 mm. Of them: 5.5-25 mm small round bars are mostly supplied by straight strips. They are used as reinforcing bars, bolts and various mechanical parts. They are more than 25 millimeters of round steel. They are mainly used in the manufacture of mechanical parts or seamless steel tube billets.

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