The company is located at No. 1, Baihe Road, Hudai Town, Binhu District, Wuxi City. It is a professional manufacturer registered with the permission of relevant national departments. Its products are rich and diverse, covering a variety of high-quality steels such as cold-drawn round steel and cold-drawn round steel. Cold-drawn steel series products are widely used in many key industries, from high-strength fasteners for wind power anchor bolts to automotive parts, from medical components to logistics machinery and equipment, demonstrating its excellent quality and wide applicability.
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25 Mm Mild Steel Round Bright Bar
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High Carbon Chromium Steel Rod
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Cold Drawn Round Steel Bar C45
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1040 Cold Drawn Alloy Steel Bar
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Mild Steel Round Engineering Bars
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Mild Steel Bright Round Bars for Engineering
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Why Choose Us
High Quality
From cold-drawn bright round steel to cold-drawn silver-bright round steel, from cold-drawn square steel to cold-drawn hexagonal steel, the rich product variety meets the needs of different customers.
Advanced Equipment
Our company boasts a comprehensive range of equipment. From advanced production machinery like automated assembly lines to state - of - the - art inspection tools, we're well - equipped to meet diverse manufacturing demands.
Professional Team
Zhongao assembles a professional team. Comprising seasoned engineers, skilled technicians, and dedicated managers, we ensure efficient operations, quality products, and excellent customer service.
Custom Service
This service stands as one of the exclusive hallmarks of Zhongao. We craft tailor - made solutions, precisely addressing diverse client requirements with professionalism and creativity.

Cold drawn round steel in the process of application performance advantages, which fully reflects the actual ability of the product, in order to speed up the performance of the round steel product strength, the use of products and the strength of the drive, enhances the enterprise the development level of advantage, in all aspects in the process of raising the quality of the performance, has higher requirement for the product process, must complete product, the first thing to take advantage of advanced technology, increase productivity of product, and expand the various aspects using advantage level of play, with tangible product use effect, reflects the development of productivity.
Through the study of the improvement of technology and so on various aspects, cold drawn round steel performance is more reliable, make its in all aspects of the actual application, manifests the product's practical performance, with higher product strength fully enhance the capacity of the whole use of advantage, expand the round steel product market promotion, with the use of the comprehensive strength continuously accelerated product performance advantages, manifests the continuous increase of inner strength, which fully reflects the practical ability in the development of enterprises.
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AISI |
JIS |
DIN |
DIN |
ISO |
C |
Si |
Mn |
P |
S |
Pb |
Fe |
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1144 |
SUM43 |
44SMn28 |
1.0762 |
44SMn28 |
0.4-0.48 |
≤0.4 |
1.35-1.65 |
0.04 |
0.24-0.33 |
- |
97.45-98.01 |
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1213 |
SUM22 |
11SMn30 |
1.0715 |
11SMn28 |
≤0.13 |
0.15-0.35 |
0.7-1.00 |
0.07-0.12 |
0.24-0.33 |
- |
98.42-98.99 |
|
1215 |
SUM23 |
10S20 |
1.0721 |
9S20 |
≤0.09 |
≤0.05 |
0.75-1.05 |
0.04-0.09 |
0.26-0.35 |
- |
98.42-98.95 |
|
12L14 |
SUM24L |
11SMnPb30 |
1.0718 |
11SMnPb28 |
≤0.15 |
0.1-0.2 |
0.85-1.15 |
0.04-0.09 |
0.26-0.35 |
0.15-0.35 |
97.91-98.7 |
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Product Name |
Steel Bar |
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Material Type |
Stainless Steel/Carbon Steel/Alloy Steel/Nickel Alloy/Titanium Alloy |
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Standards |
AISI, ASTM, DIN, GB, JIS, SUS |
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Section Shape |
Round, Flat, Square, Hexagonal, Octagonal, etc. |
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Size Range |
1.Round bar |
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1)Hot rolled black bar: (5-400)x6000mm or according to your requirement. |
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2)Acid round bar: (5-400)x6000mm or according to your requirement. |
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3)Cold drawn bright bar: (1-20)x6000mm or according to your requirement. |
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4)Polishing round bar: (5-400)x6000mm or according to your requests. |
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2. Flat bar |
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1)Hot rolled flat bar: (3-30)*(10-200mm)*6000mm or according to your requests. |
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2)Cold drawn flat bar: (3-30)*(10-200mm)*6000mm or according to your requests. |
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3.Hexagon bar |
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1)Hot rolled hexagon bar: (5-100)x6000mm or according to your requests. |
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2) Acid hexagon bar: (5-100)x6000mm or according to your requests. |
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3)Cold drawn hexagon bar: (1-20)x6000mm or according to your requests t. |
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4)Polishing hexagon bar: (5-100)x6000mm or according to your requests. |
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4. Square bar |
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1)Hot rolled black bar: (5*5-400*400)x6000mm or according to your requests. |
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2)Acid square bar: (5*5-400*400)x6000mm or according to your requests. |
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3)Cold drawn square bar: (1*1-20*20)x6000mm or according to your requests. |
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4)Polishing square bar: (5*5-400*400)x6000mm or according to your requests |
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Technique |
Hot Rolled/Cold Rolled/Cold Drawn |
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Surface |
Black, Bright, Polished, Hair Line, No.1 ,sand blast etc. |
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Processing |
Bending, Welding, Decoiling, Punching, Cutting |
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Application |
Construction field, ships building industry, petroleum & chemical industries, military and electricity industries, food processing and medical industry, boiler heat exchange,machinery and hardware fields |
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Market |
Europe,South America, Africa ,Oceania ,such as :Chile,Spain,USA,Germany, |
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India,Dubai,Iraq,Vietnam,Ireland,Korea,Singapore,and so on. |
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Sample |
Free provided, trial order can be acceptable |
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MOQ |
1 Ton |
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Price Term |
EX-Work, FOB, CFR, CIF,CNF |
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Payment Term |
30%TT for deposit, 70% balance before shipment or LC at sight |
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Delivery time |
7-30days, according to the quantity |
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Productivity |
4500 tons/month |
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Packing |
1. Bundle packing |
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Package |
Standard seaworthy packing(plastic&wooden) or according to the customer's requests |
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The inner size of container is below: |
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20ft GP: 5.9m(length) x 2.13m(width) x 2.18m(high)about 24-26CBM |
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40ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high) about 54CBM |
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40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high) about 68CBM |
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Inspection |
ISO,BV,SGS,MTC |
Main Material
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COLD WORK TOOL STEEL |
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Grade |
AISI /ASTM |
DIN (W.Nr) |
JIS |
EN/ BS |
GB |
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DC53 |
Higher than D2 |
SKD11 |
XW-5 |
Cr8Mo2Vsi |
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D2 |
D2 |
1.2379 |
SKD11 |
BD2 |
CR12MO1V1 |
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Cr12MoV |
CR12MOV |
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D3 |
D3 |
1.2080 |
SKD1 |
BD3 |
CR12 |
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O1 |
O1 |
1.2510 |
SKS3 |
9CRWMN |
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HMD5 |
HMD5 |
7CrSiMnMoV |
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5CrNiMo |
L6 |
55NiCrMoV6 |
SKT4 |
5CrNiMo |
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52100 |
52100 |
1.3505 |
EN31 |
GCR15 |
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HOT WORK TOOL STEEL |
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H13 |
H13 |
1.2344/1.2342 |
SKD61/DAC |
8407 |
4CR5MOSIV1 |
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FDAC |
1.2347 |
FDAC |
FDAC |
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H11 |
H11 |
1.2343 |
SKD6 |
H11 |
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3Cr2W8V |
H21 |
1.2581/ X30WCrV93 |
SKD5 |
BH21 |
3CR2W8V |
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PLASTIC MOULD STEEL |
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P20 |
P20 |
1.2311 |
HPM7/PX88 |
618 |
3CR2MO |
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718 |
P20+NI |
1.2738 |
PX4/PX5 |
718 |
3CR2NIMO |
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S136 |
420 |
1.2083 |
S-STAR |
S136 |
4CR13 |
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NAK80 |
P21 /P20+S |
1.2312 |
NAK80 |
15NI3MN |
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HIGH SPEED STEEL |
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M2 |
M2 |
SKH51 |
W6MO5CR4V2 |
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M42 |
M42 |
S2-10-1-8 |
SKH59 |
W2MO9CR4VCO8 |
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ALLOY STRUCTURE STEEL |
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Grade |
AISI /ASTM |
DIN (W.Nr) |
JIS |
EN/ BS |
GB |
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5120 |
5120 |
1.7027 /21Cr4 |
SCr420 |
20Cr |
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530M40 /5140 |
530M40 /5140 |
1.7035 /41Cr4 |
SCr440 |
40Cr |
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5145 |
5145 |
Scr445 |
45CR4 |
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4118 |
4118 |
1.7243 /18CrMo4 |
SCM418 / SCM420 |
20CrMo |
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4135 |
4130 |
1.7218 /25CrMo4 |
SCM430 |
708A25/ 708M25 |
30CrMo |
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4140 |
4140 |
1.7225 /42CrMo4 |
SCM440 |
EN19/ 709M40 |
42CrMo |
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4340 |
4340 |
1.6582/ 34CrNiMo6 |
SNCM 439/ SNCM8 |
EN24/ 817M40 |
40CrNi2Mo |
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8620 |
8620 |
1.6523/ 21NiCrMo2 |
SNCM220 |
805M20 |
20CrNiMo |
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CARBON STEEL |
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20 |
1020 |
C22. CK22 |
S20C |
EN3B /070M20 |
20 |
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35 |
1035 |
C35.CK35 |
S35C |
35 |
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45 |
1045 |
C45.CK45 |
S45C |
EN8D/C45E |
45 |
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50 |
1050 |
CK53 |
S50C |
EN9/070M55 |
50 |
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Q355 |
S355J /ST52 |
EN14 |
Q355 |
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30Mn |
1030.1033 |
S30C |
30Mn |
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30Mn2 |
1330 |
30Mn5 |
SMn433h |
30Mn2 |
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STAINLESS STEEL |
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Steel grades: 304, 304L, 316, 316L, 321, 410 430, 431, 2205, 2304, 2507. F53, F55 |
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●Customers can choose any length or other requirements they want
●Transport services, can be delivered directly to your designated place
●Ordering or purchasing all kinds of steel products or special specifications
●The steel supplied by our company is enclosed with the original material book of the steel factory.

Delivery and Packing
1) Standard export package,suit for all kinds of transport,or as required.
2) All standard steel products are stocked, timely shipping as per clients request.
3) Lead time generally about 15-30 working days after receiving the deposit.
4) If special requirements ,may need longer delivery time.
FAQ
We're well-known as one of the leading cold drawn round steel manufacturers in China. Please feel free to buy high quality cold drawn round steel in stock here from our factory. For price consultation, contact us.
S45C Cold Drawn Bars, S45C Cold Drawn Steel Round Bar, 1018 Cold Rolled Steel Round Bar











