Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar

Looking for a reliable Black Annealed Square Steel Supplier? Look no further! We are a factory offering high-quality carbon steel rods and bars, including C45, S45c, S235, 42CrMo, ASTM A283, SAE 1020, 4140, 4340, 8620, 8640, and 8720. Explore our range of round, square, and flat hot rolled steel products.
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PRODUCTS DETAILS

  • Overview
  • Product Description
  • Product Parameters
  • Detailed Photos
  • Factory Display
  • Company Profile
  • Packaging & Shipping
  • Our Advantages
  • FAQ
Overview

Basic Info.

Model NO.
Carbon Steel Bar
Model No.
42CrMo 35CrMo Q195 Q235 Ss400 A36 En8 Ck45
Grade
A36 ASTM/St12/St 37/Q195/235/345/3sp/5sp/Ss400
Delivery Condition
Hot Rolled/Cold-Drawn / Hot Forged
Application
Mold & Dies, Ship Plate, Boiler Plate, Container P
Test
SGS / Ut 100% / Element Testing
Spangle
Big, Small, Regular, Zero Spangle
Size Range
Thickness: 10~800mm Width: 100-2200
Transport Package
Export Standard Package
Specification
Material Q195/235/345/3sp/5sp/Ss400/45#
Trademark
HuaBei
Origin
Shandong, China
HS Code
7213100000
Production Capacity
300000ton/Year

Product Description

Product Description

A36 SAE 1010 1018 1020 1045 Ss400 S20c S45c C45 40cr En8 En19 4140 Cold Drawn Ms Carbon Alloy Steel Square Bar Steel Bar

Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar
Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar
product name  Carbon Steel Bar
Width(mm) 5mm*5mm-500*500mm
Length(mm) 600-12000mm
Technology hot rolled/cold rolled/cold drawn
Material ASTM A36, Grade 36, Grade 40 Grade 50, Grade 60,  Grade 80,etc
DIN  Ck10,Ck15,Ck22,Ck25,Ck30,Ck35,Ck40,Ck45,Ck50, 30Mn4,40Mn4,etc
BS 040A04,095M15,045M10,080A40,045M10,080M50,etc
GB Q195, Q215, Q235, Q255,  Q275, Q295, Q345, Q390, Q420, Q500, etc
Standard GB/T799,ASTM A29,A108,A321,A575,BS970,DIN1652,JIS G4051
Surface Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE
Certificates API5L ISO 9001:2008 TUV CE SGS BV etc
Packaging Loose package, Packaged in bundles(3Ton Max) , bundled pipes with two slings at the both end for easy loading and discharging, End with Plastic caps or as per requirement
Application 1. Fluid pipe
2. Power Plant 
3. Structure pipe
4. High and low pressure Boiler tube
5. Seamless pipe /tube for petroleum cracking 
6. Conduit pipe 
7. Scaffolding pipe pharmaceutical andship,building etc.
Tolerance ±1%
MOQ 1 ton
Supply Ability 5000 tons / month
Lead Time 7-15 working days after the receipt of 30% deposit
Payment Terms 30%T/T Advance + 70% Balance
Price Terms FOB, CFR, CIF, EXW
Packing Standard sea-worthy package or as required
 
Our main products steel grades.
 
COLD WORK TOOL STEEL
Grade AISI  /ASTM DIN (W.Nr) JIS EN/ BS GB
DC53 higher than D2   SKD11 XW-5 Cr8Mo2Vsi
D2 D2 1.2379 SKD11 BD2 CR12MO1V1
Cr12MoV         CR12MOV
D3 D3 1.2080 SKD1 BD3 CR12
O1 O1 1.2510 SKS3   9CRWMN
HMD5   HMD5     7CrSiMnMoV
5CrNiMo L6 55NiCrMoV6 SKT4   5CrNiMo
52100 52100 1.3505   EN31 GCR15
HOT WORK TOOL STEEL
H13 H13 1.2344/1.2342 SKD61/DAC 8407 4CR5MOSIV1
FDAC   1.2347 FDAC   FDAC
H11 H11 1.2343 SKD6   H11
3Cr2W8V H21 1.2581/ X30WCrV93 SKD5 BH21 3CR2W8V
PLASTIC MOULD STEEL
P20 P20 1.2311 HPM7/PX88 618 3CR2MO
718 P20+NI 1.2738 PX4/PX5 718 3CR2NIMO
S136 420 1.2083 S-STAR S136 4CR13
NAK80 P21 /P20+S 1.2312 NAK80   15NI3MN
HIGH SPEED STEEL
M2 M2   SKH51   W6MO5CR4V2
M42 M42 S2-10-1-8 SKH59   W2MO9CR4VCO8
           
ALLOY STRUCTURE STEEL 
Grade AISI  /ASTM DIN (W.Nr) JIS EN/ BS GB
5120 5120 1.7027 /21Cr4 SCr420   20Cr
530M40 /5140 530M40 /5140 1.7035 /41Cr4 SCr440   40Cr
5145 5145   Scr445   45CR4
4118 4118 1.7243 /18CrMo4 SCM418 / SCM420   20CrMo
4135 4130 1.7218 /25CrMo4 SCM430 708A25/ 708M25 30CrMo
4140 4140 1.7225 /42CrMo4 SCM440 EN19/ 709M40 42CrMo
4340 4340 1.6582/ 34CrNiMo6 SNCM 439/ SNCM8 EN24/ 817M40 40CrNi2Mo
8620 8620 1.6523/ 21NiCrMo2 SNCM220 805M20 20CrNiMo
CARBON STEEL 
20 1020 C22. CK22 S20C EN3B /070M20 20
35 1035 C35.CK35 S35C   35
45 1045 C45.CK45 S45C EN8D/C45E 45
50 1050 CK53 S50C EN9/070M55 50
Q355   S355J   /ST52   EN14 Q355
30Mn 1030.1033   S30C   30Mn
30Mn2 1330 30Mn5 SMn433h   30Mn2
STAINLESS STEEL 
steel grades: 304, 304L, 316, 316L, 321, 410 430, 431, 2205, 2304, 2507. F53, F55
Product Parameters
Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar
Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar

Chemical composition

C Si Mn P S Cr Mo
0.38-0.43% 0.10-0.35% 0.75-1.00% ≤0.035% ≤0.040% 0.80-1.10% 0.15-0.25%

Equivalent Steel Grade 
Din 1.7225
42CrMo4
JIS SCM440
GB 42CrMo
ASTM 4140

Mechanical Properties

Tensile
Strength
(MPA)
Yield Strength
(MPA)
Reduction
(%)
Elongation
(10%)
Impact Strength
(Aku2/J)
Hardness
(HB)
1080 930 12 45  63 Anneal≤217HB
Q+T 28-32HRC

Cold drawn steel types, shapes and sizes we can offer

besides the below shapes and sizes,we can also manufacture it based on customer's requests and customize different shapes and sizes.
Shapes Sizes
Processing
 
Steel Round Bar 5mm to 63.5mm Cold Drawn
Steel flat Bar 63.5mm-120mm smooth-turned and polished.
Cold drawn steel square bar 5*5mm to120*120mm Cold Drawn
Cold drawn steel hex bar 5mm to120mm Cold Drawn
Cold drawn steel hexagonal bar 5mm to 120mm
(side to side)
Cold Drawn
Straightness Max 1mm/m
Tolerance h9 h10 h11 or as required
Dimension
(mm)
  Tolerance deviation grade
  Grade h8 Grade h9 Grade h10 Grade h11
3.01-6.0 0-0.012 0-0.018 0-0.030 0-0.048 0-0.075
6.01-10.0 0-0.015 0-0.022 0-0.036 0-0.058 0-0.090
10.01-18.0 0-0.018 0-0.027 0-0.043 0-0.070 0-0.110
18.01-30.0 0-0.021 0-0.033 0-0.052 0-0.084 0-0.130
30.01-50.0 0-0.025 0-0.039 0-0.062 0-0.100 0-0.160
50.01-80.0 0-0.030 0-0.046 0-0.074 0-0.120 0-0.190
h7 :grinding product
h8 :high-precision cold drawn product
h9:precision cold drawn product
h10:standard cold drawn product
h11:special shaped cold drawn product

P roduct length(mm) & diameter
Product variety The length of finished product Length tolerance
Cold drawn product 1000-6000 0-+20
Grinding product 1000-4000 0-+20
S traightness tolerance(mm)
Product mode Straightness tolerance
Standard cold drawn 0.7/1000~0.5/1000
Precision and high precision 0.4/1000
Surface roughness Ra(um)
Product mode Grinding High precison 
cold drawn
Precision cold drawn Stardard cold drawn
Surface roughness Ra(um)
 
0.40 0.80 1.60 3.20
Type of steel GB ASTM(SAE) JIS
Carbon steel
Low alloy steel
Q195,Q215,
Q235,Q345
A285MGr.B
A570MGr.A
SS330
SS400,SS490...
Quality
carbon steel
10,20,35,40,60
20Mn,25Mn,
35Mn,40Mn
1010,1020,1035,
1045,1060,1022,
1026,1037,1039
S10C,S20C,
S35C,S45C...
Alloy
structure steel
20Mn2,40Mn2,20Cr,40Cr,
20CrMo,35CrMo,42CrMo,
20CrMnTi,20Cr2Ni4,
40CrNiMo
1320,1345,5120,
5140,4118,4135,
4140,3316,4340
SMn420,SMn438,
SCr420,SCr440
SCM430,SCM435
SCM440,SCN815
SNCM439
Cold
heading steel
ML10,ML20,ML30,
ML35,ML35CrMo,
ML42CrMo,ML15MnB
1012,1020,1030
1034,4135,4140,
1518
SWRCH10R
SWRCH20K
SWARCH35K
SNB7
Spring steel 65Mn,60Si2Mn,50CrVA 1066,6150 SCP6,SCP10
Bearing steel GCr15 E52100 SUJ2
Stainless steel 1Cr13,2Cr13 412,420 SUS410,SUS420
Tooling steel T8,T10
W6Mo5Cr4V2
W1A-8,
W1A-9.5,M2
SK7,SK4,SKH9
Free cutting steel Y12,Y12Pb,Y15,
Y15Pb,Y40Mn
1212,11L08,1215
12L13,12L14,1141
SUM21,SUM32,
SUM22L,SUM42...

    Carbon/alloy square/round steel bar is ideal for many industrial products and applications where strength and durability are required. Characteristics of carbon steel bars are based on the carbon content. Increased carbon content will raise carbon steel's hardness and strength. Inversely, lower carbon content results in a softer (mild) carbon steel that is easier to machine and weld.
 
    The type of carbon steel needed is generally based on the application requirements. If you need assistance in determining the right carbon steel bar for your job our sales team is happy to help. Contact us on how we can help you with your next project. 

Detailed Photos
Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar

Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar
Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar

Factory Display
 


Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar
Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar

Company Profile

Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod BarBlack Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod BarBlack Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar

Certifications

Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar

Packaging & Shipping
Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar

Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar
Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar

Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod BarBlack Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar

Our Advantages

    We have 80 percent of the world's customers, a huge market from all over the world to visit our company.The quality of products is checked by professional scientific research personnel of precise instrument testing, with the complete certificate testing.
    Our customers who buy our steel products cover Europe, Southeast Asia, Middle East, South America and Africa and many other countries and regions. Customers who visited our company is countless.Our products have won the world wide praise among our customers . Now, We are more and more famous in the steel industry. 
Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar
Black Annealed Square Steel Supplier C45 S45c S235 42CrMo ASTM A283 A283A SAE 1020 4140 4340 8620 8640 8720 Round/Square/Flat Hot Rolled Carbon Steel Rod Bar

FAQ

Q1.Are you a trade company or manufacturer?
We are a company integrating industry and trade.

Q2. Can I request to change the form of packaging and transportation?
A: Yes, We can change the form of the packaging and transportation according to your request, but you have to bear their own costs incurred during this period and the spreads.

Q3.Can you provide free sample?
Yes,you can get available samples in our stock.If the samples from new production, we will charge some reasonable cost, but this amount will be deducted from your first order. 

Q4. How can I get a quotation from you ?
You can leave us message, and we will reply every message in time. Or we may talk on line by Trademanager.And you can also find our contact information on contact page.

Q5.How can you garantee what I got will be good ?
We are factory with 100% predelivery inspection which garantee the quality.And as Steel supplier on Made in China. Made in China assurance will make garantee,which means Made in China will pay your money back in advance if there is any problem with the products.

Q6.Can I have my own logo on the product?
Of course!We are a custom service,it includes customized packaging,customized logo,graphic customization.

Q:How about the Payment? 
If pay by T/T, we will charge 20% deposit before production and received the balance before shipment. Another way is irrevocable L/C at sight. 


    With concept of "Keep Improving,Win-win Cooperation",and executed by reliable quality and after sales service system, Kunda gained good reputation from customers at home and abroad.We sincerely welcome you come to our company negotiate business and make great achievement together !

 

Any inquiry or new order, feel free to contact me.

 

 

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