High Quality AISI 4140 4130 1020 1045 Alloy Carbon Round Steel Bar for Building
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Product Highlights
- Wide Grade Selection: Supply AISI 4140, 4130, 1020, 1045, and various tool, alloy, and stainless steels.
- 1-Year Warranty: Comprehensive 1-year warranty coverage for all supplied steel products.
- Professional Supplier: Over 15 years experience in steel industry with ISO 9001 certification.
- Global Export Capability: Export volume reaches 160,000 tons per year to markets worldwide.
- Certified Quality: Strict quality guarantee with MTC, API, ABS, SGS, and BV certificates provided.
- Smooth Surface Finish: Hot rolled technique ensuring smooth surface treatment for structural use.
- Competitive Pricing: Offer best quality products with competitive prices to give you an edge.
- Efficient After-Sales: Dedicated after-sales service support ensuring customer satisfaction.
Product Attributes
- Customization
- Available
- After-sales Service
- Support
- Warranty
- 1 Year
- Model NO.
- 4140 4130 1020 1045
- Type
- Carbon Steel Bar
- Standard
- AISI, ASTM, GB, JIS, DIN, BS
- Technique
- Hot Rolled
- Application
- Structural Steel Bar, Tool Steel Bar, Die Steel Bar
- Surface Treatment
- Smooth
- Alloy
- Alloy
- Special Use
- Mold Steel, Free Cutting Steel, Cold Heading Steel
- Transport Package
- Standard Packing
- Specification
- 10-910mm
- Trademark
- Boer King
- Origin
- China
- HS Code
- 7304
- Production Capacity
- 10000 Tons/Year
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Product Description
Congratulations you find us the best supplier ↓
We do care:
--Good Quality
--On-time Delivery
--Competitive Price
--Efficient After Service
| Steel series | Representative steel type |
| Carbon Steel series | AISI 1020,1045,A36,S355JR,S355JO |
| Petroleum machinery series | AISI4150,AISI4140,AISI4130, |
| 30CrMo,4145H | |
| Tool mold series | 1.2714,5CrMnMo,5CrNiMoV, |
| 1.2738,1.2311,1.2312 1.2714 H13 | |
| Bearing series | 52100,GCr15,SUJ2 |
| Marine series | 4140,42CrMo,SCM440, |
| 709M40 | |
| Car series | SAE8620,20CrNiMo, |
| SNCM220 | |
| Heavy-duty transmission series | 40CrNiMo,SNCM439, |
| SAE4340,EN24 | |
| Mining machinery series | 655M13,826M40, |
| 25CrMo | |
| Wind power gear series | 18CrNiMo7-6, 17CrNiMo6, 1.6582,1.6587,SAE8620 |
| Wind power spindle series | 34CrNiMo6,817M40 |
| Nitriding series | 20MnCr5,38CrMoAl, |
| 31CrMoV9 | |
| Pressure vessel series | 15CrMo,13CrMo4-4 |
| Metallurgical roll series | 21CrMoV511,W1.7225, |
| EN19,709M40 |
| 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 | |||||




Tianjin Boer King Steel is a professional trading company and has been in steel industry for more than 15years, specializing in seamless steel pipe,oil casing/drill pipe, galvanized steel pipe, stainless steel pipe,ERW/SSAW/LSAW/ welded pipe.
Also we sale hot and cold rolled steel coils,steel plates,galvanized steel coils, all kinds of profiles like H-beam, Angel bar,C profile etc.
We have established long term cooperations with several famous steel manufactures all over the world, and we can offer you best quality products with competitive price which will give you an edge over your competitors.
Besides, we offer best service all the time.We will do our best to satisfy you needs for the products. Our products have been sold in many countries and areas of the world including South America, Iran, Kenya, Israel etc, and our export volume reaches 160,000tons per year.
We execute quality gurantee system ISO 9001,2008 strictly and all certicates and the third party inspection like MTC,API,ABS,ISO9001,SGS BV etc. will be provided as client's requirements.
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASI236709". Items marked "" are certified.
Company Profile
Tianjin Boer King Steel Co., Ltd. Locates in the Shuang Gang industrial zone of Jinnan district 36km away from tianjin port. 6km away from tianjin airport, 40km away from train station.
We carry out the total quality management. Established the quality management system according to the ISO9001: 2008...Now, sales 160, 000 tons per year. Including the steel pipes for the high, medium and low pressure boilers, shipping, transporting liquid products, the petroleum cracking process, the fertilizer facilities, the structure, the hollow sucker rod, oil well casing and drill pipe, galvanized steel pipe, and some stainless steel. Provide high quality products to in different industries customers.
In recent years, the company products not only the sale in domestic market, and also a large number of export to overseas market. With a number of overseas well-known enterprises to establish a good long-term cooperative relationship.
We continue to focus on the establishment of a good image and the accumulation of intangible assets and always adhere to the principle of "Integrity, Create, Leap, Develop". With a long-term developing vision and progressive development strategy, with the "common prosperity and common development" spirit, we follow the business rule of "Honest and Trustworthy". We constantly improve product quality and further optimize the structure of human resources, organization and management, forming a dynamic, innovative and modern enterprise!
On behalf of all the staff, president Mr Liu, sincerely invite all the customers, home and abroad, to visit and make comments. We would like to build the best long term cooperation with customers from all over the world, coexist and co-develop together.
About Our Factory & Business Background
- Address
- Tianjin, China
- Terms of Payment
- LC, T/T, PayPal, Western Union
- International Commercial Terms(Incoterms)
- FOB, EXW, CFR, CIF
- Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: one month - Nearest Port
- Tianjin,China
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Export Year
- 2024-06-13
- Main Markets
- North America, South America, Southeast Asia, Africa, Mid East, Eastern Asia, Western Europe
FAQ
- What grades of steel are available?
- We supply a wide range including AISI 4140, 4130, 1020, 1045, tool steels, alloy steels, and stainless steels like 304 and 316.
- What is the warranty period?
- We provide a 1-year warranty for our steel bar products.
- What certifications are provided?
- We provide MTC, API, ABS, ISO9001, SGS, and BV certificates as per client requirements.
- What is the lead time for orders?
- Peak season lead time is within 15 workdays, while off-season lead time is about one month.
- What are the payment terms?
- We accept LC, T/T, PayPal, and Western Union for payments.
- What is the surface treatment?
- The steel bars feature a smooth surface treatment suitable for structural and tool applications.
- Where are the products exported?
- Our products are sold globally, including South America, Iran, Kenya, Israel, and Western Europe.
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