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4340 hot rolled steel round bar
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Product Details
| Steel Grade | Alloy Steel | Standard | AISI, ASTM, BS, DIN, GB, JIS | |
| Dimensions | 20-300mm | Place of Origin | Tianjin, China | |
| Brand Name | Juneng, Xiwang, Laigang, Qilu | Model Number | 4340 | |
| Technique | Hot Rolled | Application | Structural Steel Bar | |
| Alloy Or Not | Is Alloy | Special Use | Mold Steel | |
| Type | Alloy Steel Bar |
Product Description
Quick Details
- Steel Grade: 4340 40CrNiMoA 8620 8640 4320 817M40 816M40 EN24 40XMA SNCM439 SNCM8 S
- Standard: AISI, ASTM, BS, DIN, GB, JIS
- Dimensions: 20-300mm
- Place of Origin: Tianjin, China (Mainland)
- Brand Name: Juneng, Xiwang, Laigang, Qilu
- Model Number: 4340
- Technique: Hot Rolled
- Application: Structural Steel Bar
- Alloy Or Not: Is Alloy
- Special Use: Mold Steel
- Type: Alloy Steel Bar
Packaging & Delivery
| Packaging Details: | standard bundles,containers or bulk |
|---|---|
| Delivery Detail: | 1month |
Specifications
4340 hot rolled steel round bar
1. Hot rolled, cold drawn, forged
2. Black or bright surface
3. Grade: 4340 8620 40CrNiMoA
4340 hot rolled steel round bar
1. Grade: 4340 40CrNiMoA 8620 8640 4320 817M40 816M40 EN24 40XMA SNCM439 SNCM8 SNCM220 SNCM21
2. Dia: 20-300mm
3. MOQ: 5mt
4. Chemical composition:
Grade | C | Si | Mn | P | S | Cr | Mo | Ni | Cu |
4320 | 0.17 0.22 | 0.15 0.35 | 0.45 0.65 | Max 0.030 | Max 0.040 | 0.40 0.60 | 0.20 0.30 | 1.65 2.00 | Max 0.35 |
4340 | 0.38 0.43 | 0.15 0.35 | 0.60 0.80 | Max 0.030 | Max 0.040 | 0.70 0.90 | 0.20 0.30 | 1.65 2.00 | Max 0.35 |
8620 | 0.18 0.23 | 0.15 0.35 | 0.70 0.90 | Max 0.030 | Max 0.040 | 0.40 0.60 | 0.15 0.25 | 0.40 0.70 | Max 0.35 |
8640 | 0.38 0.43 | 0.15 0.35 | 0.75 1.00 | Max 0.030 | Max 0.040 | 0.40 0.60 | 0.15 0.25 | 0.40 0.70 | Max 0.35 |
40CrNiMoA | 0.37 0.44 | 0.17 0.37 | 0.50 0.80 | 0.60 0.90 | 0.15 0.25 | 1.25 1.65 |
5. Size Tolerance:
Length tolerance: +100mm/-0mm
Side length tolerance: +/-2mm
Straightness: max 6mm/m
6. Quality Contation
Both end of each bar must be cut.
Ladle furnanced and vacuum de-gassed
Show heat No. on each bar
Surface condition the surface of the hot rolled square bar shall befree cracks, scar and wrinkles that affect the use of the billets. In case there is the above-mentioned defect, it shall be remove.
The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition shall be within the limit stipulated in the contract.
7. Packing situation: standard seaworthy packing or as customer required
8. Delivery time: 20 days after order confirmed
9. Payment: T/T or L/C at sight
10. According to national standard (GB)for our products, if not, supply according to national standards(GB) or agreement.
Production Flow Chart:
Tianjin Guotai Qiancheng Iron & Steel Co., Ltd., based in the largest steel trading market in China, Tianjin, as a direct agent of Tiantie Zhaer Steel which is one of the largest steel manufacturers in China specializes in the export of Screw-thread steel bars for the prestressing of concrete ,anchorages and PC stranded steel wire including HRB500, PSB500, PSB785, PSB830, PSB930, PSB1080 of 15mm, 16mm, 18mm 20mm, 22mm, 25mm, 28mm, 32mm, 36mm, 40mm, 50mm, 75mm and other specifications, Left hand screw thread steel bars, Right hand screw thread steel bars and Deformed steel bars of HRB500E, HRB500 , HRB400E , HRB335 grades. Besides, we also supply construction and building use steel products including Stainless steel pipes,sheets and coil, Aluminum ingots and billets, Steel angle bars, I beam, H beam, T beam, PPGI and other steel products from major steel mills in China.
Adhering to the integrity of management and customer first concept, we will continue providing high quality products to customers with good service.
Contact : Mr. Tom
FAX : 0086-022-26802018
QQ : 809137356
website : www.guotaiqiancheng.en.china.cn
We warmly welcome kind inquiries and visit from customers from all over the world for mutual benefit and bright future !
Contact Us
- Tianjin Guotai Qiancheng Iron & Steel Co., Ltd.
- Contact nameRobinson Lee Chat Now
- Phone86-022-84612322
- Address216, Zone A, Jinchen Steel Market, Beicang Road
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