Main Products: screw thread steel bar ,steel wire ,ETP sheet ,galvanized steel wire ,galvanized wire
SAE 8640 Steel Round Bar
Negotiable /Ton
Min.Order:1 Ton
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Tianjin Guotai Qiancheng Iron & Steel Co., Ltd.
Business Type: Trading Company
Tianjin ChinaMain Products: screw thread steel bar ,steel wire ,ETP sheet ,galvanized steel wire ,galvanized wireProduct Details
| Packaging Details: | In bundle or as the requirments |
|---|---|
| Delivery Detail: | Within 30 days after the final confirmation |
SAE 8640 Steel Round Bar
1.Grade:8640
2.Dia:12-300mm
3.Hot-rolled
4.MOQ:25tons
Chemical Composition
Grade | C | Si | Mn | P | S | Cr | Mo | Ni | Cu |
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 |
Dimensional Range
| Hot-rolled | Cold-drawn | Forged |
Round | 20mm-300mm | 16mm-70mm | 250mm-800mm |
Square | 20*20mm-130*130mm | 10*10mm-80*80mm | Your requirements |
Flat | Thickness:12mm-100mm Width: 20mm-150mm | Thickness:6mm-70mm Width:16mm-80mm | Your requirements |
Size Tolerances
Hot-rolled steel round or square bar
d/a(mm) | 5.5-7 | 7-20 | 20-30 | 30-50 | 50-80 | 80-110 | 110-150 | 150-190 | 190-250 |
(mm) | +0.30 -0.30 | +0.35 -0.35 | +0.40 -0.40 | +0.50 -0.50 | +0.70 -0.70 | +1.0 -1.0 | +1.3 -1.3 | +2.0 -2.0 | +2.5 -2.5 |
Hot-rolled flat bar
Width(mm) | Thickness(mm) | ||||
Size | Size Tolerance | Size | Size Tolerance | ||
| Normal | Better |
| Normal | Better |
10-50 | +0.5, -1.0 | +0.3, -0.9 | 3-16 | +0.3, -0.5 | +0.2, -0.4 |
50-75 | +0.6, -1.3 | +0.4, -1.2 | 16-60 | +1.5% -3.0% | +1.0% -2.5% |
75-100 | +0.9, -1.8 | +0.7, -1.7 | |||
100-150 | +1.0%, -2.0% | +0.8%, -1.8% | |||
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 !
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