100% Original Factory Erw Welded Hot Rolled - 4140 steel round bar for mechanical using – RELIANCE Detail:
Product Description
standard | BS4449:1997,GB1449.2-2007,JIS G3112-2004, ASTM A615-A615M-04a |
grade | BS4449, Gr460B, GB1449.2, HRB335, HRB400, HRB500, HRB500E, ASTM A615, GR40/GR60, JIS G3112, SD390, SD360 |
size | 10mm, 12mm, 13mm, 14mm, 16mm, 20mm, 22mm, 25mm, 30mm, 32mm, 40mm,50mm, etc.. |
length | 4-12m or according to customer’s requirement |
application | civil engineering construction,such as housing, bridges,road, etc |
Delivery | Normally 7-15 days after receive deposits or L/C at sight. |
package | Packed in bundle, standard seaworthy package or customers’ requirements. |
Grade |
Yield strength REL(RP0.2),MPa |
Tensile strength Rm,MPa |
Elongation at failure A/% |
Uniform elongation Agt/% |
Stressel relaxation |
|
Original stress |
Relaxation rate after 1000hr/% |
|||||
PSB785 |
≥785 |
≥980 |
≥7 |
≥3.5 |
0.8R |
≤3 |
PSB830 |
≥830 |
≥1030 |
≥6 |
|||
PSB930 |
≥930 |
≥1080 |
≥6 |
|||
PSB1080 |
≥1080 |
≥1230 |
≥6 |
|
||
PSB500 |
≥500 |
≥630 |
≥10 |
≥2.5 |
|
Company Information
Tianjin Reliance Company , is specialized in manufacturing steel pipes. and many special service can be done for you. such as ends treatment, surface finished, with fittings, loading all kinds of sizes’ goods in container together, and so on.
Our office is located in Nankai distric, Tianjin city, near Beijing, the capital of China, and with excellent location.It just takes 2 hours from beijing international airport to our company by high speed rail.and the goods can be delivered from our factory to Tianjin port for 2 hours. you can take 40 minutes from our office to Tianjin beihai international airport by subway.
Export record:
India,Pakistan,Tajikistan,Thailand,Myanmar,Australia,Canada,United States,United Kingdom,Kuwait,Mauritius,Morocco,Paraguay,Ghana,Fiji,Oman,Czech Republic,Kuwait,Korea and so on.
Packaging & Shipping
Our Services:
1.we can do special orders accoding to the customers’ requestments.
2.we also can provide all kinds of sizes’ steel pipes.
3.All the production process are made under the ISO 9001:2008 strictly.
4.Sample: free and similar sizes ones.
5.Trade terms: FOB /CFR/ CIF
6.Small order: welcome
Product detail pictures:

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We stick to our enterprise spirit of Quality, Efficiency, Innovation and Integrity. We aim to create more value for our customers with our rich resources, advanced machinery, experienced workers and excellent services for 100% Original Factory Erw Welded Hot Rolled - 4140 steel round bar for mechanical using – RELIANCE, The product will supply to all over the world, such as: Moscow , Munich , India , With strong technical strength and advanced production equipment, and SMS people purposefully , qualified, dedicated spirit of enterprise. Enterprises took the lead through the ISO 9001:2008 international quality management system certification, CE certification EU ; CCC.SGS.CQC other related product certification. We look forward to reactivating our company connection.

The factory can meet continuously developing economic and market needs, so that their products are widely recognized and trusted, and that's why we chose this company.
