'Based on domestic market and expand overseas business' is our progress strategy for SUP10 Spring Steel Bar, High Speed Tool Steel Bar W18Cr4V, Bearing Steel Wire. We have a high reputation in the industry with superb technology, strict manufacturing technology and sound production management system. Now, we professionally supplies customers with our main products And our business is not only the 'buy' and 'sell', but also focus on more.
4130 chromoly tube
4130 structural steel has high strength and toughness, high hardenability, critical hardenable diameter in oil is 15 ~ 70mm; the thermal strength of steel is also good, it has sufficient high temperature strength below 500 ℃, but at 550 ℃ Its strength decreases significantly; when the alloy element is welded at the lower limit, it is quite good, but the weldability is moderate near the upper limit, and it needs to be preheated to above 175 ° C before welding; the machinability of the steel is good, and the plasticity is moderate during cold deformation; The range of 300 ～ 350 ℃ has the first type of tempering brittleness; there is a tendency to form white spots.
AE 4130/JIS SCM430 25crmo4 1.7243 l alloy seamless steel pipe.
4130 is chromoly steel, which has high strength and toughness, high hardenability
Technical parameters
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Specifications |
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Chemical component |
C：0.26～0.34 Si：0.17～0.37Mn：0.40～0.70Cr：0.80～1.10Mo：0.15～0.25P：≤0.035S：≤0.035Ni：≤0.030Cu：≤0.030 |
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Mechanical property |
Tensile strengthσb/MPa)：≥930 Yield strength(σs/MPa)：≥785 Elongation (δ5/%)：≥12 |
Stock tube
Application areas:
(1) In the medium-sized machinery manufacturing industry, it is mainly used to manufacture quenched and tempered parts with large cross-sections and working under high stress conditions, such as shafts, main shafts, and steering wheels, bolts, studs, gears, etc. under high load;
(2) Used in the chemical industry to manufacture welded structures consisting of welded parts, plates and pipes, and high-pressure conduits operating at temperatures not exceeding 250 ° C in nitrogen-containing hydrogen media;
(3) In the turbine and boiler manufacturing industry, it is used to manufacture fasteners that work below 450 ° C, flanges and flanges under high pressure that are below 500 ° C.
FAQ
1. Are you factory or trading company?
We have cooperative factory
2. What is your delivery time?
Always 25-35workdays
3. What kind of tubes do you have?
We have cold drawn seamless tube and hot rolled seamless tube
4. Which sea port?
We choose shanghai sea port
5. Which country have you sold these tubes?
We have sold 4130 4140 tubes to Paraguay,Portugal,Brazil,Singapore,Israel,
Our Service
After years of hard work in the market, our company has won a good reputation in the domestic and foreign markets with its keen market judgment and high-quality 4130 Thin Wall Cold Rolled Chromoly Steel Welded Tubing. We always adhere to follow the honesty, mutual benefit, common development, after years of development and the tireless efforts of all staff, now has perfect export system, diversified logistics solutions, thorough meet customer shipping, air transport, international express and logistics services. Creation of core values and the pursuit of excellence are the best ideas on the interpretation of research and development.