4130 Chromoly Tube

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price: Negotiable
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Delivery term: The date of payment from buyers deliver within days
seat: Beijing
Validity to: Long-term effective
Last update: 2020-03-23 13:24
Browse the number: 83
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Product details

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

Specifications

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

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


http://www.lfspecialsteel.com/

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