AISI 4130
AISI 4130 - chromium molybdenum alloy steel. A low alloy steel is used in oil patch applications and used widely as an aircraft steel. 4130 is an oil and gas steel grade with a lower carbon content than 4140 giving 4130 improved weldability, the trade off is reduced through thickness strength. 4130 has a low resistance to corrosion. 4130 can also be used to make car connecting rods, shafts, fittings, engine mounting lugs, bushes, gears, axles, bolts, gas cylinders, airframe components, hydraulic lines and nitrided machinery parts. Typical range of hardness is 90-96 Rockwell B.
The 41xx family of steel include chromium and molybdenum and are often referred to as chromoly steel or chrome-moly. Chromoly steels have an excellent strength to weight ratio but do not contain sufficient quantities to provide the levels of corrosion resistance found in stainless steels. These steel are often used in aircraft parts also frequently used within the gas and oil industry.
AISI 4130 is supplied treated in the T condition Brinell 248-302. We can offer AISI 4130 in blocks flats and squares from stock.
AISI 4130 steel composition |
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C |
SI |
MN |
S |
P |
0.28/0.33 |
0.15/0.35 |
0.40/0.60 |
0.025 MAX |
0.025 MAX |
Cr |
Mo |
Ni |
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0.80/1.10 |
0.15/0.25 |
0.50 max |
Approximate equivalents: 25CrMo4, DIN 1.7218, 30CrMo, 708A25, 708M25, 30CrMo, SCM430
Popular AISI 4130 size ranges shown below, other sizes available upon request.
As we cut all our AISI 4130 flats & squares from plate we can cut other sizes more suitable for you.
10mm x 20, 25, 30, 40, 50, 60, 65, 70, 75, 80, 85, 90, 95, 100, 120, 125, 130, 140, 150, 160, 180, 200, 250, 250, 300, 320, 350, 400, 500
20mm x 20, 25, 30, 40, 50, 60, 65, 70, 75, 80, 85, 90, 95, 100, 120, 125, 130, 140, 150, 160, 180, 200, 250, 250, 300, 320, 350, 400, 500
30mm x 35, 40, 50, 60, 65, 70, 75, 80, 85, 90, 95, 100, 120, 125, 130, 140, 150, 160, 180, 200, 250, 250, 300, 320, 350, 400, 500
40mm x 50, 60, 65, 70, 75, 80, 85, 90, 95, 100, 120, 125, 130, 140, 150, 160, 180, 200, 250, 250, 300, 320, 350, 400, 500
50mm x 60, 65, 70, 75, 80, 85, 90, 95, 100, 120, 125, 130, 140, 150, 160, 180, 200, 250, 250, 300, 320, 350, 400, 500
60mm x 65, 70, 75, 80, 85, 90, 95, 100, 120, 125, 130, 140,150, 160, 180, 200, 250, 250, 300, 320, 350, 400, 500,
70mm x 75, 80, 85, 90, 95, 100, 120, 125, 130, 140, 150, 160, 180, 200, 250, 250, 300, 320, 350, 400, 500
80mm x 85, 90, 95, 100, 120, 125, 130, 140,150, 160, 180, 200, 250, 250, 300, 320, 350, 400, 500
90mm x 95, 100, 120, 125, 130, 140, 150, 160, 180, 200, 250, 250, 300, 320, 350, 400, 500, 550, 600, 700, 800, 900, 1000
100mm x 120, 125, 130, 140, 150, 160, 180, 200, 250, 250, 300, 320, 350, 400, 500, 550, 600, 700, 800, 900, 1000
110mm x 120, 125, 130, 140, 150, 160, 180, 200, 250, 250, 300, 320, 350, 400, 500, 550, 600, 700, 800, 900, 1000
120mm x 125, 130, 140, 150, 160, 180, 200, 250, 300, 320, 350, 400, 500, 550, 600, 700, 800, 900, 1000
130mm x 140, 150, 160, 180, 200, 250, 300, 320, 350, 400, 500, 550, 600, 700, 800, 900, 1000
140mm x 150, 160, 180, 200, 250, 300, 320, 350, 400, 500, 550, 600, 700, 800, 900, 1000
150mm x 160, 180, 200, 250, 300, 320, 350, 350, 400, 420, 450, 480, 500, 550, 600, 700, 750, 780, 800, 820, 850, 900, 1000
160mm x 180, 200, 250, 300, 320, 350, 350, 400, 420, 450, 480, 500, 550, 600, 700, 750, 780, 800, 820, 850, 900, 1000
180mm x 200, 250, 300, 320, 350, 350, 400, 420, 450, 480, 500, 550, 600, 700, 750, 780, 800, 820, 850, 900, 1000
190mm x 200, 250, 300, 320, 350, 350, 400, 420, 450, 480, 500, 550, 600, 700, 750, 780, 800, 820, 850, 900, 1000
200mm x 220, 250, 300, 320, 350, 350, 400, 420, 450, 480, 500, 550, 600, 700, 750, 780, 800, 820, 850, 900, 1000
220mm x 250, 300, 320, 350, 350, 400, 420, 450, 480, 500, 550, 600, 700, 750, 780, 800, 820, 850, 900, 1000
250mm x 260, 300, 320, 350, 350, 400, 420, 450, 480, 500, 550, 600, 700, 750, 780, 800, 820, 850, 900, 1000
280mm x 300, 320, 350, 350, 400, 420, 450, 480, 500, 550, 600, 700, 750, 780, 800, 820, 850, 900, 1000
300mm x 320, 350, 350, 400, 420, 450, 480, 500, 550, 600, 700, 750, 780, 800, 820, 850, 900, 1000
AISI 4130 Flats and Squares |
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25 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 | 160 | 170 | 180 | 190 | |
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125 | x | x | x | x | x | x | x | x | x | x | x | |||||||
130 | x | x | x | x | x | x | x | x | x | x | x | x | ||||||
140 | x | x | x | x | x | x | x | x | x | x | x | x | x | |||||
150 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | ||||
160 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | |||
170 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | |||
180 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | ||
190 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x |
200 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x |
220 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x |
230 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x |
240 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x |
240 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x |
260 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x |
270 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x |
280 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x |
290 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x |
300 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x |
310 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x |
320 | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x |
Engineering Steel
- EN3B - 080A15 070M20 Mild steel
- EN1A - 220M07 230M07
- EN1A LD - 220M07 PB 230M07 PB
- EN8 - 080A42 080M40
- EN9 - 070M55
- EN14 - 150M19
- EN16 - 605M36 606M36
- EN19 - 708M40 709M40
- EN24/EN24T - 817M40
- EN36 - 655M13
- S690QL
- Alloy24™
- 4130 - 708A25
- 4140 - 708M40
- 4140 Plate
- Chrome Plated Steel Bar
Useful tools