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Categories | Alloy Steel Round Bar |
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Brand Name: | GNEE |
Model Number: | Alloy Steel Round Bar |
Certification: | ISO 9001 |
Place of Origin: | Henan |
MOQ: | 3 ton |
Price: | Negotiable |
Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
Supply Ability: | 2500 ton/tons per month |
Delivery Time: | 5-8 work days |
Packaging Details: | Standard Sea-worthy Packing |
Tolerance: | ±1% |
Processing Service: | Bending, Welding, Decoiling, Punching, Cutting |
Grade: | 4340 |
Brand: | GNEE |
Thickness: | 1-100MM |
Length: | 12M, 6m, 6.4M, 3-12m |
Company Info. |
Gnee (Tianjin) Multinational Trade Co., Ltd. |
Verified Supplier |
View Contact Details |
Product List |
4340 Alloy Steel Round Bar High Pressure Steel Pipe For Producing
4340 alloy steel is a high quality Quenched and Tempered Alloy Structural steel, It belong to the high quality medium carbon, Oil Quenched & Tempered Hardenss is 28-34 HRc.4340 Annealing delivery hardenss less than 250HB.
Regular size and Tolerance
1) Hot Rolled round bar | |||
Diameter (mm) | Diameter Tolerance (mm) | Diameter (mm) | Diameter Tolerance (mm) |
≤12.70 | -0.13 ~0.30 | >50.80~63.5 | -0.25~0.76 |
12.7~25.40 | -0.13~0.41 | >63.50~76.20 | -0.25~1.02 |
>25.4~38.10 | -0.15~0.51 | >76.20~101.60 | -0.30~+1.27 |
>38.1~50.80 | -0.20~0.64 | >101.60~203.20 | -0.38~3.81 |
2) Hot Rolled steel plate | |||
Thickness (mm) | Thickness Tolerance (mm) | Thickness (mm) | Thickness Tolerance (mm) |
≤25.4 | -0.41~0.79 | >127~152 | -1.60~2.39 |
>25.4~76 | -0.79~1.19 | >178~254 | -1.98~3.18 |
>76~127 | -1.19~1.60 | >254~305 | -2.39~3.96 |
Forming
AISI 4340 alloy steel has good ductility and formability in the
annealed condition. It can be bent or formed by pressing or
spinning in the annealed state.
Welding
AISI 4340 alloy steel can be welded using fusion or resistance
welding methods. Preheat and post heat weld procedures are followed
while welding this steel by established methods.
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