Type: | Alloy Steel Bar |
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Standard: | AISI, ASTM, GB, JIS, DIN, BS |
Technique: | Hot Rolled |
Application: | Structural Steel Bar, Tool Steel Bar, Die Steel Bar |
Surface Treatment: | Black/Peeling/Polishing/Machining/Grinding/Turning |
Alloy: | Alloy |
Samples: |
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Customization: |
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Low alloy high strength steel is a kind of engineering structural steel developed by adding a small amount of Mn, Si, Nb, V, Ti, Al and other alloy elements on the basis of carbon structural steel. The so-called low alloy means that the total amount of alloy elements in steel does not exceed 3%. High strength is relative to carbon engineering structural steel. The development principle of low alloy high strength steel is to use as few alloying elements as possible to obtain as high comprehensive mechanical properties as possible, so as to meet the purpose of use and low cost. Low alloy high-strength steel can meet the requirements of large bearing capacity of various structures (such as large bridges, pressure vessels, ships, etc.) in engineering, and at the same time, it is required to reduce the dead weight of structures, improve reliability, and save materials and resources. This kind of steel is mainly used to manufacture various engineering structures with high strength requirements, such as bridges, ships, vehicles, high pressure vessels, oil and gas pipelines, large steel structures, etc. Because this kind of steel can obtain high strength without complex treatment process or even heat treatment, which greatly reduces the quality of engineering structures, it is used to replace general carbon structural steel.
Material | C | Si | Mn | P | S | Cr | Ni | Cu | Mo |
≤ | |||||||||
ASTM 5115 | 0.18 | 0.37 | 0.7 | 0.035 | 0.035 | 1 | 0.3 | 0.3 | 0.15 |
ASTM 5120 | 0.24 | 0.37 | 0.8 | 0.035 | 0.035 | 1 | 0.3 | 0.3 | 0.15 |
ASTM 5130/30Cr/SCr430/25Cr4/1.7030 | 0.34 | 0.37 | 0.8 | 0.035 | 0.035 | 1.1 | 0.3 | 0.3 | 0.15 |
ASTM 5140 | 0.44 | 0.37 | 0.8 | 0.035 | 0.035 | 1.1 | 0.3 | 0.3 | 0.15 |
ASTM 5145 | 0.49 | 0.37 | 0.8 | 0.035 | 0.035 | 1.1 | 0.3 | 0.3 | 0.15 |
ASTM 4119 | 0.15 | 0.37 | 0.7 | 0.035 | 0.035 | 0.7 | 0.3 | 0.3 | 0.55 |
ASTM 4130 | 0.34 | 0.37 | 0.7 | 0.035 | 0.035 | 1.1 | 0.3 | 0.3 | 0.25 |
ASTM 1335 | 0.38 | 0.35 | 1.9 | 0.035 | 0.04 | 0.2 | 0.25 | 0.35 | 0.06 |
ASTM 4317 | 0.4 | 0.37 | 0.7 | 0.035 | 0.035 | 1.1 | 0.3 | 0.3 | 0.25 |
ASTM 4140 | 0.45 | 0.37 | 0.8 | 0.035 | 0.035 | 1.2 | 0.3 | 0.3 | 0.25 |
GB38CrMoAI/JIS SCM645 | 0.42 | 0.45 | 0.6 | 0.035 | 0.035 | 1.65 | 0.3 | 0.3 | 0.25 |
ASTM 6150 | 0.54 | 0.37 | 0.8 | 0.025 | 0.025 | 1.1 | 0.3 | 0.25 | 0.1 |
ASTM 4142 | 0.45 | 0.37 | 1.2 | 0.035 | 0.035 | 1.2 | 0.3 | 0.3 | 0.3 |
30CrNiMo8/ 1.6580 30Cr2Ni2Mo SNCM431 | 0.26-0.34 | 0.17-0.37 | 0.5-0.8 | 0.03 | 0.03 | 1.8-2.2 | 1.8-2.2 | 0.3-0.5 | 0.3 |
ALLOY STRUCTURE STEEL | |||||
Grade | AISI /ASTM | DIN (W.Nr) | JIS | EN/ BS | GB |
5120 | 5120 | 1.7027 /21Cr4 | SCr420 | 20Cr | |
530M40 /5140 | 530M40 /5140 | 1.7035 /41Cr4 | SCr440 | 40Cr | |
5145 | 5145 | Scr445 | 45CR4 | ||
4118 | 4118 | 1.7243 /18CrMo4 | SCM418 / SCM420 | 20CrMo | |
4135 | 4130 | 1.7218 /25CrMo4 | SCM430 | 708A25/ 708M25 | 30CrMo |
4140 | 4140 | 1.7225 /42CrMo4 | SCM440 | EN19/ 709M40 | 42CrMo |
4340 | 4340 | 1.6582/ 34CrNiMo6 | SNCM 439/ SNCM8 | EN24/ 817M40 | 40CrNi2Mo |
8620 | 8620 | 1.6523/ 21NiCrMo2 | SNCM220 | 805M20 | 20CrNiMo |
CARBON STEEL | |||||
20 | 1020 | C22. CK22 | S20C | EN3B /070M20 | 20 |
35 | 1035 | C35.CK35 | S35C | 35 | |
45 | 1045 | C45.CK45 | S45C | EN8D/C45E | 45 |
50 | 1050 | CK53 | S50C | EN9/070M55 | 50 |
Q355 | S355J /ST52 | EN14 | Q355 | ||
30Mn | 1030.1033 | S30C | 30Mn | ||
30Mn2 | 1330 | 30Mn5 | SMn433h | 30Mn2 | |
STAINLESS STEEL | |||||
steel grades: 304, 304L, 316, 316L, 321, 410 430, 431, 2205, 2304, 2507. F53, F55 |
Material
|
Diameter of sample
d mm |
Impact toughness value αkv (J/cm2)
|
Tensile strength
σb Mpa |
Point of yield
σs Mpa |
Ratio of elongation
δ5 % |
Reduction of section
ψ % |
hardness
HBW |
Shock absorption energy
KV2 J |
SNCM431
|
25
|
--
|
980
|
835
|
10
|
50
|
269
|
71
|
It is applicable to steel bars with nominal diameter or thickness not greater than 80mm. The mechanical properties of steel bars with nominal diameter or thickness greater than 80mm shall meet the following requirements
1. Who are we?
Our headquarter is located in Shandong, China. Since 2022, we have sold to North America (60.00%), Western Europe (14.00%) and South America (6.00%). There are about 11-50 people in our office.
2. How do we guarantee quality?
Always provide pre-production samples before mass production;
Always carry out final inspection before shipment;
3. What can you buy from us?
Copper, aluminum, die steel, titanium, customized machine parts
4. Why should you buy from us instead of other suppliers?
The company has 25 years of production experience. It has advanced precision production equipment, modern large warehouse, 200000 tons of inventory goods and a number of long-term stable cooperative customers.
5. What services can we provide?
Accepted delivery conditions: FOB, CFR, CIF, EXW
Accepted payment currency: US dollar, Euro, Japanese yen, Canadian dollar, Australian dollar, Hong Kong dollar, British pound, RMB, Swiss franc;
Accepted payment type: T/T, L/C, D/P D/A, PayPal;
Optional ports: Tianjin, Shanghai, Guangzhou;
Spoken: English, Chinese
6. How can we get your price?
A. We need the following information to quote for you:
1). Product Name
2). standard
3). Material grade (chemical composition)
4). dimension
5). amount
6). Special part drawing
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