China Special Steel/1.5023 38si7 38si2 A11383 Round Steel/High-Strength Alloy Structural Steel

• Type: Steel Bar
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Alloy Steel
• Technique: Hot Rolled
• Shape: Bar
• Surface Treatment: Blace/Polishing/Oiling or Galvanizing/ etc
• Model NO.: 1.5023 38Si7 38Si2 A11383
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Wear-Resistant Steel, Cold Heading Steel, Free-Cut
• Transport Package: Standard Seaworthy Export Packaging or as Required
• Specification: 3000-9000mm
• Trademark: meide
• Origin: Shandong, China
• HS Code: 84802000
• Production Capacity: 1000 Ton/Month

Product Description

About products

Alloy steel refers to the addition of other alloy elements in steel besides iron and carbon, which is called alloy steel. An iron-carbon alloy formed by adding an appropriate amount of one or more alloying elements on the basis of ordinary carbon steel. According to the different added elements and adopting appropriate processing technology, special properties such as high strength, high toughness, wear resistance, corrosion resistance, low temperature resistance, high temperature resistance and non-magnetism can be obtained.
The main alloying elements of alloy steel include silicon, manganese, chromium, nickel, molybdenum, tungsten, vanadium, titanium, niobium, zirconium, cobalt, aluminum, copper, boron, rare earth, etc.
Among them, vanadium, titanium, niobium and zirconium are strong carbide-forming elements in steel. As long as there is enough carbon, they can form their own carbides under appropriate conditions. When carbon is lacking or at high temperature, they enter the solid solution in atomic state; Manganese, chromium, tungsten and molybdenum are carbide-forming elements, one part of which enters the solid solution in atomic state, and the other part forms replacement alloy cementite; Aluminum, copper, nickel, cobalt, silicon and other elements do not form carbides and generally exist in solid solution in atomic state.

chemical composition

   

Grade	C	Si	Mn	Cr	Ni	Mo	P	S	Cu
							≤
20Mn2	0.17-0.24	0.17-0.37	1.40-1.80	≤0.30	≤0.30	≤0.10	0.030	0.030	0.30
SMn420	0.17-0.23	0.15-0.35	1.20-1.50	≤0.35	≤0.25		0.030	0.030	0.30
1524	0.19-0.25	0.15-0.30	1.35-1.65	-	-		0.040	0.050	0.20
22Mn6	0.18-0.25	0.10-0.40	1.30-1.65	≤0.40	≤0.40	≤0.10	0.025	0.035	0.30
18Mn5 1.0436	0.15-0.20	≤0.40	0.90-1.60	≤0.30	≤0.30	≤0.08	0.025	0.015	0.30
35Mn2	0.23-0.39	0.17-0.37	1.40-1.80	≤0.30	≤0.30	≤0.10	0.030	0.030	0.30
SMn438	0.35-0.41	0.15-0.35	1.35-0.65	≤0.35	≤0.25	-	0.030	0.030	0.30
1335	0.33-0.38	0.15-0.35	1.60-1.90	≤0.20	≤0.25	≤0.06	0.035	0.040	0.35
36Mn6	0.33-0.40	0.10-0.40	1.30-1.65	≤0.40	≤0.40	≤0.10	0.025	0.035	0.30
40Mn2	0.37-0.44	0.17-0.37	1.40-1.80	≤0.30	≤0.30	≤0.10	0.030	0.030	0.30
SMn443	0.40-0.46	0.15-0.35	1.35-1.65	≤0.35	≤0.25	-	0.030	0.030	0.30
1340	0.38-0.43	0.15-0.35	1.60-1.90	≤0.20	≤0.25	≤0.06	0.035	0.040	0.35
42Mn6	0.39-0.46	0.10-0.40	1.30-1.3	≤0.40	≤0.40	≤0.10	0.025	0.035	0.30
50Mn2	0.47-0.55	0.17-0.37	1.40-1.80	≤0.30	≤0.30	≤0.10	0.030	0.030	0.30
50Г2	0.46-0.55	0.17-0.37	1.40-1.80	≤0.30	≤0.30	-	0.035	0.035	0.30
20MnV	0.17-0.24	0.17-0.37	1.30-1.60	≤0.30	≤0.30	≤0.10	0.030	0.030	0.30
Grade A	≤0.10	0.30-0.65	0.80-1.25	0.40-0.65	≤0.40	0.08-0.15	0.030	0.030	0.25-0.40
19MnVS6	0.15-0.22	≤0.80	1.20-1.60	0.08-0.20	-	≤0.10	0.035	0.02-0.06	-
1.1301	0.15-0.22	0.15-0.80	1.20-1.60	≤0.30	0.08-0.20	≤0.08	0.025	0.02-0.06	-
35SiMn	0.32-0.40	1.10-1.40	1.10-1.40	≤0.30	≤0.30	≤0.10	0.030	0.030	0.30
35C Г	0.30-0.37	0.60-0.90	0.80-1.20	≤0.30	≤0.30	-	0.040	0.030	0.30
38Si7	0.35-0.42	1.50-1.80	0.50-0.80	-	-	-	0.030	0.030	-
1.5023	0.35-0.42	1.50-1.80	0.50-0.80	-	-	-	0.025	0.025	-

Product Description

Production Range	Outer Diameter:6-530mm (0.24 inch - 21.18 inch)
	Wall Thickness:0.8-200mm (0.03 inch - 7.89 inch)
Material / Grade	Carbon Steel: GB/T 3094: 10#, 20#, 35#, 45#, 55#, Q235B, Q235C, CF53, A105 ASTM A519: 1010, 1020, 1026, 1035, 1045, 1050 DIN17121/EN 10297-1, DIN1629/DIN2391/EN 10305-1: C10/CK10, C22/CK22, C35/CK35, C45/CK45, CF53 JIS3441/JIS3444/JIS3445: STKM11A, STKM12A/STKM12B/STKM12C, STKM13A/STKM13B/STKM13C JIS G4051: S10C, S20C, S25C, S35C, S45C, S55C
	Alloy Steel: GB/T 3094: 16Mn(Q345B), 20Cr, 40Cr, 15CrMo, 20CrMo, 28CrMo, 30CrMo, 35CrMo, 42CrMo, 20CrMnTi, 40MnMoV, 20Mn2, ZF6, 16MnCr5, 20MnCr5, 38Mn2V, 09CrCuSb(ND) ASTM A519: 5120, 5140, 4130, 4135, 4140 DIN17121/EN 10297-1, DIN1629/DIN2391/EN 10305-1: ST52, EN10084-1998 20Cr4, 41Cr4, 15CrMo4, 25CrMo4, 35CrMo4, 42CrMo4, 16MnCr5 JIS3441/JIS3444/JIS3445: SCM432/SCRRM3, SCM4 JIS G4053: JIS SCr420, JIS SCr440, SCM415, SCM420
Tolerance	Can be customized according to customer's requirements
Technique	Cold Drawn / Cold Rolled
Shape	Triangle, Hexagon, Square, Rectangle, Octagon, Lemon Pipe and Others can be customized
Further Processing for Steel Tubes	Cutting, Chamfer, Threading, Inner diameter or Outer Diameter Lathe, Surface Shot Blasting, Laser Marking

 

Features and applications

This is a kind of alloy quenched and tempered steel with better performance and more economy. The steel has good hardenability. The critical hardenability diameter in water is 24~47.5 mm, and in oil is 11~27.5 mm. After quenching and tempering, the steel has high strength and wear resistance, good toughness and labor resistance, good machinability, and medium cold deformation plasticity; However, the weldability is poor. During heat treatment, there is a tendency of temper brittleness, slight decarburization, white spots and overheating sensitivity. Compared with 40Cr steel, this steel has the same properties as the quenched and tempered parts with a section of less than 60mm, except that the impact value at low temperature (below - 20 ºC) is slightly lower. Used as medium speed and medium load parts; Or it can be used as parts with high load and little impact under quenching and tempering conditions, or as parts with large cross section and requiring surface quenching. In the general machinery industry, this steel is used to manufacture transmission gears, main shafts, mandrels, rotating shafts, connecting rods, worms, trolley shafts, generator shafts, crankshafts, flywheels and large and small forgings; In the manufacture of steam turbine, it is used as the main shaft and hub with working temperature below 400 ºC and diameter within 250mm, impeller with thickness below 170mm and various important fasteners; In agricultural machinery, it mainly manufactures wear-resistant parts such as hoe handle, plough shaft, etc. In addition, it can also be used as thin wall seamless steel pipe. This steel can completely replace 40Cr as quenched and tempered steel or partially replace 40CrNi steel in addition to requiring high impact toughness at low temperature (below - 20 ° C)

Mechanical properties

Sample diameter  d mm	Heat treatment or condition	tensile strength σb Mpa	Yield point σs Mpa	Elongation δ %	hardness HBW	Impact absorbed energy KV2 J	Reduction of area  ψ  %
d=25	Quenching+tempering	≥885	≥735	≥15	≤229	≥47	≥45

Packaging	1. by bundles, each bundle weight under 3 tons, for small outer diameter steel bars, each bundle with 4 - 8 steel strips. 2. after making by bundle, covered with Polyethylene waterproof cloth. 3. make black paints painting on each bar, then make bundles
20 feet container contains dimension	Length under 6000mm
40 feet container contains dimension	Length under 12000mm
By bulk vessel	Freight charge is low by bulk cargo, and large heavy sizes can not be loaded into containers can shipping by bulk cargo

FAQ

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 drawin