4130 Scm420/Scm 430 1.7218 25crmo4 30crmn 4130 Hot Rolled /Forged Special Alloy Steel Round Bar/Rod

• Type: Alloy Steel Bar
• 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
• Model NO.: 4130 SCM420/430 1.7218 25CrMo4 30CrMn 4130
• Special Use: Mold Steel
• Transport Package: Standard Packaging or Customized
• Specification: 100-12000mm
• Trademark: meide
• Origin: Shandong, China
• HS Code: 72141000
• Production Capacity: 1000 Ton/Month

Product Description

Introduction

The main alloy 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, zirconium, etc. are strong carbide forming elements in steel. As long as there is enough carbon, they can form their own carbides under appropriate conditions. When there is no carbon or under high temperature conditions, they enter the solid solution as atoms; 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, etc. are elements that do not form carbides and generally exist in the solid solution in an 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
30CrMo	0.26-0.33	0.17-0.37	0.40-0.70	0.80-1.10	≤0.30	0.15-0.25	0.030	0.030	0.30
30XM	0.25-0.34	0.17-0.37	0.40-0.70	0.80-1.10	≤0.30	0.15-0.25	0.035	0.035	0.30
SCM430	0.28-0.33	0.15-0.35	0.60-0.90	0.90-1.20	≤0.25	0.15-0.30	0.030	0.030	0.30
4130	0.28-0.33	0.15-0.35	0.40-0.60	0.80-1.10		0.15-0.25	0.040	0.040	-

Product Description

Product Overviews
Steel products	round	Diameter 16mm - 1200mm
	plate/flat /block	Thickness  6mm-800mm
		Width 20mm-1500mm
Heat treatment	Normalized ; Annealed ; Quenched and Tempered, pre-hardened
Surface Condition	Black/ Peeled/ Polished/Machined /Grinded/Turned, Bright surface
Delivery Condition	hot  rolled ; hot forged ; cold drawn
Quality gurantee	Each heat ladle test chemistry,and finish products test chemistry; Ultrasonic test Sep 1921-84 class3 D/d, or ISO EN10228-4 class3. keep good grain sizes, do non-metalic test follow ASTM E45.
Payment Terms	T/T;L/C;DP; DA
Delivery time	30days
Trade Terms	FOB; CFR; CIF

Mechanical properties

Product form	Heat treatment or condition	Hardness  HBW
Hot rolled steel plate (Baosteel)	hot-rolling	HV ≤300
	annealing	HV ≤180
	Water quenching 800~880 ºC	HRC ≥47
	Oil quenching 830-890 ºC	HRC ≥45

 

Features and applications

4130 material is widely used in wellhead equipment and Christmas tree equipment because of its high strength, good low-temperature impact performance, resistance to hydrogen sulfide acid medium stress corrosion, and high cost performance. It is used to make shafts, gears, connectors and structural parts of mining machinery, engineering machinery, petroleum machinery, hydraulic pressure, machine tools, automobiles, lifting equipment, etc. It can be used to manufacture flared tee pipe joint, flared pipe joint sleeve, self-locking nut and other fasteners

 

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 drawing