Used for Making Wear-Resistant Parts/30crnimo8 1.6580 30Cr2Ni2Mo Sncm431 Round Steel/5130 Steel Bar/28cr4/1.7033 Alloy 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.: 30CrNiMo8 1.6580 30Cr2Ni2Mo SNCM431 28Cr4/1.7033
• 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

SNCM431/30CrNiMo8/1.6580/30Cr2Ni2Mo is a kind of alloy structural steel, special steel and high quality alloy steel. It is made by adding several alloy elements on the basis of high quality carbon structural steel. Used as quenched and tempered parts requiring high strength, high toughness, large section size and more important, such as transmission eccentric shaft of horizontal forging machine, forging press Crankshaft, etc.

chemical composition

   

SNCM431/30CrNiMo8/1.6580/30Cr2Ni2Mo
C	Si	Mn	P	S	Cr	Ni	Mo	Cu
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

Approximate comparison table

GB	ISC	JIS	ISO	DIN EN/DIN	W-Nr.	EN	digital grade	DIN EN/DIN	W-Nr.
30Cr2Ni2Mo	A50300	SNCM431	30CrNiMo8	30CrNiMo8	1.6580	30CrNiMo8	1.6580	51CrV4	1.8159

Product Description

Category	Grade	Diameter
High speed steel	6542,M2,M35,M42	1mm-600mm
Mold steel	Cr12,Cr12MoV,Cr12Mo1V1,D2,SKD11,DC53	1mm-600mm
Carbon structure steel	Q195, Q215, Q235, Q275	1mm-600mm
Low alloy high strength structure steel	Q295, Q345, Q390, Q420, Q460	1mm-600mm
Prime Carbon structure steel	10#, 20#, 35#, 45#, 60#, 20Mn, 65Mn, B2, B3, JM20, SH45,S45C, C45	1mm-600mm
Alloy structure steel	30Mn2, 40Mn2, 27SiMn, 42Crmo,20Cr, 40Cr, 20CrMo, 35CrMo, 20CrMnTi, 30CrMnTi,20MnVB, 20MnTiB, 20CrNiMo, Q345B, 35MnBM,40MnB,36Mn2V, 45MnV,	1mm-600mm
Spring Steel	65Mn, 60Si2Mn, 50CrVA	1mm-600mm
Bearing Steel	GCr15, GCr15GD,55SiMoV	1mm-600mm
Structural steels subject to end-quench hardenability requirements	20CrMnTi, 30CrMnTi, 20Cr, 40Cr, 30CrMo, 42CrMoA, 27SiMn, 40Mn2H, 20CrNiMo, 40Mn2, q345b, 35MnBM, 40MnB,45MnV.	1mm-600mm

 

Mechanical properties

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. For steel bars with nominal size greater than 80~100mm, the elongation after fracture, reduction of area and impact absorption energy are allowed to be reduced by 1% (absolute value), 5% (absolute value) and 5% respectively compared with those specified in the table
2. For steel bars with nominal size greater than 100~150mm, the elongation after fracture, reduction of area and impact absorption energy are allowed to be reduced by 2% (absolute value), 10% (absolute value) and 10% respectively compared with those specified in the table
3. For steel bars with nominal size greater than 150~250mm, the elongation after fracture, reduction of area and impact absorption energy are allowed to be reduced by 3% (absolute value), 15% (absolute value) and 15% respectively compared with those specified in the table
4. It is allowed to take samples after forging (rolling) the sample blank into a section of 70mm~80mm, and the inspection results shall comply with the provisions in the table 2. The hardness in the table is the Brinell hardness value of the steel in the supply state of annealing or high-temperature tempering 3. The impact absorbed energy in the table is the U-notch impact test value Heat treatment system: Quenching temperature 850 ° C, oil cooling; Tempering temperature 520 ° C, water and oil cooling.

Application

 

Due to its high hardness, 30CrNiMo8 is often used to produce high-end mechanical parts. In addition to manufacturing screws, mechanical arms, pistons, shafts and shafts, 30CrNiMo8 can also be used to manufacture mechanical parts. Due to its alloy steel content, 30CrNiMo8 can achieve high tensile strength. High temperature can be used to process 30CrNiMo8. In general, 30CrNiMo8 material is used for products with large wear. The oil and gas industry, aviation, mechanical engineering, chemical industry and shipbuilding industry all deal with corrosion problems, making 30CrNiMo8 a very useful material.

Product Parameters

 

GRADE	SIZE(MM)	GRADE	SIZE(MM)
8#-10#	∮16-290	65Mn	∮40-300
15#	∮14-150	45Mn2	∮18-75
20#	∮8-480	60Si2Mn	∮16-150
35#	∮8-480	20CrMnTi	∮10-480
45#	∮6.5-480	20crmnTiB	∮16-75
Q235B	∮6.5-180	GCr15	∮16-400
40Cr	∮8-480	ML35	∮8-150
20Cr	∮10-480	T8-T13	∮8-480
42CrMo	∮12-480	Cr12	∮16-300
35CrMo	∮12-480	Cr12MoV	∮16-300
20CrMo	∮12-300	3Cr2W8V	∮16-300
38CrMoAL	∮20-300	45Cr50Cr	∮20-300
5CrMnMo	∮20-450	20CrMnMo	∮20-300
16Mn(Q345B)	∮14-365	40Mn2	∮28-60
50Mn	∮40-200	35Cr	∮55
15CrMo	∮20-75	15Mn	∮32∮170
25#	∮16-280	40CrMnMo	∮80-∮160
YF45MnV	∮28-80	20CrMnMo	∮20-300
30#	∮6.5-480	27 SiMn	∮20-350
30Crmo	∮28	Crwmn	∮20-300
30CrmnTi	∮16-300	H13(4Cr5MoSiVi)	∮20-300
60#	∮210.∮260	40crNimo	∮20-400

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