| Customization: | Available |
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| After-sales Service: | We Provide After-Sales Service |
| Warranty: | 2 Years |
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| Product introduction | ||||||||||||||||
| 42CrMo steel belongs to ultra-high strength steel, | ||||||||||||||||
| Properties of 42CrMo alloy steel: | 1. It has high strength and toughness and good hardenability. 2. No obvious temper brittleness, small deformation during quenching, 3. After quenching and tempering treatment, it has higher fatigue limit and multiple impact resistance. 4. Good impact toughness at low temperature and high creep strength and endurance strength at high temperature. |
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| 42CrMo alloy steel uses: | It is used to manufacture important parts with higher requirements or larger cross-sectional dimensions than 35CrMo steel, such as large gears for locomotive traction, supercharger transmission gears, rear axles, gearbox gears, engine cylinders, connecting rods under heavy load, spring clips, drill pipe joints and fishing tools for deep oil wells of 1200~2000m, etc. The steel is also suitable for manufacturing large and medium-sized plastic molds that require certain strength and toughness. | |||||||||||||||
| technical parameter | ||||||||||||||||
| typical | 42CrMo alloy steel | |||||||||||||||
| GB standard | GB-42CrMo | |||||||||||||||
| American Standard | ASTM/AISI-4140 | |||||||||||||||
| European standard | EN-42CrMo4 | |||||||||||||||
| Japan | JIS-SCM440 | |||||||||||||||
| German standard | DIN EN/DIN-42CrMo4 | |||||||||||||||
| France | NF EN/NF-42CD4 | |||||||||||||||
| Typical product | Engine cylinder, connecting rod with great load, | |||||||||||||||
| Content of chemical elements (%) | ||||||||||||||||
| ingredient | C | Si | Mn | P | S | Cr | Ni | Cu | Mo | |||||||
| minimum value | 0.38 | 0.17 | 0.5 | - | - | 0.9 | - | - | 0.15 | |||||||
| maximum | 0.45 | 0.37 | 0.8 | 0.035 | 0.035 | 1.2 | 0.3 | 0.3 | 0.25 | |||||||
| mechanical character | ||||||||||||||||
| Sample diameter d mm |
Heat treatment or condition | tensile strength σb Mpa |
yield limit σs Mpa |
Elongation after breaking or elongation δ % |
Section shrinkage ψ % |
hardness HBW |
Shock absorption energy KV2 J |
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| d=25 | Quenching+tempering | ≥1080 | ≥930 | ≥12 | ≥45 | ≤217 | ≥63 | |||||||||
| comparison table | ||||||||||||||||
| China | Taiwan, China | Japan | South Korea | United States of America | International organization for standards | Germany | France | France | Sweden | Sweden | ||||||
| GB | ISC | CNS | JIS | KS | ASTM/AISI | UNS | ISO | DIN EN/DIN | W-Nr. | NF EN/NF | EN | Sweden | SS14 | BS EN/BS | ||
| 42CrMo | A30422 | SCM440 | SCM440 SCM440H |
SCM440 | 4140 | G41400 | 42CrMo4 | 42CrMo4 | 1.7225 | 42CD4 | 42CrMo4 | 1.7225 | 2244 | 708M40 | ||
1. Who are we?
Our headquarters is located in Shandong, China. Since 2002, we have been selling to the domestic market (40.00%), Northern Europe (8.00%), North America (7.00%), the Middle East (7.00%), Africa (6.00%), South America (5.00%), Southeast Asia (5.00%), East Asia (5.00%), South Asia (5.00%), Eastern Europe (3.00%), Western Europe (3.00%), Central America (3.00%), Southern Europe (2.00%), and Oceania (1.00%). There are about 101-200 people in our office.
2. How do we guarantee quality?
Pre-production samples are always available before mass production;
Always carry out final inspection before shipment;
3. What can you buy from us?
Aluminum plate, aluminum coil, aluminum foil, carbon steel, alloy steel, stainless steel, copper galvanizing, etc
4. Why should you buy from us instead of other suppliers?
ZhongYe Metal Products (Shandong) Co., Ltd. is a leading manufacturer of aluminum products and carbon alloy materials in China, with more than 20 years of experience. More than 160 experienced workers use German brand processing equipment for production.
5. What services can we provide?
Accepted delivery conditions: FOB, CIF, FAS, DDP, express, DES;
Accepted payment currencies: US dollar, Australian dollar, Euro and RMB;
Payment types accepted: T/T, L/C, MoneyGram, credit card, PayPal, Western Union remittance, cash;
6. After-sales service: 24-hour online maintenance guidance service.
Language: English, Chinese Other.
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