| Customization: | Available |
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| After-sales Service: | Support |
| Warranty: | Lifetime Warranty |
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DIN1.6660, 20NiCrMo13-4 Case Hardening Steel (BS EN 10084)
Similar Grade:DIN1.6660, 20NiCrMo13-4
Standard: EN10084 (Technical delivery conditions for Alloy steels in the case hardened condition)
Chemical Composition:
| Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
| 1.6660 | 0.17- 0.22 |
0.40 max |
0.30- 0.60 |
0.025 max |
0.035 max |
0.80- 1.20 |
0.30- 0.50 |
3.0- 3.50 |
Specification
| Size | Round | Dia 6-1200mm |
| Plate/Flat/Block | Thickness 6mm-500mm |
|
| Width 20mm-1000mm |
||
| Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
| Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | |
| Delivery condition | Forged; Hot rolled; Cold drawn | |
| Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | |
| Payment terms | T/T;L/C;/Money gram/ Paypal | |
| Trade terms | FOB; CIF; CNF | |
| Delivery time | 20-25 days | |
| Application | Structural parts of medium and large cross sections and high surface hardness, e.g., valve and gate valves, cylinders for combustion engines, superheated steam valves and fittings. | |
| Process | Hardness |
|---|---|
| treated to improve shearability | 277HB max |
| soft annealed | 255HB max |
| treated to hardness range | 207HB-255HB |
| treated to ferrite-pearlite structure and hardness range | 197HB-241HB |
| Process | Temperatures (oC) |
|---|---|
| End quench test | 850 |
| Carburizing | 880-980 |
| Core-hardening | 825-880 |
| Case-hardening | 800-850 |
| Tempering | 150-250 |
| COLD WORK TOOL STEEL | |||||
| Grade | AISI /ASTM | DIN (W.Nr) | JIS | EN/ BS | GB |
| DC53 | higher than D2 | SKD11 | XW-5 | Cr8Mo2Vsi | |
| D2 | D2 | 1.2379 | SKD11 | BD2 | CR12MO1V1 |
| Cr12MoV | CR12MOV | ||||
| D3 | D3 | 1.2080 | SKD1 | BD3 | CR12 |
| O1 | O1 | 1.2510 | SKS3 | 9CRWMN | |
| HMD5 | HMD5 | 7CrSiMnMoV | |||
| 5CrNiMo | L6 | 55NiCrMoV6 | SKT4 | 5CrNiMo | |
| 52100 | 52100 | 1.3505 | EN31 | GCR15 | |
| HOT WORK TOOL STEEL | |||||
| H13 | H13 | 1.2344/1.2342 | SKD61/DAC | 8407 | 4CR5MOSIV1 |
| FDAC | 1.2347 | FDAC | FDAC | ||
| H11 | H11 | 1.2343 | SKD6 | H11 | |
| 3Cr2W8V | H21 | 1.2581/ X30WCrV93 | SKD5 | BH21 | 3CR2W8V |
| PLASTIC MOULD STEEL | |||||
| P20 | P20 | 1.2311 | HPM7/PX88 | 618 | 3CR2MO |
| 718 | P20+NI | 1.2738 | PX4/PX5 | 718 | 3CR2NIMO |
| S136 | 420 | 1.2083 | S-STAR | S136 | 4CR13 |
| NAK80 | P21 /P20+S | 1.2312 | NAK80 | 15NI3MN | |
| HIGH SPEED STEEL | |||||
| M2 | M2 | SKH51 | W6MO5CR4V2 | ||
| M42 | M42 | S2-10-1-8 | SKH59 | W2MO9CR4VCO8 | |
| 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 | |||||
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