| 15NiCr13 EN 10084-1998, Number: 1.5752 | Comparison of steel grades | |
| JUS | Č.5426 | |
| DIN | 14NiCr14 | |
| BS | (655M13), 655H13 | |
| GOST | G55H13, G55M13 | |
| AISI | E3310, 3415 | |
| UNI | - | |
| NF | 12NC15, 14NC12 | |
Under EN 10084-1998 standard, 15NiCr13 are widely using in high grade of cementation steel.They have higher intensity ,plastic , hardenability than 15Cr,20Cr.They mainly use to making the principal axis which have special request in high intensity,hardness, toughness and making the small axises which request to have high toughness in core or can bear impact burthen ,the apperance of wear-resistance,heat treatment ,straffs and all kinds of gears which are working in the high-speed and impact burthen ,adjust whorls,camshafts.
15NiCr13 steel sheet Chemical composition (cast analysis)
| Chemical elements | C | Si max | Mn | P max. | S | Cr | Ni | - |
| %, by mass | 0,14-0,20 | 0,40 | 0,40-0,70 | 0,035 | ≤ 0,035 | 0,60-0,90 | 3,00-3,50 | |
| Permissible deviation | ± 0,02 | + 0,03 | ± 0,04 | + 0,005 | + 0,005 | ± 0,05 | ± 0,07 | - |
| Hardness HRC at a distance from quenched end of test piece (in milimetres) of | ||||||||||||||||
| mm | 1,5 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | |
| +H | max. | 48 | 48 | 48 | 47 | 45 | 44 | 42 | 41 | 38 | 35 | 34 | 34 | 33 | - | - |
| min. | 41 | 41 | 41 | 40 | 38 | 36 | 33 | 30 | 24 | 22 | 22 | 21 | 21 | - | - | |
| +HH | max. | 48 | 48 | 48 | 47 | 45 | 44 | 42 | 41 | 38 | 35 | 34 | 34 | 33 | - | - |
| min. | 43 | 43 | 43 | 42 | 40 | 39 | 36 | 34 | 29 | 26 | 26 | 25 | 25 | - | - | |
| +HL | max. | 46 | 46 | 46 | 45 | 43 | 41 | 38 | 37 | 33 | 31 | 30 | 30 | 29 | - | - |
| min. | 41 | 41 | 41 | 40 | 38 | 36 | 33 | 30 | 24 | 22 | 22 | 21 | 21 | - | - | |
Hardness requirements for products delivered in the conditions ’’treated to improve shearabilita’’ (+S), ’’anneled to maximum hardness requirements’’ (+A), ’’treated to hardness range’’ (+TH) or ’’treated to ferrite-pearlite structure and hardness range’’ (+FP)
| Brinell hardness in the condition | ||||||
| +S max. | +A max. | +TH | +FP | |||
| min. | max. | min. | max. | |||
| 255 | 229 | 179 | 229 | 166 | 217 | |
Non-metallic inclusions Requirements for microscopic degree of purity when tested in accordance with DIN 50 602 (method K) (valid for oxidic non-metallic inclusions)
| D (mm) Bars Diameter d (mm) | K Total characteristic value K (oxides) for the individual cast |
| 140 < d 200 | K 4 ≤ 50 |
| 100 < d ≤ 140 | K 4 ≤ 45 |
| 70 < d ≤ 100 | K 4 ≤ 40 |
| 35 < d ≤ 70 | K 4 ≤ 35 |
| 17 < d ≤ 35 | K 3 ≤ 40 |
| 8 < d ≤ 17 | K 3 ≤ 30 |
| d ≤ 8 | K 2≤ 35 |
Conditions for heat treating test bars and treatment of the steels
| End quenchh test Quenching, 0C | Carbunnzing temperature, 0C | Core-hardening temperature, 0C | Case-hardening temperature, 0C | Tempering, 0C |
| 880 | 880 to 980 | 840 to 880 | 780 to 820 | 150 to 200 |
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Tags: 15NiCr13
