| 17Cr3 EN 10084-1998, Number: 1.7016 | Comparison of steel grades | |
| JUS | - | |
| DIN 17210 | 17Cr3 | |
| BS 970 | 527M17 | |
| GOST | - | |
| AISI | - | |
| UNI | ||
| NF | - | |
Under EN 10084-1998 standard,High strength and 17Cr3 steel hardenability, toughness is poor; welding is good, generally do not need heat treatment after welding. Ministry for the center and surface strength requirements to withstand high wear, large size, or shape of the load is not more complex carburizing parts such as gears, gear shafts, cam, piston pin, worm, also used as work withstand the impact of large and medium-velocity load conditioning parts.
17Cr3 steel plate Chemical composition (cast analysis)
| Chemical elements | C | Si max. |
Mn | P max. | S | Cr |
| %, by mass | 0,14-0,20 | 0,40 | 0,60-0,90 | 0,035 | ≤ 0,035 | 0,70 – 1,00 |
| Permissible deviation | ± 0,02 | + 0,03 | ± 0,04 | + 0,005 | + 0,005 | ± 0,05 |
Hardness limits for steel
| 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. | 47 | 44 | 40 | 33 | 29 | 27 | 25 | 24 | 23 | 21 | - | - | - | - | - |
| min. | 39 | 35 | 25 | 20 | - | - | - | - | - | - | - | - | - | - | - | |
| +HH | max. | 47 | 44 | 40 | 33 | 29 | 27 | 25 | 24 | 23 | 21 | - | - | - | - | - |
| min. | 42 | 38 | 30 | 24 | 20 | - | - | - | - | - | - | - | - | - | - | |
| +HL | max. | 44 | 41 | 35 | 29 | 25 | 23 | 21 | 20 | - | - | - | - | - | - | - |
| min. | 39 | 35 | 25 | 20 | - | - | - | - | - | - | - | - | - | - | - | |
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 inn the condition | ||||||
| +S max. | +A max. | +TH | +FP | |||
| min. | max. | min. | max. | |||
| * | 174 | - | - | - | - | |
Non-metallic inclusions Requirements for microscopic degree of purity when tested in accordance with DIN 50 602 (method K) (valid for oxid 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 (Temperatura kaljenja ) |
Carbunnzing temperature, 0C (Temperatura naugljeničavanja) |
Core-hardening temperature, 0C (Temperatura kaljenja jezgra) |
Case-hardening temperature, 0C (Temperatura kaljenja površine) |
Tempering, 0C (Otpuštanje) |
| 880 | 880 to 980 | 860 to 900 | 780 to 820 | 150 to 200 |
Source:
Tags: 17Cr3
