BS EN 10083-3-2006 淬硬钢和回火钢.第3部分硼钢的供货技术条件.pdf

BRITISH STANDARD BS EN 10083-3:2006 Steels for quenching and tempering Part 3: Technical delivery conditions for alloy steels The European Standard EN 10083-3:2006 has the status of a British Standard ICS 77.140.10 BS EN 10083-3:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2006 © BSI 2006 ISBN 0 580 49097 1 National foreword This British Standard is the official English language version of EN 10083-3:2006. It supersedes BS EN 10083-3:1996 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/31, Wrought steels, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 54, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments ÛËÎÑÐÛßÒ ÍÌßÒÜßÎÜ ÒÑÎÓÛ ÛËÎÑÐWÛÒÒÛ ÛËÎÑÐ×ÍÝØÛ ÒÑÎÓ ÛÒ ïððèíóí ß«¹«-¬ îððê ×ÝÍ ééòïìðòïðÍ«°»®-»¼»- ÛÒ ïððèíóíæïççë Û²¹´·-¸ Ê»®-·±² ͬ»»´- º±® ¯«»²½¸·²¹ ¿²¼ ¬»³°»®·²¹ ó ﮬ íæ Ì»½¸²·½¿´ ¼»´·ª»®§ ½±²¼·¬·±²- º±® ¿´´±§ -¬»»´- ß½·»®- °±«® ¬®»³°» »¬ ®»ª»²« ó ﮬ·» íæ ݱ²¼·¬·±²- ¬»½¸²·¯«»- ¼» ´·ª®¿·-±² ¼»- ¿½·»®- ¿´´·7- Ê»®¹$¬«²¹-¬¿¸´» ó Ì»·´ íæ Ì»½¸²·-½¸» Ô·»º»®¾»¼·²¹«²¹»² º$® ´»¹·»®¬» ͬ 1,00 1,70 0,05 P 0,025 + 0,005 S 0,040 + 0,005b Cr 2,00 0,05 2,00 2,20 0,10 Mo 0,30 0,03 0,30 0,60 0,04 Ni 2,00 0,05 2,00 4,3 0,07 V 0,25 0,02 B 0,0050 0,0003 a means that in one cast, the deviation may occur over the upper value or under the lower value of the specified range in Table 3, but not both at the same time. b For steels with a specified sulphur range of 0,020% to 0,040% according to cast analysis, the permissible deviation is 0,005%. EN 10083-3:2006 (E) 20 Table 7 Maximum hardness for products to be supplied in the “treated to improve shearability (+S)“ or “soft annealed (+A)“ condition Steel designationa Max. HBW in conditionb Name Number +S +A 38Cr2 1.7003 255 207 46Cr2 1.7006 255 223 34Cr4, 34CrS4 1.7033, 1.7037 255 223 37Cr4, 37CrS4 1.7034, 1.7038 255 235 41Cr4, 41CrS4 1.7035, 1.7039 255c 241 25CrMo4, 25CrMoS4 1.7218, 1.7213 255 212 34CrMo4, 34CrMoS4 1.7220, 1.7226 255c 223 42CrMo4, 42CrMoS4 1.7225, 1.7227 255c 241 50CrMo4 1.7228 -d 248 34CrNiMo6 1.6582 -d 248 30CrNiMo8 1.6580 -d 248 35NiCr6 1.5815 -d 223 36NiCrMo16 1.6773 -d 269 39NiCrMo3 1.6510 -d 240 30NiCrMo16-6 1.6747 -d 270 51CrV4 1.8159 -d 248 20MnB5 1.5530 -e -f 30MnB5 1.5531 -e -f 38MnB5 1.5532 -e -f 27MnCrB5-2 1.7182 -e -f 33MnCrB5-2 1.7185 255 -f 39MnCrB6-2 1.7189 255 -f a The values apply also for the steel with hardenability requirements (+H-, +HH- and +HL-grades) covered in Tables 5 and 6; see, however, footnote c. b The values are not applicable to slabs which have been continuously cast and not further deformed. c Depending on the chemical composition of the cast, and on the dimensions, particularly in the case of the +HH-grades, soft annealing may be necessary. d Where the shearability is of importance, this steel should be ordered in the “soft-annealed“ condition. e Shearable in the untreated condition. f Condition +A is not applicable for boron steels. EN 10083-3:2006 (E) 23 Table 9 Surface hardness of steels after flame or induction hardening Steel designation Surface hardness HRC min. Name Number 46Cr2 1.7006 54 37Cr4/37CrS4 1.7034/1.7038 51 41Cr4/41CrS4 1.7035/1.7039 53 42CrMo4/42CrMo4 1.7225/1.7227 53 50CrMo4 1.7228 58 a The above values apply for the condition existing after quenching and tempering and surface hardening according to the conditions given in Table 11 followed by stress relieving at 150°C to 180°C for about 1h, and they relate to cross-sections up to 100 mm diameter for the steels 46Cr2, 37Cr4/37CrS4 and 41Cr4/41CrS4, and up to 250 mm diameter for the steels 42CrMo4/42CrMoS4 and 50CrMo4. It should be noted that surface decarburization may lead to lower hardness values in the surface hardened zones. EN 10083-3:2006 (E) 27 Table 11 Heat treatment a Steel designationb Quenching c,d Quenchinge Temperingf End quench test Name Number °C agent °C °C 38Cr2 1.7003 830 to 870 Oil or water 540 to 680 850 5 46Cr2 1.7006 820 to 860 Oil or water 540 to 680 850 5 34Cr4 34CrS4 1.7033 1.7037 830 to 870 Water or oil 540 to 680 850 5 37Cr4 37CrS4 1.7034 1.7038 825 to 865 Oil or water 540 to 680 850 5 41Cr4 41CrS4 1.7035 1.7039 820 to 860 Oil or water 540 to 680 850 5 25CrMo4 25CrMoS4 1.7218 1.7213 840 to 900 Water or oil 540 to 680 850 5 34CrMo4 34CrMoS4 1.7220 1.7226 830 to 890 Oil or water 540 to 680 850 5 42CrMo4 42CrMoS4 1.7225 1.7227 820 to 880 Oil or water 540 to 680 850 5 50CrMo4 1.7228 820 to 870 Oil 540 to 680 850 5 34CrNiMo6 1.6582 830 to 860 Oil or water 540 to 660 850 5 30CrNiMo8 1.6580 830 to 860 Oil or water 540 to 660 850 5 35NiCr6 1.5815 840 to 860 Oil or water 530 to 630 850 5 36NiCrMo16 1.6773 865 to 885 Air, oil or water 550 to 650 850 5 39NiCrMo3 1.6510 830 to 850 Oil or water 550 to 650 850 5 30NiCrMo16-6 1.6747 840 to 860 Oil 540 to 630 850 5 51CrV4 1.8159 820 to 870 Oil 540 to 680 850 5 20MnB5 1.5530 880 to 920 Water 400 to 600 900 5 30MnB5 1.5531 860 to 900 Water 400 to 600 880 5 38MnB5 1.5532 840 to 880 Water or oil 400 to 600 850 5 27MnCrB5-2 1.7182 880 to 920 Water or oil 400 to 600 900 5 33MnCrB5-2 1.7185 860 to 900 Oil 400 to 600 880 5 39MnCrB6-2 1.7189 840 to 880 Oil 400 to 600 850 5 a The conditions given in this table are for guidance. However, the temperatures specified for the end quench test are mandatory. b This table also applies for the various grades with specified hardenability (+H-, +HH- and +HL grades) covered in Tables 5 and 6. c The temperatures at the lower end of the range are generally applicable to hardening in water and those at the upper end for hardening in oil. d Austenitizing period: at least 30 min (guide value). e When choosing the quenching agent the influence of other parameters, such as shape, dimensions and quenching temperature on properties and crack susceptibility should be taken into account. Other quenching agents such as synthetic quenchants may also be used. f Tempering period: at least 60 min (guide value). EN 10083-3:2006 (E) 28 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1a Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 29 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1b Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 30 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1c Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 31 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1d Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 32 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1e Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 33 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1f Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 34 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1g Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 35 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1h Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 36 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1i Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 37 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1j Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 38 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1k Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 39 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1l Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 40 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1m Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 41 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1n Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 42 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1o Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 43 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1p Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 44 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1q Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 45 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1r Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 46 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1s Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 47 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1t Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 48 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1u Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 49 Key X Distance from quenched end of test piece, mm Y Hardness, HRC 1 HH-grade 2 HL-grade 3 H-grade Figure 1v Scatter bands for the Rockwell - C hardness in the end quench hardenability test EN 10083-3:2006 (E) 50 Annex A (normative) Options NOTE 1 One or more of the following supplementary or special requirements may be agreed upon at the time of enquiry and order. The details of these requirements may be agreed upon between the manufacturer and purchaser at the time of enquiry and order if necessary. NOTE 2 The numbering of clauses is the same as in EN 10083-1:2006, annex B. A.1 Mechanical properties of reference test pieces in the quenched and tempered condition For deliveries in a condition other than quenched and tempered, the requirements for the mechanical properties in the quenched and tempered condition shall be verified on a reference test piece. In the case of bars and rods, the sample to be quenched and tempered shall, unless otherwise agreed, have the cross-section of the product. In all other cases the dimensions and the manufacture of the sample shall be agreed at the time of enquiry and order, where appropriate, while taking into consideration the indications for the determination of the ruling section given in EN 10083-1:2006, Annex A. The samples shall be quenched and tempered in accordance with the conditions given in Table 11 or as agreed at the time of enquiry and order. The details of the heat treatment shall be given in the inspection document. The test pieces shall, unless otherwise agreed, be taken in accordance with EN 10083-1:2006, Figure 1 for bars and rods and in accordance with EN 10083-1:2006, Figure 3 for flat products. A.2Fine grain steel This supplementary requirement concerns only the verification of the fine grain size. When tested in accordance with EN ISO 643, the steel shall have an austenite grain size of 5 or finer. If specific testing is ordered, it shall also be agreed whether this grain size requirement is to be verified by determining the aluminium content or micrographically. In the first case, the aluminium content shall also be agreed. In the second case, one test piece shall be inspected per cast for the determination of the austenitic grain size. Sampling and sample preparation shall be as specified in EN ISO 643. Unless otherwise agreed at the time of enquiry and order, the quenched grain size shall be determined. Hardening shall be carried out under the following conditions for the purposes of determining the quenched grain size: for steels with a lower carbon content limit 0,35 % : (880 ± 10) °C, 90 min/water; for steels with a lower carbon content limit 0,35 % : (850 ± 10) °C, 90 min/water. In cases of dispute, pretreatment at 1 150 °C for 30 min/air shall be carried out in order to produce a uniform starting condition. A.3 Non-metallic inclusion content The microscopically determined non-metallic inclusion content shall be within agreed limits when tested according to a procedure to be agreed at the time of enquiry and order (see EN 10083-1:2006, Annex E). NOTE 1 The requirements for non metallic inclusion content apply in every case, however, verification requires a special agreement. EN 10083-3:2006 (E) 51 NOTE 2 For steels w