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91. 发明公开

EP1705265A1 SURFACE ADJUSTMENT TREATMENT PRIOR TO CHEMICAL TREATMENT OF STEEL PRODUCT 失效转让
标题翻译： OBERFLÄCHENEINSTELLUNGSBEHANDLUNGVOR DER CHEMISCHEN BEHANDLUNG EINES STAHLPRODUKTS
公开(公告)号：EP1705265A1
公开(公告)日：2006-09-27
申请号：EP04819957.4
申请日：2004-12-06
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： IZAWA, Masaru, c/o SUMITOMO METAL INDUSTRIES, LTD , GOTO, Kunio, c/o SUMITOMO METAL INDUSTRIES, LTD , UJITA, Y., c/o SUMITOMO METAL INDUSTRIES, LTD , TAKANO, T., c/o SUMITOMO METAL INDUSTRIES, LTD
IPC分类号： C23C22/78 , C23C22/18
CPC分类号： F16L15/001 , C23C22/78 , F16L58/182
摘要： By subjecting a threaded joint for OCTG (oil country tubular goods) to surface conditioning with an aqueous solution of potassium tetraborate or sodium tetraborate prior to manganese phosphate chemical conversion treatment, a manganese phosphate chemical conversion coating having coarse crystal grains with an average crystal grain diameter of 10 - 110 micrometers is formed on the surface of the steel member which may be any steel including a high Cr steel. This manganese phosphate chemical conversion coating can hold a large amount of a liquid lubricant, and it is effective at preventing the occurrence of galling at the time of makeup of a threaded joint for OCTG.
摘要翻译：在进行磷酸锰化学转化处理之前，通过将OCTG（油料管状物品）的螺纹接头用四硼酸钾或四硼酸钠水溶液进行表面调理，将具有平均晶粒直径的粗晶粒的磷酸锰化学转化膜在钢构件的表面上形成10-110微米，其可以是包括高Cr钢的任何钢。该磷酸锰化学转化涂层可以容纳大量的液体润滑剂，并且有效地防止在组合用于OCTG的螺纹接头时发生磨损。

92. 发明公开

EP1698501A1 METAL PIPE FOR REINFORCING CAR BODY AND MEMBER FOR REINFORCING CAR BODY EMPLOYING IT 有权转让
标题翻译：某轿车的车身走强与本次发病四肢金属管加固车身
公开(公告)号：EP1698501A1
公开(公告)日：2006-09-06
申请号：EP04807194.8
申请日：2004-12-16
申请人： SUMITOMO METAL INDUSTRIES, LTD. , H-One Co., Ltd. , Sumitomo Pipe & Tube Co., Ltd.
发明人： UCHIDA, Mitsutoshi, Sumitomo Metal Industries, Ltd , MOROI, Kenji, c/o H-ONE CO., LTD. , HATTORI, Yoshitaka, c/o H-ONE CO., LTD. , IINO, Yoshikatsu, c/o H-ONE CO., LTD. , INOUE, Saburo, c/o Sumitomo Pipe & Tube Co., Ltd. , KIKUCHI, Fumihiko, c/o Sumitomo Pipe & Tube Co Ltd
IPC分类号： B60J5/00
CPC分类号： B60J5/0431 , B21C37/155 , B60J5/0433 , B60J5/0444 , C21D1/42 , C21D7/13 , C21D8/10 , C21D8/105 , C21D9/0068 , C21D9/085 , Y02P10/253 , Y10T29/49622
摘要： A metal tube for reinforcing car body, and a car body reinforcement according to the invention have a curved portion extending over the entire longitudinal length or a local longitudinal length, wherein, when the reinforcement is assembled such that the outer periphery of the curved portion is aligned substantially in the direction of impact applied to the car body, the load ramp gradient, the maximum load and the absorbed energy are all enhanced in case of a car body collision. Particularly, an increase in the load ramp gradient as for the load property at the start of deformation provides an excellent crash capacity in reinforcing the car body. Moreover, the metal tube and the reinforcement according to the invention are capable of satisfying the current requirements for much more crash capacity of the car body, along with both a weight reduction of the car body and a reduced manufacturing cost, and therefore they are applicable in a wide field for protecting occupants in an automobile.
摘要翻译：的金属管用于加强车身和汽车车身加强雅丁发明具有弯曲部分延伸在整个纵向长度或局部纵向长度，worin，当被组装检查加强做了弯曲部的外周是在施加于车体的冲击方向大致对齐，负载斜坡梯度，最高载荷和吸收能都在车体碰撞的情况下提高。特别是，以增加负载斜坡梯度为在变形开始时的负荷特性提供了在加强车体优异的碰撞能力。更完了，在金属管和所述加强雅丁发明能够满足目前的需求为车体的更碰撞能力，非常久远两者的重量减轻车体的和降低的制造成本，因此，它们都适用在保护乘员在汽车上的广泛的领域。

93. 发明公开

EP1676651A1 METHOD AND DEVICE FOR ADJUSTING SCREW-DOWN LOCATION OF ROLLING ROLL FORMING THREE-ROLL MANDREL MILL 有权
标题翻译：方法和设备用于设置FESTSCHRAUBPOSITION三辊DORNSTANGEN- WALZWERK下辊
公开(公告)号：EP1676651A1
公开(公告)日：2006-07-05
申请号：EP04792074.9
申请日：2004-10-06
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： YAMANE, Akihito, c/o Sumitomo Metal Industries Ltd
IPC分类号： B21B17/02 , B21B37/78
CPC分类号： B21B17/02 , B21B17/04 , B21B37/78 , B21B38/04
摘要： According to a method and an apparatus of the present invention for adjusting the rolling positions of the rolling rolls constituting a three-roll mandrel mill, a wall thickness of a rolled material is measured at a position corresponding to a groove bottom portion of each rolling roll, a deviation between each measured wall thickness and a target wall thickness determined by a rolling schedule is computed, and the rolling position of each rolling roll is adjusted based on each computed deviation. Therefore, the rolling position can properly be adjusted. The wall thickness of the rolled material is also measured at both positions corresponding to portions extended toward both flange portion sides from the groove bottom portions of the rolling rolls, and the rolling position of each rolling roll is adjusted based on the deviation between both measured values. Therefore, even if the rolling position of each rolling roll is considered to be apparently proper, actually the rolling position can be properly adjusted. Accordingly, the method and the apparatus of the present invention are widely adopted as means for adjusting the rolling positions of the rolling rolls constituting the three-roll mandrel mill.
摘要翻译：。根据用于调整构成三辊芯棒式无缝管轧机的轧制辊的压下位置的方法和辊到本发明的装置中，轧制材料的壁厚在对应于每个滚动的槽底部的位置处测得的，每个测量的壁厚和通过的轧制制度开采的目标壁厚确定性之间的偏差被计算，并且各轧辊的轧制位置基于每个计算的偏差进行调整。因此，滚动位置可适当调整。因此，轧制材料的壁厚是在这两个位置对应于部分测量朝向这两个凸缘部侧延伸从槽轧辊的底部部分，并且各轧辊的轧制位置是基于这两个测量值之间的偏差来调整，因此，即使每个轧辊的轧制位置被认为是明显正确的，实际上滚动位置可适当调整。因此，该方法和本发明的装置的广泛采用作为用于调整构成三辊芯棒式无缝管轧机轧制辊的压下位置。

94. 发明公开

EP1666576A1 LUBRICANT COMPOSITION FOR SEAMLESS STEEL PIPE WORKING 有权转让
标题翻译： SCHMIERMITTELZUSAMMENSETZUNG ZUR BEARBEITUNG VON NAHTLOSEN STAHLROHREN
公开(公告)号：EP1666576A1
公开(公告)日：2006-06-07
申请号：EP04772782.1
申请日：2004-09-03
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： Tanaka, Kazuo PALACE CHEMICAL CO., LTD. , Mori, Shizuo PALACE CHEMICAL CO., LTD. , Iida, Sumio SUMITOMO METAL INDUSTRIES, LTD.
IPC分类号： C10M171/02 , C10M173/02 , B21B25/04 , C10M103/00 , C10M103/06 , C10M145/40 , C10N10/02 , C10N20/02 , C10N30/00 , C10N30/06 , C10N40/24 , C10N50/02
CPC分类号： C10M171/00 , B21B25/04 , B21B45/0242 , B21B2045/026 , C10M173/02 , C10M2201/062 , C10M2201/0623 , C10M2201/087 , C10M2201/103 , C10M2201/1033 , C10M2209/084 , C10M2209/12 , C10N2210/01 , C10N2210/02 , C10N2220/082 , C10N2240/403 , C10N2240/409 , C10N2250/121
摘要： Provided is a lubricant composition for seamless steel pipes or tubes working which totally satisfies various properties, such as storage stability, transferability inside an apparatus tube, sprayability to lubricated sites, and property of uniform adhesion to a high-temperature mandrel bar without losing non-carburizability or excellent lubricity to hard-to-work materials suchas 13 chromiumsteel and stainless steel. Prepared is a lubricant composition which has a viscosity property represented by the following approximate expression: . Y = a·X b wherein Y: viscosity (mPa·s),x: shear rate (s -1 ) ; and a: 4000 to 40000 and b: -1.0 to -0.3 while the lubricant composition is stored to be kept still, and a: 1000 to 20000, and b: -1.0 to -0.15 after 90 seconds from the time when shearing a lubricant composition is finished.
摘要翻译：本发明提供一种无缝钢管或管加工用润滑剂组合物，其完全满足储存稳定性，设备管内的转印性，对润滑部位的喷雾性，以及对高温芯棒的均匀粘合性等的各种性能，可渗碳性或优异的润滑性，可用于13种铬钢和不锈钢等难加工材料。制备具有由以下近似表达式表示的粘度性质的润滑剂组合物。 Y = a·X b其中Y：粘度（mPa·s），x：剪切速率（s -1）; a：4000〜40000，b：-1.0〜-0.3，润滑剂组合物保存时保持静止，a：剪切润滑剂90秒后的：1000〜20000，b：-1.0〜-0.15 组合完成

95. 发明公开

EP1652950A1 MARTENSITIC STAINLESS STEEL 有权
标题翻译：马氏体不锈钢
公开(公告)号：EP1652950A1
公开(公告)日：2006-05-03
申请号：EP04748013.2
申请日：2004-07-22
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： KONDO, Kunio, Sumitomo Metal Industries, Ltd. , AMAYA, Hisashi, Sumitomo Metal Industries, Ltd.
IPC分类号： C22C38/00 , C22C38/58
CPC分类号： C22C38/42 , C22C38/02 , C22C38/04 , C22C38/44
摘要： A martensitic stainless steel having a resistance to sulfide stress corrosion cracking superior to Super 13 Cr steel and having a strength and corrosion resistance comparable to dual phase stainless steels has a chemical composition consisting essentially of, in mass %, C: 0.001 - 0.1%, Si: 0.05 - 1.0%, Mn: 0.05 - 2.0%, P: at most 0.025%, S: at most 0.010%, Cr: 11 - 18%, Ni: 1.5 - 10%, sol. Al: 0.001 - 0.1%, N: at most 0.1%, O: at most 0.01%, Cu: 0 - 5%, solid solution Mo: 3.5 - 7%, the composition satisfying the following Equation (1), optionally at least one element selected from at least one of the following Groups A - C, and a remainder of Fe and impurities and undissolved Mo, if undissolved Mo is present. Equation ( 1 ) : Ni-bal . = 30 ( C + N ) + 0.5 ( Mn + Cu ) + Ni + 8.2 − 1.1 ( Cr + Mo + 1.5 Si ) ≥ − 4.5

Group A - W: 0.2 - 5%
Group B - V: 0.001 - 0.50%, Nb: 0.001 - 0.50%, Ti: 0.001 - 0.50%, and Zr: 0.001 -0.50%
Group C - Ca: 0.0005 - 0.05%, Mg: 0.0005 - 0.05%, REM: 0.0005 - 0.05%, and B: 0.0001 - 0.01%
摘要翻译：具有优于Super 13Cr钢并且具有与双相不锈钢相当的强度和耐腐蚀性的耐硫化物应力腐蚀裂纹的马氏体不锈钢具有化学组成，其基本上由以质量％计的C：0.001-0.1％， Si：0.05〜1.0％，Mn：0.05〜2.0％，P：0.025％以下，S：0.010％以下，Cr：11〜18％，Ni：1.5〜10％ Al：0.001〜0.1％，N：0.1％以下，O：0.01％以下，Cu：0〜5％，固溶Mo：3.5〜7％，满足下述式（1）如果存在未溶解的Mo，则选自下列A-C组中的至少一种的一种元素和剩余的Fe和杂质以及未溶解的Mo。公式（1）：Ni-bal。= 30（C + N）+0.5（Mn + Cu）+ Ni + 8.2-1.1（Cr + Mo + 1.5Si）≥-4.5组A-W：0.2-5％ B-V：0.001-0.50％，Nb：0.001-0.50％，Ti：0.001-0.50％和Zr：0.001-0.50％C-Ca：0.0005-0.05％，Mg：0.0005-0.05％，REM：0.0005 - 0.05％，B：0.0001-0.01％

96. 发明公开

EP1650466A1 IMPACT-ABSORBING MEMBER 有权转让
标题翻译： AUFPRALLAUFNAHMEGLIED
公开(公告)号：EP1650466A1
公开(公告)日：2006-04-26
申请号：EP04771162.7
申请日：2004-07-28
申请人： SUMITOMO METAL INDUSTRIES, LTD. , Toyoda Iron Works Co., Ltd.
发明人： TAMURA, Kenji, Sumitomo Metal Industries, Ltd. , NAKAZAWA, Yoshiaki, Sumitomo Metal Industries, Ltd , YOSHIDA, Michitaka, Sumitomo Metal Industries, Ltd , TAKAGI, Katsutoshi, Toyoda Iron Works Co., Ltd. , KANO, Mitsutoshi, Toyoda Iron Works Co., Ltd.
IPC分类号： F16F7/12
CPC分类号： F16F7/123 , F16F7/12
摘要： A crash energy absorption member is provided which has excellent crash energy absorbing properties with the ability of repeated buckling in a stable manner, a high average load at the time of collapse, and the maximum load which is within a range which does not break other members.
It is a crash energy absorption member which preferably has a transverse cross-sectional shape of an octagon and which is intended for absorbing impact energy by buckling in the lengthwise direction into a shape of bellows when it receives an impact load. With respect to at least one side forming the transverse cross-sectional shape, when the angle formed by the two sides which adjoin the opposing ends of the one side is α, the relationship between the length L1 of the one side and the distance L2 between the two furthest ends of the two sides interposing the one side satisfies the following equation: 0 L 1 / L 2 1 / { 2 × sin ( α / 2 ) + 1 } .
摘要翻译：提供了一种碰撞能量吸收构件，其具有优异的碰撞能量吸收特性，具有以稳定的方式反复屈曲的能力，塌陷时的高平均载荷，以及不破坏其他构件的范围内的最大载荷。它是碰撞能量吸收构件，其优选地具有八边形的横截面形状，并且其用于通过在受到冲击载荷时沿长度方向弯曲成波纹形状而吸收冲击能量。关于形成横截面形状的至少一个侧面，当由与一侧的相对端相邻的两侧形成的角度为±时，一侧的长度L1与距离L2b之间的关系 0

97. 发明公开

EP1642991A1 METHOD FOR HOT FORMING AND HOT FORMED MEMBER 有权转让
标题翻译： VERFAHREN ZUM WARMUMFORMEN UND WARMUMGEFORMTES ELEMENT
公开(公告)号：EP1642991A1
公开(公告)日：2006-04-05
申请号：EP04735124.2
申请日：2004-05-27
申请人： SUMITOMO METAL INDUSTRIES, LTD. , Toyota Jidosha Kabushiki Kaisha , Toyoda Iron Works Co., Ltd.
发明人： NISHIBATA, Toshinobuo, Sumitomo Metal Indust. Ltd , NAKATA, Masahiro, Sumitomo Metal Indust. Ltd , SUDO, Shuntaro, Toyota Jidosha Kabushiki Kaisha , OBAYASHI, Akira, Toyoda Iron Works Co., Ltd. , ICHIKAWA, Masanobu, Toyoda Iron Works Co., Ltd.
IPC分类号： C22C38/00 , C22C38/58 , B21D5/01 , B21D22/20 , C21D1/02
CPC分类号： C22C38/28 , C21D1/02 , C21D1/19 , C21D7/13 , C22C38/02 , C22C38/04 , C22C38/38 , C22C38/42
摘要： A hot press-formed member having stable strength and toughness is manufactured from a high strength steel sheet by hot press forming. In the cooling stage during hot press forming, the cooling rate is at least the critical cooling rate until the Ms point is reached and it is then in the range of 25 - 150 °C/s in the temperature range from the Ms point to 200 °C. The Vickers hardness of the hot pressed member is less than the value of (maximum quenching hardness - 10) and at least the value of (maximum quenching hardness - 100).
摘要翻译：通过热压成型由高强度钢板制造具有稳定的强度和韧性的热压成形构件。在热压成型期间的冷却阶段，冷却速度至少达到Ms点达到临界冷却速度，然后在从Ms点到200℃的温度范围内在25-150℃/ s的范围内 C。热压部件的维氏硬度小于（最大淬火硬度-10）的值，至少为（最大淬火硬度-100）的值。

98. 发明公开

EP1637619A1 TUBE D'ACIER POUR SYSTEME DE COUSSIN DE SECURITE GONFLABLE ET PROCEDE DE PRODUCTION ASSOCIE 有权转让
标题翻译： STAHLROHRFÜRAIRBAGSYSTEM UND HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP1637619A1
公开(公告)日：2006-03-22
申请号：EP04734119.3
申请日：2004-05-20
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： ARAI, Yuji c/o Sumitomo Metal Industries, Ltd. , KONDO, Kunio c/o Sumitomo Metal Industries, LTD.
IPC分类号： C22C38/00 , C22C38/32 , C22C38/54 , C21D9/08 , B60R21/26
CPC分类号： C21D9/08 , B60R21/26 , C21D8/10 , C21D8/105 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/32 , C22C38/54
摘要： A high strength steel pipe for an airbag system has a steel composition comprising C: 0.05 - 0.20 %, Si: 0.1 - 1.0 %, P: at most 0.025 %, S: at most 0.010 %, Cr: 0.05 - 1.0 %, Al: at most 0.10 %, at least one of Ti and Mn satisfying (1) Ti ≤ 0.02% and (2) 0.4% ≤ Mn + 40Ti ≤ 1.2%, and a remainder of Fe. The composition may further include one or more of (i) at least one of Mo: 0.05 - 0.50 %, Ni: 0.05 - 1.5 %, V: 0.01 - 0.2 %, and B: 0.0003 - 0.005 %, (ii) at least one of Cu: 0.05 - 0.5 % and Nb: 0.003 - 0.1 %, and (iii) at least one of Ca: 0.0003 - 0.01 %, Mg: 0.0003 - 0.01 %, and REM: 0.0003 - 0.01 %. The steel pipe can be manufactured by forming a pipe from the above-described steel composition to obtain prescribed dimensions, heating to at least the Ac 1 transformation point and quenching, and then tempering at the Ac 1 transformation point or below.
摘要翻译：用于气囊系统的高强度钢管具有C：0.05-0.20％，Si：0.1-1.0％，P：0.025％以下，S：0.010％以下，Cr：0.05〜1.0％，Al ：至多0.10％，Ti和Mn中的至少一种满足（1）Ti‰0.02％和（2）0.4％‰Mn + 40Ti‰¤1.2％，余量为Fe。所述组合物还可以包含以下中的至少一种：（i）Mo：0.05〜0.50％，Ni：0.05〜1.5％，V：0.01〜0.2％，B：0.0003〜0.005％中的至少一种，（ii） Cu：0.05〜0.5％，Nb：0.003〜0.1％，（iii）Ca：0.0003〜0.01％，Mg：0.0003〜0.01％，REM：0.0003〜0.01％中的至少一种。钢管可以通过从上述钢组合物形成管而获得规定的尺寸，加热到至少Ac 1相变点并淬火，然后在Ac 1相变点或更低温度下回火来制造。

99. 发明公开

EP1637245A1 Cr-PLATED MADNREL BAR FOR MANUFACTURING HOT SEAMLESS TUBE AND METHOD OF MANUFACTURING THE SAME 失效转让
标题翻译： CHROME DORN ROD的用于生产热无缝管及方法生产同样
公开(公告)号：EP1637245A1
公开(公告)日：2006-03-22
申请号：EP04745541.5
申请日：2004-06-03
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： Iida, Sumio, c/o Sumitomo Metal Industries, Ltd. , Anraku, Toshiro, Sumitomo Metal Industries, Ltd. , Imamura, Masami, Sumitomo Metal Industries, Ltd. , Hori, Hirofumi, c/o Sumitomo Metal Industries, Ltd
IPC分类号： B21B25/00
CPC分类号： B21B25/00
摘要： By employing a Cr-plated mandrel bar for producing hot seamless tubes according to the present invention wherein centerline average roughness Ra in axial and circumferential directions as well as maximum depth Rv in axial and circumferential directions is specified and further maximum height Rp in axial and circumferential is specified, surface defects such as seizure unlikely generate in an elongation-rolling process by a mandrel mill so that the service life can be dramatically extended, thereby the remarkable reduction of tool cost can be achieved. Moreover, it contributes greatly to improve the inner surface quality of hot seamless tubes to be rolled by a mandrel mill rolling process. Also, the manufacturing method by the present invention makes it possible to efficiently manufacture Cr-plated mandrel bar for producing hot seamless tubes.
摘要翻译：通过采用用于在轴向和圆周方向上产生热无缝管雅丁到在轴向和圆周方向在本发明worin中心线平均粗糙度Ra以及最大深度器Rv一个镀Cr芯棒被指定并在轴向和周向进一步最大高Rp 被指定时，表面缺陷：如发作不太可能在拉伸轧制过程以产生由芯棒式无缝管轧机所以做了使用寿命可以大大延长，从而工具成本的显着降低可以实现的。更过来，这大大有助于提高热轧无缝钢管的内表面质量是由芯棒式无缝管轧机轧制工序。因此，通过本发明的制造方法使得能够有效地制造镀Cr芯棒用于产生热无缝钢管。

100. 发明公开

EP1632583A1 TOOL STEEL FOR HOT WORKING, TOOL FOR HOT WORKING AND PLUG FOR PRODUCING SEAMLESS PIPE 有权
标题翻译：工具钢温成形，成形刀具温暖和荆棘PRODUCING无缝管
公开(公告)号：EP1632583A1
公开(公告)日：2006-03-08
申请号：EP04732422.3
申请日：2004-05-12
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： ANRAKU, Toshiro, Sumitomo Metal Industries Ltd. , IGARASHI, Masaaki, Sumitomo Metal Industries Ltd. , YAMAKAWA, Tomio, Sumitomo Metal Industries Ltd. , SHIMODA, Kazuhiro, Sumitomo Metal Industries Ltd. , HIDAKA, Yasuyoshi, Sumitomo Metal Industries Ltd.
IPC分类号： C22C38/00 , B21B25/00
CPC分类号： C22C38/42 , B21B25/00 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/52
摘要： A hot tool steel, having a favorable adhesion and the lubricity of an oxide scale formed on its surface and having high strength. The hot tool steel consists of C: 0.05 to 0.5%, Si: 0.1 to 1%, Mn: 1.6 to 3.5%, Ni: 0.05 to 0.5%, Mo: 2 to 5%, W: 2 to 5%, Cu: 0.05 to 0.5%, and the balance Fe and impurities. The hot tool steel preferably contains further one or more of Cr, Co, REM, Ti, Nb, V, Zr and B. The tool made of the hot tool steel is covered on its surface with the oxide scale of 50 to 1500 µm thickness. The typical example of the tool is a piercing plug for manufacturing seamless pipes.
摘要翻译：甲热工具钢，具有良好的粘附性和形成在其表面上的氧化皮的润滑性和具有高的强度。热工具钢下设的C：0.05〜0.5％以下，Si：0.1〜1％以下，Mn：1.6〜3.5％以下，Ni：0.05〜0.5％以下，Mo：2-5％，W：2〜5％的Cu： 00:05〜0.5％，以及余量的Fe和杂质。热工具钢，优选含有由热工具钢的工具被覆盖在其表面上具有50上的氧化皮至1500层微米的厚度的一个或多个另外铬，钴，REM，钛，铌，V，Zr和B的，该工具的典型实施例是一种用于制造无缝钢管的刺穿塞。

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