無縫異型管的切削加工性：無縫異型鋼管材料的切削加工性系指金屬接受切削加工的能力，也是指金屬經(jīng)過加工而成為合乎要求的工件的難易程度。通?？梢郧邢骱蠊ぷ鞅砻娴拇植诔潭?、切削速度和刀具磨損程度來評價金屬的切削加工性。

Cutting machinability: Cutting machinability of seamless special-shaped steel pipe refers to the ability of metal to accept cutting, and also refers to the degree of difficulty that metal is processed to become a required workpiece. Usually, the machinability of metal can be evaluated by the roughness of the working surface, cutting speed and tool wear after cutting. 

無縫異型管的鍛性：鍛性是無縫異型管材料在承受錘鍛、軋制、拉拔、擠壓等加工工藝是會改變形狀而不產(chǎn)生裂紋的性能。它實際上是金屬塑性好壞的一種表現(xiàn)，材料塑性越高，變形抗力就越小，則鍛性就越好。鍛性好壞主要決定于金屬的化學(xué)成分、顯微組織、變形溫度、變形速度及應(yīng)力狀態(tài)等因素。

Forgetability: Forgetability is the performance of seamless special-shaped pipe material that can change shape without cracking under hammer forging, rolling, drawing, extrusion and other processing technologies. In fact, it is a manifestation of metal plasticity. The higher the plasticity of material, the smaller the deformation resistance and the better the forging ability. The forging property is mainly determined by the chemical composition, microstructure, deformation temperature, deformation speed and stress state of the metal.

無縫異型管的頂鍛性：頂鍛性是指無縫異型管承受打鉚、鐓頭等的頂鍛變形的性能。金屬的頂鍛性，是用頂鍛試驗測定的。

Forging property: Forging property refers to the ability of seamless special-shaped pipe to withstand upsetting deformation such as riveting and upsetting. The upsetting property of metals is determined by upsetting test.

無縫異型管的熱處理工藝性：熱處理是指金屬或合金在固態(tài)范圍內(nèi)，通過一定的加熱、保溫和冷卻方法，以改變金屬或合金的內(nèi)部組織，而得到所需性能的一種工藝操作。熱處理工藝就是指金屬經(jīng)過熱處理后其組織和性能改變的能力，包括淬硬性、淬透性、回火脆性等。

Heat treatment technicality: heat treatment refers to a kind of technological operation in which metal or alloy can change the internal structure of metal or alloy through certain heating, heat preservation and cooling methods in the solid range to obtain the required properties. Heat treatment process refers to the ability of metal to change its structure and properties after heat treatment, including hardenability, hardenability, temper embrittlement and so on.

無縫異型管的鑄造性：無縫異型管材料能用鑄造方法獲得合格鑄件的能力稱為鑄造性。鑄造性包括流動性、收縮性和偏析傾向等。流動性是指液態(tài)金屬充滿鑄模的能力，流動性愈好，愈易鑄造細(xì)薄精致的鑄件，收縮性是指鑄件凝固時體積收縮的程度，收縮愈小，鑄件凝固時變形愈小。偏析是指化學(xué)成分不均勻，偏析愈嚴(yán)重，鑄件各部位的性能愈不均勻，鑄件的可靠性愈小。

Castability: The ability of seamless special-shaped pipe material to obtain qualified castings by casting method is called castability. Castability includes fluidity, shrinkage and segregation tendency. Fluidity refers to the ability of liquid metal to fill the casting mould. The better the fluidity, the easier it is to cast thin and delicate castings. Shrinkage refers to the degree of volume shrinkage during solidification. The smaller the shrinkage, the smaller the deformation during solidification. Segregation refers to the uneven chemical composition, the more serious the segregation, the more uneven the performance of each part of the castings, and the less reliable the castings are.

無縫異型管的焊接性：焊接性是指無縫異型管在特定結(jié)構(gòu)和工藝條件下通過常用焊接方法獲得預(yù)期質(zhì)量要求的焊接接頭的性能。焊接性一般根據(jù)焊接時產(chǎn)生的裂紋敏感性和焊縫區(qū)力學(xué)性能的變化來判斷。

Weldability: Weldability refers to the performance of welded joints of seamless special-shaped pipes which can obtain expected quality requirements through common welding methods under specific structural and technological conditions. Weldability is generally judged by crack sensitivity and mechanical properties of weld zone.

無縫異型管的沖壓性：沖壓性是指無縫異型管經(jīng)過沖壓變形而不發(fā)生裂紋等缺陷的性能。為保證制品的質(zhì)量和工藝的順利進行，用于沖壓的金屬板、帶等必須具有合格的沖壓性能。

Stamping property: Stamping property refers to the property of seamless special-shaped pipe which is stamped and deformed without cracks and other defects. In order to ensure the quality of products and the smooth progress of the process, the metal sheets and strips used for stamping must have qualified stamping performance.

無縫異型管的冷彎性：無縫異型管材料在常溫下能承受彎曲而不破裂的性能，稱為冷彎性。出現(xiàn)裂紋前能承受的彎曲程度愈大，則材料的冷彎性能愈好。

Cold bending property: Seamless special-shaped pipe material can withstand bending without breaking at room temperature, which is called cold bending property. The greater the bending degree before cracking, the better the cold bending performance of the material.