冶金矿产：C渗层出现大块状王庄碳化物；主要是渗碳时表面碳浓度过高，降低渗剂活性，严格控制碳势。汽车、拖拉机齿轮选用2CrMnTi材料，其加工工艺路线为：下料锻造正火机加工渗碳、淬火+低温回火喷丸磨削成品，试分析各热处理工序的作用。A正火——消除锻造应力，使组织均匀，调整硬度改善切削加工性。渗碳——提高齿面碳的浓度，（.8~1.5%C）淬火——提高齿面硬度并获得一定淬硬层深度，使表面得到M回火+合金碳化物+γ具有高硬度（58~62HRC）、高耐磨、较高强度和一定的韧性。
英标H型钢规格表：
UB127x76x13 UB152x89x16 UB178x102x19
UB203x102x23 UB203x133x25 UB203x133x30
UB254x102x22 UB254x102x25 UB254x102x28
UB254x146x31 UB254x146x37 UB254x146x43
UB305x102x25 UB305x102x28 UB305x102x33
UB305x127x37 UB305x127x42 UB305x127x48
UB305x165x40 UB305x165x46 UB305x165x54
UB356x127x33 UB356x127x39 UB356x171x45
UB356x171x51 UB356x171x57 UB356x171x67
UB406x140x39 UB406x140x46 UB406x178x54
UB406x178x60 UB406x178x67 UB406x178x74
UB457x152x52 UB457x152x60 UB457x152x67
UB457x152x74 UB457x152x82 UB457x191x67
UB457x191x74 UB457x191x82 UB457x191x89
UB457x191x98 UB533x210x82 UB533x210x92
UB533x210x101 UB533x210x109 UB533x210x122
UB610x229x101 UB610x229x113 UB610x229x125
UB610x229x140 UB610x305x149 UB610x305x179
UB610x305x238 UB686x254x125 UB686x254x140
UB686x254x152 UB686x254x170 UB762x267x147
UB762x267x173 UB762x267x197 UB838x292x176
UB838x292x194 UB838x292x226 UB914x305x201
UB914x305x224 UB914x305x253 UB914x305x289
UB914x419x343 UB914x419x388 UB1016x305x222
UB1016x305x249 UB1016x305x272 UB1016x305x314
UB1016x305x349 UB1016x305x393 UB1016x305x415
UB1016x305x438 UB1016x305x494 UB1016x305x584
英标H型钢UC系列理论重量表：
UC152x152x23 152.4x152.2x5.8x6.8
UC152x152x37 161.8x154.4x8x11.5
UC203x203x46 203.2x203.6x7.2x11
UC203x203x86 222.2x209.4x12.7x20.5
UC254x254x73 254.1x254.6x8.6x14.2
UC254x254x89 260.3x256.3x10.3x17.3
UC254x254x167 289.1x265.2x19.2x31.7
UC305x305x97 307.9x305.3x9.9x15.4
UC305x305x118 314.5x307.4x12x18.7
UC305x305x137 320.5x309.2x13.8x21.7
UC305x305x283 365.3x322.2x26.8x44.1
UC356x368x129 355.6x368.6x10.4x17.5
UC356x368x153 362x370.5x12.3x20.7
UC356x368x177 368.2x372.6x14.4x23.8
UC356x368x202 374.6x374.7x16.5x27
UC356x406x235 381x394.8x18.4x30.2
UC356x406x393 419x407x30.6x49.2
UC356x406x592 465x421x45x72.3
UC356x406x744 498x432x55.6x88.9
UC356x406x990 550x448x71.9x115
UC356x406x1299 600x476x100x140
英标型钢：
b.无缝钢管，因其用途不同而分为如下若干品种：GB/T8162-1999（结构用无缝钢管）。主要用于一般结构和机械结构。其代表材质（牌号）：碳素钢2、45号钢；合金钢Q342Cr、4Cr、2CrMo、3-35CrMo、42CrMo等。GB/T8163-1999（输送流体用无缝钢管）。主要用于工程及大型设备上输送流体管道。代表材质（牌号）为2、Q345等。GB387-1999（低中压锅炉用无缝钢管）。
英标H型钢UB1016x305x494