| 材料 | B53 3271 Ci |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% |
| 0.02-0.12 | 0.10-0.60 | ≤ 0.50 | ≤ 0.10 | ≤ 0.045 |
| ≤ 0.30 |
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| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 120-300 | 260-420 | ≥26 |
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| 材料 | B53 3271 Ei |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% |
| ≤ 0.12 | 0.08-0.70 | ≤ 0.50 | ≤ 0.10 | ≤ 0.045 | ≥0.015 | ≤ 0.30 |
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| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 120-240 | 260-360 | ≥34 | ≥1.30 | ≥0.16 |
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| 材料 | B53 3271 ESi |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% |
| ≤ 0.12 | 0.05-0.60 | ≤ 0.50 | ≤ 0.10 | ≤ 0.045 | ≥0.015 | ≤ 0.30 |
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| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 140-200 | 270-340 | ≥36 | ≥1.60 | ≥0.18 |
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| 材料 | B53 3271 SESi |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% |
| ≤ 0.12 | ≤ 0.60 | ≤ 0.50 | ≤ 0.10 | ≤ 0.045 | ≥0.015 | ≤ 0.30 |
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| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 140-180 | 270-330 | ≥40 | ≥1.90 | ≥0.21 |
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| The material | B53 3271 1Ci |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% |
| ≤ 0.12 | ≤ 0.60 |
| ≤ 0.045 | ≤ 0.045 |
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| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 170-360 | ≤440 | ≥24 |
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| 材料化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% |
| ≤ 0.08 | ≤ 0.40 |
| ≤ 0.03 | ≤ 0.03 |
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| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 170-330 | ≤400 | ≥29 |
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| 材料 | B53 3271 E180BHi |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% |
| ≤0.10 | ≤0.70 | ≤0.50 | ≤0.06 | ≤0.03 | ≤0.10 | ≤0.12 | ≤0.09 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 180-260 | 290-360 | ≥34 | ≥1.50 | ≥0.16 | ≥35 |
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| 材料 | B53 3271 E220BHi |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% |
| ≤0.10 | ≤0.90 | ≤0.50 | ≤0.08 | ≤0.03 | ≤0.10 | ≤0.12 | ≤0.09 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 220-300 | 320-400 | ≥32 | ≥1.20 | ≥0.15 | ≥32 |
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| 材料 | B53 3271 P220i |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% |
| ≤ 0.08 | 0.10-0.90 | ≤0.50 | 0.01-0.08 | ≤0.03 | 0.015-0.10 | ≤0.12 | ≤0.09 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 200-300 | 340-420 | ≥31 | ≥1.30 | ≥0.15 |
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| 材料 | B53 3271 P260i |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% |
| ≤ 0.11 | 0.20-1.30 | ≤0.50 | 0.01-010 | ≤0.03 | 0.015-0.10 | ≤0.12 | ≤0.09 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 240-340 | 360-440 | ≥28 | ≥1.10 | ≥0.12 |
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| 材料 | B53 3271 E275Di |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% |
| 0.02-0.11 | 0.10-1.00 | ≤0.50 | ≤0.03 | ≤0.03 | 0.015-0.10 | ≤0.15 | ≤0.09 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 260-380 | 350-480 | ≥23 |
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| 材料 | B53 3271 E335Di |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% |
| 0.02-0.12 | 0.20-1.10 | ≤0.50 | ≤0.03 | ≤0.03 | ≥0.015 | ≤0.15 | 0.02-0.09 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 320-440 | 410-520 | ≥21 |
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| 材料 | B53 3271 E390Di |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% |
| ≤0.12 | ≤1.40 | ≤0.50 | ≤0.03 | ≤0.03 | ≥0.015 | ≤0.15 | ≤0.09 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 380-480 | 440-560 | ≥19 |
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| 材料 | B53 3271 HD300LAi |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% |
| ≤0.12 | ≤1.30 | ≤0.35 | ≤0.025 | ≤0.015 | ≥0.015 | ≤0.20 | ≤0.12 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 300-430 | 380-500 | ≥26 |
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| 材料 | B53 3271 HD380LAi |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% | Ti%+Nb% | V% |
| ≤0.12 | ≤1.30 | ≤0.35 | ≤0.025 | ≤0.015 | ≥0.015 | ≤0.20 | ≤0.12 | ≤0.20 | ≤0.12 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 380-530 | 460-600 | ≥23 |
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| 材料 | B53 3271 HE445Di |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% | Ti%+Nb% | V% |
| ≤0.12 | ≤1.60 | ≤0.35 | ≤0.025 | ≤0.015 | ≥0.015 | ≤0.15 | ≤0.09 | ≤0.20 | ≤0.12 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 420-540 | 520-650 | ≥22 |
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| 材料 | B53 3271 HE490Di |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% | Ti%+Nb% | V% |
| ≤0.12 | ≤1.50 | ≤0.35 | ≤0.025 | ≤0.015 | ≥0.015 | ≤0.20 | ≤0.12 | ≤0.20 | ≤0.12 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 500-620 | 560-700 | ≥18 |
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| 材料 | B53 3271 DP450i |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% | Ti%+Nb% | V% |
| ≤0.14 | ≤2.00 | ≤0.80 | ≤0.08 | ≤0.015 | ≤2.00 | ≤0.15 | ≤0.15 | ≤0.15 | ≤0.20 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 260-340 | ≥450 | ≥27 |
| ≥0.16 | ≥30 |
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| 材料 | B53 3271 DP600i |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% | Ti%+Nb% | V% | Cr% | Mo% | B% | N% | Cr%+Mo% |
| ≤0.17 | ≤2.20 | ≤0.80 | ≤0.08 | ≤0.02 | ≤2.00 | ≤0.15 | ≤0.15 | ≤0.15 | ≤0.20 | ≤1.00 | ≤1.00 | ≤0.01 |
| ≤1.00 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 340-460 | ≥580 | ≥18 |
| ≥0.14 | ≥30 |
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| 材料 | B53 3271 DP780i |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% | Ti%+Nb% | V% | Cr% | Mo% | B% | N% | Cr%+Mo% |
| ≤0.18 | ≤2.50 | ≤0.80 | ≤0.08 | ≤0.02 | ≤2.00 | ≤0.15 | ≤0.15 | ≤0.15 | ≤0.20 | ≤1.00 | ≤1.00 | ≤0.01 |
| ≤1.00 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 420-560 | ≥780 | ≥14 |
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| ≥30 |
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| 材料 | B53 3271 FB45i |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% | Ti%+Nb% | V% | Cr% | Mo% | B% | N% | Cr%+Mo% |
| ≤0.18 | ≤1.20 | ≤0.50 | ≤0.03 | ≤0.01 | ≥0.015 | ≤0.08 | ≤0.08 | ≤0.08 | ≤0.15 | ≤0.30 | ≤0.30 | ≤0.01 |
| ≤0.30 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 320-440 | ≥440 | ≥22 |
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| 材料 | B53 3271 FB60i |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% | Ti%+Nb% | V% | Cr% | Mo% | B% | N% | Cr%+Mo% |
| ≤0.20 | ≤1.80 | ≤0.50 | ≤0.03 | ≤0.01 | ≥0.015 | ≤0.15 | ≤0.15 | ≤0.15 | ≤0.15 | ≤0.30 | ≤0.30 | ≤0.01 |
| ≤0.30 |
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 440-640 | ≥560 | ≥14 |
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| 材料 | B53 3271 PHS 1500i |
| 化学性能 | C% | Mn% | Si% | P% | S% | Al% | Ti% | Nb% | Ti%+Nb% | V% | Cr% | Mo% | B% | N% | Cr%+Mo% |
| 0.19-0.27 | 1.50-2.50 | ≤0.50 | ≤0.03 | ≤0.01 | ≥0.01 | 0.02-0.06 |
|
|
| ≤0.50 |
| ≤0.01 | ≤0.02 |
|
| 力学性能 | YS | TS(MPa) | EL（%） | r | n | BH |
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| 300-600 | 550-750 | ≥10 |
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为了描述各等级系列的结构，必须考虑以下定义：烘烤硬化钢：黑洞钢，在170°C的20 min区域加热：这些钢具有良好的冷成型，并且具有较高的抗塑性应变（在热加工期间成品增加）和良好的抗凹痕性。复相钢：铁质/贝氏体基质，含有少量马氏体、保留奥氏体和/或珍珠岩，极端晶粒细化是由微合金元素延迟再结晶或沉淀引起的双相钢：D相钢，含有马氏体第二相，最终作为互补相：根据其高抗拉强度水平，双相钢具有低屈服强度比和高功硬化率。铁素体-贝氏体钢：由铁素体和/或强化铁素体组成的基体中含有贝氏体或强化贝氏体的纤维型。
对于机械悬架、车轮、转向（叉骨、井、后交叉等）的防腐漆保护，零件表面允许1到2个轻微缺陷。由于存在缺陷，人们认为它缺乏局部涂层。缺陷的最低尺寸必须保持在低于2 mm以下。缺陷的长度不受限制，因为其宽度仍然小于2毫米。
