A913材料标准

2024年2月12日发(作者：雪像什么)

Designation: A 913/A913M-04

名称：A 913/A913M-04（Translator：Helen）

Standard Specification for High-Strength Low-Alloy steel shapes of structural quality, produced

by quenching and lf-tempering process(QST)

标准规范对于高强低合金铌钒型钢结构质量的规定，通过淬火和自回火工艺制造。

This standard is issued under the fixed designation A913/A913M; the number immediately

following the designation indicates the year of original adoption or in the ca of revision. A

number in parenthes indicates the year of last revision or reapproval.

这个标准下发行的指定规范A913/A913M；规范名称后面的编码指出原采用规范或在修改的情况下的年份，；最后修订本或批准版本的时间在括号中指定一个编号。

1. Scope 范围

This specification covers high-strength low-alloy structural steel shapes in Grades

50[345],60[415],and 65[450] and 70[485],produced by the quenching and lf-tempering

process(QST)2 .The shapes are intended for riveted or bolted construction of bridges, buildings

and other structures.

这个规范覆盖50[345],60[415], 65[450] 和70[485]级别的高强低合金结构钢，通过淬火和自回火工艺(QST)2制造；这些型钢打算用铆钉和螺栓固定的桥梁建筑，高楼和其他建筑物的型钢。

The QST process consists of in line heat treatment and cooling rate controls which result in

mechanical properties in the finished condition that are equivalent to tho attained using heat

treating process which entail reheating after rolling. A description of the QST process is given in

Appendix X1.

淬火和自回火处理程序在于热处理和冷却比率控制的完成条件下产生的力学性能，这个过程相当于那些利用热处理程序轧制之后再加热而产生的力学性能。淬火和自回火处理程序在附件X1中给了描述。

Due to the inherent characteristics of the QST process, the shapes shall not be formed and

0post weld heat treated at temperatures exceeding

1100F[6000C] .

0由于淬火和自回火处理程序固有特性，焊后热处理温度超过1100F[6000C]不能形成型钢。

When the steel is to be welded, it is presuppod that a welding procedure suitable for the

grade of steel and intended u or rvice will be utilized. See appendix X3 of specification A 6/A

6M for information on weldability.

在钢结构焊接的时候，要假设钢铁的等级适合的焊接工艺并打算利用的用途或服务。见规范A 6/A 6M中附件X3中关于可焊接信息。

The values stated in either inch-pound units or SI units are to be regarded parately as

standard. Within the text, the SI units are shown in brackets. The values stated in each system are

not exact equivalents; therefore, each system must be ud independently of the other. Combining

values from the two systems may result in nonconformance with this specification.

值的描述在英制单位和国际制单位中任选其一作为标准，在文章中，在括号中写明国际单位制。值的描述在每个体系中都没有确切的对应，因此，每个体系必须独立于其他，两个体系值的混合可能会导致与此规范不一致。

2. Referenced documents 参考文献

2.1 ASTM

Standards；美国材料与试验学会标准

A 6/A 6M Specification for General Requirement for Rolled Structural Steel Bars, Plates,

Shapes, and Sheet Piling.

规范A 6/A 6M中对轧制钢条，钢板，型钢和打板桩一般要求

A 673/A 673M Specification for Sampling Procedure for Impact Testing of Structural Steel.

规范A 673/A 673M中对于钢结构取样冲击测试流程。

A 898/A 898M Specification for Straight Beam Ultrasonic Examination of Rolled steel

structural shapes.

898/A 898M规范对于轧制结构钢型钢的直梁超声波检测

3. General Requirements for Delivery 交货一般要求

3.1 material furnished under this specification shall conform to the applicable requirements of

the current edition of specification A 6/A 6M.

材料的供应应该符合目前版本的A 6/A 6M.规范的适用要求

4. Materials and Manufacture 材料及加工制造

4.1 The shapes shall be produced by the quenching and lf-tempering process(QST).

0Self-tempering temperature shall be a minimum of

1100F[6000C] and the lf-tempering

3temperature for the material reprented shall be reported on the mill test report. See appendix for

process description.

0型钢应该使用淬火和自回火工艺制造，自回火温度应该最小达到1100F[6000C]并按照材料的车间测试报告表明的自回火温度。见工艺描写附件。

4.2 for grades 60[415],65[450],and 70[485],the requirement for fine austenitic grain size in

specification A 6/A 6M shall be met.

对于60[415],65[450],和70[485]级要求符合A 6/A 6M规范 中 规定的最佳奥氏体晶粒度。5. Chemical composition 化合物

5.1 the chemical analysis of the heat shall conform to the requirements prescribed in Table 1.

化学的热分析应该符合表1中描述的要求。

5.2 the steel shall conform on product analysis to the requirements prescribed in Table 1 subject

to the product analysis tolerances in Specification A 6/A 6M.

钢材将符合表1中描述的产品分析要求，并且符合A 6/A 6M规范中规定产品分析的公差。

Table 1 chemical requirements(heat analysis)化学含量的要求（热分析）

Element原素

Grade 50[345]

Carbon 碳

Mangane

锰

0.12

1.60

0.14

1.60

最大含量％

Grade 60[415] Grade 65[450]

0.16

1.60

Grade 70[485]

0.16

1.60

Phosphorus

磷

Sulfur 硫磺

Silicon 硅

Copper 铜

Nickel 镍

Chromium铬

Molybdenum钼

Columbium铌

Vanadium钒

0.040

0.030

0.40

0.45

0.25

0.25

0.07

0.05

0.06

0.030

0.030

0.40

0.35

0.25

0.25

0.07

0.04

0.06

0.030

0.030

0.40

0.35

0.25

0.25

0.07

0.05

0.06

0.040

0.030

0.40

0.45

0.25

0.25

0.07

0.05

0.09

6. Mechanical properties力学性能

6.1 Tensile properties: 拉伸性能-The material as reprented by the test specimens shall

conform to the tensile properties given in Table2.材料的取样测试结果应该符合表2中的拉伸性能。

TABLE2 Tensile requirement 张力要求

Grade 等级

Yield

point,min.最小屈服点

ksi

Tensile

strength,min.最小张力强度

ksi

Elongation,min最小伸长率

[mpa] [mpa]

8

in.[200mm],%

2

in.[50mm],%

21

18

17

16

50

60

65

70

【345】

50

【415】

60

【450】

65

【485】

70

【345】

65

【415】

75

【450】

80

【485】

90

【450】

18

【520】

16

【550】

15

【620】

14

6.2 Charpy V-Notch Tests shall be made in accordance with specification A 673/A

673M,Frequency H:

根据规范A 673/A 673M ，H频率做夏比V形缺口冲击试验

6.2.1 The test results of full-size specimens shall meet an average value of 40 ft-lbf[54 J] at

700F[210C].

实尺样品测试结果应该符合平均值40 ft-lbf[54 J] at

70F[21C]

6.2.2 Charpy V-Notch Test requirements exceeding the value specified in 6.2.1 or lower test

temperatures are subject to agreement between the purchar and the producer.

夏比V形缺口冲击试验要求超过6.2.1列明的值或低温测试应按照买方和制造方的协定。

7. maximum carbon equivalent requirement最高碳当量规定

7.1 the carbon equivalent on heat analysis shall not exceed the limits listed in this

00

chemical analysis (heat analysis )of the elements that appear in the carbon equivalent formula and

the actual carbon equivalent shall be reported.

根据元素的化学分析（热分析）在碳当量公式和实际碳当量的显示，碳当量热分析不超过这部分所列明的限度。

Carbon equivalent limits 碳当量的限定

Grade 50[345]: 0.38%

Grade 60[415]: 0.40%

Grade 65[450]: 0.43%

Grade 70[485]: 0.45%

7.2 calculate the carbon equivalent using the following equation:

使用下面的方程式计算碳当量：

CE=C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15

8. Keywords 关键词

8.1 high-strength low-alloy steel;QST; quenching and lf-tempering process; steel shapes;

structural shapes; structural steel

高强低合金钢；淬火和自回火测试；淬火和自回火工艺；型钢；结构钢型钢；结构钢

SUPPLEMENTARY REQUIREMENTS 补充要求

Supplementary requirements shall not apply unless specified in the purcha order or contract.

Standardized supplementary requirements for u at the option of the purchar are listed in

specification A 6/A 6M.

除非订单或合同没规定，否则不适用补充要求。对于补充要求标准的应用在A 6/A 6M规范列明了买方的权利。

Tho that are considered suitable for u with this specification are listed by title:

那些被认为适用的规范下面列出了标题：

treatment. 真空处理

S2. Product analysis 产品分析

S3. Simulated post-weld heat treatment of mechanical test coupons.

模拟焊后热处理力学测试券

V-Notch Impact Test

Charpy V-槽口冲击测试

S18 maximum tensile strength

S18最大可拉长强度

S30 charpy v-notch impact test for structural shape: Alternate Core Location

对于型钢的夏比V形缺口冲击试验：预留的核心位置

ADDITIONAL SUPPLEMENTARY REQUIREMENTS

额外的附加要求

IN addition, the following special supplementary requirements are also suitable for u with

this specification:

另外，下面是此规范中适用的特殊附加要求：

S4. additional tension test:附加张力测试

S4.1 one tension test shall be made per ingot or per bloom. The results obtained and the actual

lf-tempering temperature for the ingot or bloom reprented shall be reported on the mill test

report when such tests are required by the order.

其中每个钢锭或钢坯都要进行拉伸试验；钢锭的拉伸试验所得的结果与实际的自回火温度应与工厂测试报告说明一至，这些测试都需要按会议商定的规则要求。

S8. Ultrasonic Examination 超声波检测

S8.1 Ultrasonic Examination in accordance with specification A 898/A 898M.

依照A 898/A 898M.规范的超声波检测

S32. single heat bundles: 单个热捆扎

S32.1. bundles containing shapes or bars shall be from a single heat of steel.

型钢和钢条的捆扎应该采取单个热捆扎。

S75. Maximum yield point to tensile strength ratio-grades 50[345]:

拉伸强度50[345]级比率最大屈服点

maximum yield point shall be 65 ksi.[450]

最大屈服强度应该为65 ksi.[450]

maximum yield to tensile strength ratio shall be 0.85

拉伸强度最大屈服点的比率应该是0.85

d Sulfur-grade 65[450]:

降低硫磺等级65[450]

S77.1. The grade 65[450] shall be furnished with a maximum sulfur of 0.010%. this may be

desirable in material subjected to high through-thickness stress.

供应的等级为65[450]的硫磺最大含量为0.010％，符合要求的材料应该

APPENDIX附件

(Nonmandatory information)非强制性要求

ING AND SELF-TEMPERING PROCESS(QST)

淬火和自回火工艺

X1.1 Introduction-the quenching and lf-tempering process, commonly referred to as “QST” ,has

evolved from the “thermo-mechanical control process”(TMCP) that have been known and ud

for a number of years. QST,which is a variation of TMCP, produces fine-grained steel by a

combination of chemical composition and integrated controls of manufacturing process from

ingot or bloom reheating to in-line interrupted quenching and lf-tempering, thereby achieving

the specified mechanical properties in the required product thickness.

淬火和自回火工艺介绍，一般提到的“淬火和自回火工艺”,是由“热机械控制工艺”进化而来的，这个工艺已经被使用了很多年而且被大家所熟知。淬火和自回火工艺是从热机械控制工艺变化而来的，生产细花纹钢材需要通过结合化学成分和从再加热的钢锭或钢坯到内嵌的分级淬火和自回火的制造过程整和控制，因此达到生产厚钢板要求所规定的机械性能。

X1.2 Outline of QST Given in fig. X1.1:在图X1.1列出了淬火和自回火的要点。

X1.2.1 Quenching and lf-tempering (QST)-steels of fine grain size are manufactured by

producing tempered martensite and varying the pearlite or both, volume fraction through time

quenching (interrupt quenching in which the duration of holding in the quenching medium (water)

is controlled) in the temperature region above Ar3 (the temperature at which austenite begins to

transform to ferrite during cooling) to a minimum lf-tempering temperature (STT, that is, the

0maximum surface temperature after quenching) of

1100F[6000C] in order to meet the

specified requirements. Time quenching can be performed after conventional rolling process(AR)

and (CR) or after thermomechanical controlled rolling (TMCR).

最佳结晶粒度的淬火和自回火钢材通过生产回火马氏体和变化珠光体或两者，在上面Ar30温度范围到最小1100为了达到规范要求，容积率通过定时淬火（在F[6000C]自回火温度，限制淬火剂持续使用期间中断淬火的控制），在传统的轧制工艺热轧和控制轧制(CR)或热机械控制的轧制之后能完成定时淬火。

表见书

structure Temperature温度

Type of

processing工艺类型

Conventional

process传统工艺

AR

CR

Recrystallized(equi-axed)austenite Normalizing Thero-mecanical

Control process再结晶体 temp.常温

热机械控制

Non recryst (elongated) austenite无晶体

Austenite+ferrite体＋铁素体

Ferrite+pearlite(ferrite+bainite)

铁素体＋珠光体（铁素体＋贝氏体）

Martensite马氏体

Ar3

Ar1

TMR

QST

Ms

Note注释：TMR: THERMO-MECHANICAL ROLLING 热机械轧制

QST: QUENCHING AND SELF-TEMPERING 淬火和自回火

AR: AS ROLLED热轧 CR: CONTROLLED ROLLING控制轧制

MTT: MARTENSITE TEMPERING 马氏体回火

R: REDUCTION 变形

STT: SELF TEMPERING TEMPERATURE自回火温度

*EXPLANATION OF TEMPERATURE CURVES 温度曲线的解释

(4.1.1):SURFACE TEMPERATURE DURING QUENCHING 在淬火期间的表面温度

(4.1.2):SURFACE TEMPERATURE DURING SELF-TEMPERING在自回火期间的表面温度

FIG.X1.1 Schematic diagrams of thermo-mechanical control and conventional process

图X1.1热机械控制和传统工艺的图标示意

X1.2.2 The lection of the rolling process to be ud is made by the producer depending upon the

chemical composition, the product thickness, and the required properties.

图X1.2.2 厚板所要求达到的力学性能所使用的轧制工艺，厂商应依靠化学成分。

SUMMARY OF CHANGES更改概要

Committee A01 has identified the location of lected changes to this standard since the last

issue (A 913/A 913M-03)that may impact the u of this standard.(Approved April1,2004)

委员会已经确定A 572/A 572M-03标准中我们选定的A01已经改变,至去年发行的标准(A

572/A 572M-03)可能会影响这个标准的使用。（2004，4月被核准）

（1） Supplementary requirement S32 has been added.

增加了附加要求S32

Committee A01 has identified the location of lected changes to this standard since the last

issue (A 913/A 913M -01)that may impact the u of this standard.(Approved may 10,2003)

委员会已经确定(A 913/A 913M -01)规范中我们选定的A01标准已经改变,至去年发行的规范(A 913/A 913M -01)可能会影响这个标准的使用。（2003，5月10日被批准的）

(1) Section 1 was revid.

第一章已经被修改