A913材料標準

2024年2月12日發(作者：雪像什么)

Designation: A 913/A913M-04

名稱：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)

標準規范對于高強低合金鈮釩型鋼結構質量的規定，通過淬火和自回火工藝制造。

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.

這個標準下發行的指定規范A913/A913M；規范名稱后面的編碼指出原采用規范或在修改的情況下的年份，；最后修訂本或批準版本的時間在括號中指定一個編號。

1. Scope 范圍

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.

這個規范覆蓋50[345],60[415], 65[450] 和70[485]級別的高強低合金結構鋼，通過淬火和自回火工藝(QST)2制造；這些型鋼打算用鉚釘和螺栓固定的橋梁建筑，高樓和其他建筑物的型鋼。

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.

淬火和自回火處理程序在于熱處理和冷卻比率控制的完成條件下產生的力學性能，這個過程相當于那些利用熱處理程序軋制之后再加熱而產生的力學性能。淬火和自回火處理程序在附件X1中給了描述。

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由于淬火和自回火處理程序固有特性，焊后熱處理溫度超過1100F[6000C]不能形成型鋼。

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.

在鋼結構焊接的時候，要假設鋼鐵的等級適合的焊接工藝并打算利用的用途或服務。見規范A 6/A 6M中附件X3中關于可焊接信息。

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.

值的描述在英制單位和國際制單位中任選其一作為標準，在文章中，在括號中寫明國際單位制。值的描述在每個體系中都沒有確切的對應，因此，每個體系必須獨立于其他，兩個體系值的混合可能會導致與此規范不一致。

2. Referenced documents 參考文獻

2.1 ASTM

Standards；美國材料與試驗學會標準

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

Shapes, and Sheet Piling.

規范A 6/A 6M中對軋制鋼條，鋼板，型鋼和打板樁一般要求

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

規范A 673/A 673M中對于鋼結構取樣沖擊測試流程。

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

structural shapes.

898/A 898M規范對于軋制結構鋼型鋼的直梁超聲波檢測

3. General Requirements for Delivery 交貨一般要求

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

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

材料的供應應該符合目前版本的A 6/A 6M.規范的適用要求

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型鋼應該使用淬火和自回火工藝制造，自回火溫度應該最小達到1100F[6000C]并按照材料的車間測試報告表明的自回火溫度。見工藝描寫附件。

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.

對于60[415],65[450],和70[485]級要求符合A 6/A 6M規范 中 規定的最佳奧氏體晶粒度。5. Chemical composition 化合物

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

化學的熱分析應該符合表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.

鋼材將符合表1中描述的產品分析要求，并且符合A 6/A 6M規范中規定產品分析的公差。

Table 1 chemical requirements(heat analysis)化學含量的要求（熱分析）

Element原素

Grade 50[345]

Carbon 碳

Mangane

錳

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 銅

Nickel 鎳

Chromium鉻

Molybdenum鉬

Columbium鈮

Vanadium釩

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力學性能

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.材料的取樣測試結果應該符合表2中的拉伸性能。

TABLE2 Tensile requirement 張力要求

Grade 等級

Yield

point,min.最小屈服點

ksi

Tensile

strength,min.最小張力強度

ksi

Elongation,min最小伸長率

[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:

根據規范A 673/A 673M ，H頻率做夏比V形缺口沖擊試驗

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

700F[210C].

實尺樣品測試結果應該符合平均值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形缺口沖擊試驗要求超過6.2.1列明的值或低溫測試應按照買方和制造方的協定。

7. maximum carbon equivalent requirement最高碳當量規定

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.

根據元素的化學分析（熱分析）在碳當量公式和實際碳當量的顯示，碳當量熱分析不超過這部分所列明的限度。

Carbon equivalent limits 碳當量的限定

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:

使用下面的方程式計算碳當量：

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

8. Keywords 關鍵詞

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

structural shapes; structural steel

高強低合金鋼；淬火和自回火測試；淬火和自回火工藝；型鋼；結構鋼型鋼；結構鋼

SUPPLEMENTARY REQUIREMENTS 補充要求

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.

除非訂單或合同沒規定，否則不適用補充要求。對于補充要求標準的應用在A 6/A 6M規范列明了買方的權利。

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

那些被認為適用的規范下面列出了標題：

treatment. 真空處理

S2. Product analysis 產品分析

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

模擬焊后熱處理力學測試券

V-Notch Impact Test

Charpy V-槽口沖擊測試

S18 maximum tensile strength

S18最大可拉長強度

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

對于型鋼的夏比V形缺口沖擊試驗：預留的核心位置

ADDITIONAL SUPPLEMENTARY REQUIREMENTS

額外的附加要求

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

this specification:

另外，下面是此規范中適用的特殊附加要求：

S4. additional tension test:附加張力測試

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.

其中每個鋼錠或鋼坯都要進行拉伸試驗；鋼錠的拉伸試驗所得的結果與實際的自回火溫度應與工廠測試報告說明一至，這些測試都需要按會議商定的規則要求。

S8. Ultrasonic Examination 超聲波檢測

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

依照A 898/A 898M.規范的超聲波檢測

S32. single heat bundles: 單個熱捆扎

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

型鋼和鋼條的捆扎應該采取單個熱捆扎。

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

拉伸強度50[345]級比率最大屈服點

maximum yield point shall be 65 ksi.[450]

最大屈服強度應該為65 ksi.[450]

maximum yield to tensile strength ratio shall be 0.85

拉伸強度最大屈服點的比率應該是0.85

d Sulfur-grade 65[450]:

降低硫磺等級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.

供應的等級為65[450]的硫磺最大含量為0.010％，符合要求的材料應該

APPENDIX附件

(Nonmandatory information)非強制性要求

ING AND SELF-TEMPERING PROCESS(QST)

淬火和自回火工藝

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.

淬火和自回火工藝介紹，一般提到的“淬火和自回火工藝”,是由“熱機械控制工藝”進化而來的，這個工藝已經被使用了很多年而且被大家所熟知。淬火和自回火工藝是從熱機械控制工藝變化而來的，生產細花紋鋼材需要通過結合化學成分和從再加熱的鋼錠或鋼坯到內嵌的分級淬火和自回火的制造過程整和控制，因此達到生產厚鋼板要求所規定的機械性能。

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

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).

最佳結晶粒度的淬火和自回火鋼材通過生產回火馬氏體和變化珠光體或兩者，在上面Ar30溫度范圍到最小1100為了達到規范要求，容積率通過定時淬火（在F[6000C]自回火溫度，限制淬火劑持續使用期間中斷淬火的控制），在傳統的軋制工藝熱軋和控制軋制(CR)或熱機械控制的軋制之后能完成定時淬火。

表見書

structure Temperature溫度

Type of

processing工藝類型

Conventional

process傳統工藝

AR

CR

Recrystallized(equi-axed)austenite Normalizing Thero-mecanical

Control process再結晶體 temp.常溫

熱機械控制

Non recryst (elongated) austenite無晶體

Austenite+ferrite體＋鐵素體

Ferrite+pearlite(ferrite+bainite)

鐵素體＋珠光體（鐵素體＋貝氏體）

Martensite馬氏體

Ar3

Ar1

TMR

QST

Ms

Note注釋：TMR: THERMO-MECHANICAL ROLLING 熱機械軋制

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

AR: AS ROLLED熱軋 CR: CONTROLLED ROLLING控制軋制

MTT: MARTENSITE TEMPERING 馬氏體回火

R: REDUCTION 變形

STT: SELF TEMPERING TEMPERATURE自回火溫度

*EXPLANATION OF TEMPERATURE CURVES 溫度曲線的解釋

(4.1.1):SURFACE TEMPERATURE DURING QUENCHING 在淬火期間的表面溫度

(4.1.2):SURFACE TEMPERATURE DURING SELF-TEMPERING在自回火期間的表面溫度

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

圖X1.1熱機械控制和傳統工藝的圖標示意

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.

圖X1.2.2 厚板所要求達到的力學性能所使用的軋制工藝，廠商應依靠化學成分。

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)

委員會已經確定A 572/A 572M-03標準中我們選定的A01已經改變,至去年發行的標準(A

572/A 572M-03)可能會影響這個標準的使用。（2004，4月被核準）

（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)

委員會已經確定(A 913/A 913M -01)規范中我們選定的A01標準已經改變,至去年發行的規范(A 913/A 913M -01)可能會影響這個標準的使用。（2003，5月10日被批準的）

(1) Section 1 was revid.

第一章已經被修改