Please match Heat-Treated Steels with their hardness HB numbers, according to the charts shown below. a) SAE 1040 WQT at different Temperatures b) SAE 4140 OQT at different Temperatures Strength of Material Treatment: Normalized at 1650F: reheated to 1550'F: quenched in water. 1-in Round Treated 0.505 in Round Tested. As-quenched HB 534. MPa k 1400 1200+ 1000 600 400 200 150 Strength of Material 1800 50 30% 2016 10% Temper, "F 400 500 600 700 800 900 1000 1100 1200 1300 Temper, "C 200 300 400 700 Hardness, HB 514 495 444 401 352 293 269 235 201 187 1600 water-quenched and tempered 1200 1000- 800 Tensile strength 600 Yield point c) SAE 4340 OQT at different Temperatures Treatment: Normalized at 1600°F; reheated to 1475°F. quenched in agitated oil. 0.530-in Round Treated; 0.505-in Round Tested. As-quenched HB 601. MPa ksi 2000 Reduction of area 250 Elongation 150 Properties of heat-treated SAE 1040, 100 70% 50% Tensile strength. Yield pointa Reduction of area 30% 20% 10% Temper, "F 400 500 600 700 800 900 1000 1100 1200 1300 50% 300 400 Temper, "C 200 600 Hardness, HB 555 514 477 461 415 388 363 321 293 700 Strength of Material Properties of heat-treated SAE 4340, oil-quenched and tempered Treatment: Normalized at 1600°F reheated to 1550°F; quenched in agitated oil. 0.530-in Round Treated; 0.505-in Round Tested. As quenched HB 601. 1800 1600 + 1400 200 1200 1000 800 600 + 150 100 Tensile strength XENPERA Rediction of area 70% 60% 50% 30% 206 10% Temper, "F 400 500 600 700 800 900 1000 1100 1200 1300 Temper, "C 200 300 600 Hardness, HB 578 534 495 461 429 388 341 311 277 235 FIGURE A4-4 Properties of heat-treated SAE 4140, oil-quenched and tempered ✓ SAE 1040 WQT 1000 ✓ SAE 4140 OQT 1000 ✓ SAE 4140 OQT 1100 SAE 4340 OQT 800 a. HB = 415 b. HB = 341 c. HB = 311 d. HB = 269

Welding: Principles and Applications (MindTap Course List)

8th Edition

ISBN:9781305494695

Author:Larry Jeffus

Publisher:Larry Jeffus

Chapter27: Weldability Of Metals

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Problem 10R: What is the maximum allowable percentage of manganese in carbon steel as defined by the AISI...

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Please match Heat-Treated Steels with their hardness HB numbers, according to the charts shown below.

a) SAE 1040 WQT at different Temperatures

b) SAE 4140 OQT at different Temperatures

c) SAE 4340 OQT at different Temperatures

	SAE 1040 WQT 1000
	SAE 4140 OQT 1000
	SAE 4140 OQT 1100
	SAE 4340 OQT 800

a.	HB = 415
b.	HB = 341
c.	HB = 311
d.	HB = 269

Please match Heat-Treated Steels with their hardness HB numbers, according to the charts shown below.
a) SAE 1040 WQT at different Temperatures b) SAE 4140 OQT at different Temperatures
Strength of Material
Treatment: Normalized at 1650°F; reheated to 1550°F: quenched in water.
1-in Round Treated: 0.505 in Round Tested. As-quenched HB 534.
MPa ki
200
1200
1000
800
600
400
200
150
100
Strength of Material
MP₂
2000
1800
50
1600
0
Temper, °F 400 500 600 700 800 900 1000 1100 1200 1300
Temper, "C 200 300
Hardness, HB 514 495 444 401 352 293 269 235 201 187
400 500
700
1200
1000
1400 200
800-
Tensile strength
water-quenched and tempered
c) SAE 4340 OQT at different Temperatures
Treatment: Normalized at 1600°F; reheated to 1475°F. quenched in agitated oil.
0.530-in Round Treated; 0.505-in Round Tested As-quenched HB 601.
ksi
600
Yield point
250
Reduction of area
Elongation
150
100
Properties of heat-treated SAE 1040,
70%
50%
40%
30%
20%
10%
Tensile strength
Yield pointy
Reduction of area
oil-quenched and tempered
30%
20%
10%
Temper, "F 400 500 600 700 800 900 1000 1100 1200 1300
Temper, "C 200 300 400 500 600
Hardness, HB 555 514 477 461 415 388 363 321 293
70%
50%
40%
700
Properties of heat-treated SAE 4340,
Strength of Material
Treatment: Normalized at 1600°F; reheated to 1550°F; quenched in agitated oil.
As-quenched HB 601.
0.530-in Round Treated; 0.505-in Round Tested.
MPa ki
1800
1600
1400
1200
1000
800
600+
250
200
150
100
000 062 quais ag
8
Yield paint
Tensile strength
Reduction of area
Dongation,
70%
60%
50%
40%
30%
20%
10%
50
Temper, "F 400 500 600 700 800 900 1000 1100 1200 1300
Temper, "C 200
600 700
Hardness, HB 578 534 495 461 429 388 341 311 277 235
FIGURE A4-4 Properties of heat-treated SAE 4140,
oil-quenched and tempered
✓ SAE 1040 WQT 1000
✓ SAE 4140 OQT 1000
✓ SAE 4140 OQT 1100
✓ SAE 4340 OQT 800
a. HB = 415
b. HB = 341
c. HB = 311
d. HB = 269

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