ASTM A193 Grade B7 Bolts and SA 193 Gr B7 Threaded Rod/ Stud/ Hex Bolt

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SA 193 Gr B7 Stud & ASTM A193 grade B7 threaded rod manufacturer in India

What is ASTM A193 Grade B7 Bolts?

Bolts and nuts are used in a host of applications in almost all industrial applications. There are different standards and specifications for the bolts and nuts to specify their properties and attributes. The ASTM A193 Grade B7 Bolts are made up of a chromium molybdenum material that has high tensile strength and good elongation properties. The ASTM A193 gr b7 bolts can come in a B7M specification as well.

A193 grade b7 stud bolts tensile strength, hardness and temperature range

This is useful to select the bolts for different high pressure and high temperature applications with different strength levels needed. The ASTM A193 grade b7 stud bolts and other types have minimum tensile strength up to 125ksi. The smaller diameter bolts have the highest strength values. The B7M grades have lower tensile strength up to 100ksi. The ASTM A193 grade b7 anchor bolts are used to hold a component anchored onto another surface. They can range up to 105ksi in minimum yield strength. There are different types of bolts and nuts to suit for different types of applications such as the ASTM A193 gr b7 stud bolt. The stud bolts are essentially threaded rods. There are also different varieties of the stud bolt types. The B7 stud bolts have high hardness with 321HBW max while the B7M variation has less hardness of 235HBW max.

Difference between A193 gr B7 and B7m?

There are slight mechanical differences to the two grades of bolts. Hardness testing requirements are also different for both grades. B7M Yield is about 20% less compared to B7, the B7 Bolts Torque will higher from Grade B7M.

	B7	B7M
Tensile strength	125	100
Yield strength	105	80
HBW max	321	235

The two grades have slight differences in the chemical composition which makes them different in the mechanical properties.

ASTM A193 grade B7 Threaded Rod

The ASTM A193 grade b7 threaded rod is used in applications where both components have threads and the fitting is by means of nuts. So there is no need for a head on the bolt. Please feel free to contact us for more information on the different types of the bolts and nuts with prices and other information.

ASTM A193 Grade B7 Bolts

ASTM A193 B7 Threaded Rod and Studs

ASTM A193 Gr B7 Hex Bolt

A193 B7 Stud Bolt

ASTM A193 Grade B7 Nuts

ASTM A193 B7 Studs

Check A193 B7 Hex Bolts & ASME SA193 Gr B7 Stud Bolts Price List & size range

ASTM A193 Grade B7 Bolts Price List India
B7 Stud Bolts specification
Types of ASTM A193 Grade B7 Bolts
SA 193 B7 Nuts Types
ASTM A193 Gr B7 Screws Types
Types of Grade B7 Threaded Rod and Studs
Different types of ASME SA193 Grade B7 Washers
ASTM A193 grade B7 Bolt dimensions
B7 Stud Bolt Dimensions
ASTM A193 B7 Hex Nut Dimensions Metric
Alloy Steel ASTM A193 gr B7 Washer Dimensions
ASTM A193 B7 Bolt Torque Chart
ASTM A193 Grade B7 Bolts chemical composition
Alloy Steel ASTM A193 Grade B7 Mechanical Properties
ASTM A193 Grade B7 equivalent

ASTM A193 Grade B7 Bolts Price List India

Drawn or Turned M12 - M56 size A193 B7 Stud Bolt, A193 Grade B7 Anchor Bolts & SA 193 B7 material supplier in Mumbai

ASTM A193 GR. B7 FULL THREAD HEX BOLT PRICE LIST EX MUMBAI (INDIA)

Price in INR/ PCS

Dia	M 10	M 12	M 14	M 16	M 18	M 20	M 22	M 24	M 27	M 30	M 33	M 39
Length	M 10	M 12	M 14	M 16	M 18	M 20	M 22	M 24	M 27	M 30	M 33	M 39
25	9.00	-	-	-	-	-	-	-	-	-	-	-
30	9.90	14.00	-	-	-	-	-	-	-	-	-	-
40	11.60	15.00	26.00	26.50	48.00	56.00	-	-	-	-	-	-
50	13.40	17.00	27.00	30.00	49.00	57.00	-	-	-	-	-	-
60	15.20	19.00	28.20	34.60	50.00	58.00	104.00	102.00	158.00	-	-	-
70	16.90	22.00	33.00	38.20	58.20	64.50	106.50	105.00	158.00	-	-	-
80	19.00	24.40	34.50	42.50	60.50	70.70	108.00	107.50	160.00	217.00	-	-
90	20.50	26.70	39.50	46.80	69.00	76.50	110.00	116.00	163.00	222.00	-	-
100	22.20	29.00	41.00	50.00	71.20	82.90	112.50	123.50	176.00	228.00	345.00	-
110	-	32.00	-	53.70	80.00	88.00	130.00	132.00	187.50	257.00	350.00	-
120	-	33.00	-	58.20	85.00	93.50	133.50	145.00	208.00	268.00	356.00	-
125	-	-	-	60.00	86.00	97.00	136.20	150.00	213.00	272.00	360.00	-
130	-	-	-	61.40	93.00	100.00	140.00	158.00	218.00	292.00	362.00	-
140	-	-	-	67.00	94.00	109.00	155.00	162.00	224.00	297.00	373.00	-
150	-	-	-	69.00	95.00	111.50	157.00	167.00	238.00	304.00	380.00	930.00
160	-	-	-	78.00	-	128.00	-	185.50	255.00	330.00	400.00	940.00
170	-	-	-	86.00	-	134.00	-	191.00	262.00	338.00	430.00	1000.00
180	-	-	-	86.00	-	138.50	-	210.00	272.00	345.00	443.00	1020.00
200	-	-	-	95.00	-	150.00	-	225.00	300.00	380.00	470.00	1110.00

For more call us or send us an email to sales@jigneshsteel.com.

B7 Stud Bolts specification

SA 193 Grade B7 Bolts	ANSI B18.2.1, B18.3, DIN 931/ 933
ASTM A193 Grade B7 Hex Bolts Size Metric	Dia: M10 - M110 Length: 12 - 1200MM
SA 193 B7 Hex Bolts Size Inch	Dia: 1/2" - 4.0" Length: 1/2" - 52"
ASTM A193 Gr B7 Eye Bolts Metric Size	Dia: M10 - M48
A193 B7 Stud Bolt Metric Size	Dia: M10 - M110 Length: 12 mm - 6000 mm
ASME SA193 Grade B7 Stud Bolt Inch	Dia: 1/2" - 4.1/2" Length: 1/2" - 236"
AISI 4140 A193 B7 Hex Nut (DIA)	Metric: M6 - M110 Inch: 1/4" - 4.5"
ASME SA193 Gr B7 Plain Washer (DIA)	Metric: M6 - M110 Inch: 1/2" - 4.1/2"
ASTM A193 Grade B7 Bolts International Standard	IS, ANSI, ASTM DIN, ISO, JIS, GB, ASME, BS, UNI
ASTM A193 B7 Bolts Standard Sizes	M10, M4, M16, M36 M2.5, M6, M30, M12, M8, M14, M2, M3, M20, M24, M5 to M160
Alloy Steel ASTM A193 gr B7 Fasteners Threads	BSF, UNF METRIC, UNC, UNEF, BSW or as required
ASME/ ANSI - American Standard ASTM A193 Grade B7 Bolts	ANSI B 28.2.4 1M ANSI B 18.2.4 2M ASME B18.5 ASME B18.2.2
DIN German Standard ASTM A193 Grade B7 Bolts	DIN 933, DIN 931, DIN 970, DIN 934
ISO Standard A193 B7 Bolts	ISO 4033, : ISO 4032, JIS standards
ASTM A193 Grade B7 Alloy Steel Bolts / Screws Head Drive	Phillips, Slotted, Phillips/Slot, Six-Lobe
MTC (Manufacturer Test Certificate)	EN 10204 / 3.1, NACE MR0103 / MR0175 / ISO 15156 Compliance
A193 Grade B7 Nut Bolt Finishing	Zinc white, (yellow, black, blue), black oxide, Dacroment, Geometry, plated zinc-nickel, anodizing, nickel plated, Stainless steel: Passivated Self-Colour, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Sherardized, DACROMET and Mechanically Applied coating
Grade B7 Alloy Steel Fasteners Production Process	M2-M24: Cold Forging, hot forging M24-M100, machining and CNC for Customized connecting element
ASTM A193 Grade B7 Bolts Coating	Xylon Coated Fasteners Phosphate Coated Fasteners Hot Dipped Galvanizing Coated Fasteners Teflon Coated Fasteners Zinc Coated Fasteners Cadmium Coated Fasteners Ptfe Coated (Teflon) Fasteners
A193 Gr B7 Fasteners Packing	Wooden Pallet, Canton, Carton / Small Box or as required

Relevant Grades

ASTM	Grade	Description
ASTM A193	B7	AISI 4140/ 4142 Alloy steel quenched and tempered
ASTM A193	B7m	AISI 4140/ 4142 Alloy steel quenched and tempered
ASTM A193	B8	AISI 304 Class 1 Stainless steel,, carbide solution treated.
ASTM A193	B8M	AISI 316 Class 1 Stainless steel, carbide solution treated.
ASTM A193	B8	AISI 304 Class 2 Stainless steel, carbide solution treated, strain hardened
ASTM A193	B8M	AISI 316 Class 2 Stainless steel, carbide solution treated, strain hardened

Types of ASTM A193 Grade B7 Bolts

A193 Gr B7 Bolts, ASTM A193 Grade B7 Hex Bolts and ASME SA193 B7 Tie Rods and Nuts M12 to M56 suitable up to 450° temperature, Stud bolt a193 b7 with A194 2h nuts supplier

SA 193 Grade B7 Flange Bolts

ASTM A193 Grade B7 Heavy Hex Bolts

SA 193 B7 Hex Bolts

ASTM A193 Gr B7 Eye Bolts

SA 193 Gr B7 Lag Bolts

ASME SA193 Grade B7 Square Bolts

AISI 4140 A193 B7 U Bolts

ASME SA193 Gr B7 Anchor Bolts

ASTM A193 B7 Hex Head Bolts

Alloy Steel ASTM A193 gr B7 Carriage Bolts

A193 B7 Allen Cap Bolt

ASTM A193 Grade B7 Alloy Steel Countersunk Bolts

SA 193 B7 Nuts Types

SA 193 Grade B7 Hex Nuts

ASTM A193 Grade B7 Heavy Hex Nuts

SA 193 B7 Castle Nuts

ASTM A193 Gr B7 Hex Jam Nuts

SA 193 Gr B7 Heavy Jam Nuts

ASME SA193 Grade B7 Hex Coupling Nuts

AISI 4140 A193 B7 Sleeve Nuts

ASME SA193 Gr B7 Lock Nuts

ASTM A193 B7 Rivet Nuts

Alloy Steel ASTM A193 gr B7 Lug Nuts

A193 B7 Tee Nut

ASTM A193 Grade B7 Alloy Steel Nylon Insert Hex Lock Nuts

ASTM A193 Gr B7 Screws Types

A193 Grade B7 Self Drilling Screws

Grade B7 Alloy Steel Self Tapping Screws

A193 Gr B7 Set Screws

ASME SA193 B7 Socket Head Cap Screw

SA 193 Grade B7 Dowel Screw

ASTM A193 Grade B7 Countersunk Screws

SA 193 B7 Socket Set Screw

ASTM A193 Gr B7 Wood Screw

Types of Grade B7 Threaded Rod and Studs

Stud Bolt ASTM A193 Grade B7 for Petrochemical industry, SA 193 Gr B7 Fasteners & AISI 4140 A193 Gr B7 Double Ended Studs exporter in India

SA 193 Grade B7 Stud Bolts

ASTM A193 Grade B7 Double Ended Studs

ASTM A193 Gr B7 Fully Threaded Studs

A193 B7 Studs

ASME SA193 Grade B7 Unc Stud Bolt

Different types of ASME SA193 Grade B7 Washers

SA 193 Grade B7 Flat Washers

ASTM A193 Grade B7 Lock Washer

SA 193 B7 Spring Washer

ASTM A193 Gr B7 Washers

SA 193 Gr B7 Split Washers

ASME SA193 Grade B7 Dock Washers

AISI 4140 A193 B7 Star Washers

ASME SA193 Gr B7 Belleville Washers

ASTM A193 B7 Fender Washer

Alloy Steel ASTM A193 gr B7 Square Washers

A193 B7 Spherical Washer

ASTM A193 grade B7 Bolt dimensions

Hexagon Head Bolt with Nut DIN555 DIN601, ASME SA193 Grade B7, Metric Coarse

D	k nom	k Max	Min	s max	s min	e nom	e Max	Min	shank Max	shank Min	washer Max	washer Min
M1.6	1.1000	1.2250	0.9750	3.2000	3.0800	3.4100	3.7000	3.4800	1.6000	1.4600	-	-
M2	1.4000	1.5250	1.2750	4.0000	3.8800	4.3200	4.6000	4.3800	2.0000	1.8600	-	-
M2.5	1.7000	1.8250	1.5750	5.0000	4.8800	5.4500	5.8000	5.5100	2.5000	2.2300	-	-
M3	2.0000	2.1250	1.8750	5.5000	5.3800	6.0100	6.4000	6.0800	3.0000	2.8600	5.0800	4.8300
M3.5	2.4000			6.0000		6.5800
M4	2.8000	2.9250	2.6750	7.0000	6.8500	7.6600	8.1000	7.7400	4.0000	3.8200	6.5500	6.3000
M5	3.5000	3.6500	3.3500	8.0000	7.8500	8.7900	9.2000	8.8700	5.0000	4.8200	7.5500	7.3000
M6	4.0000	4.1500	3.8500	10.0000	9.7800	11.0500	11.5000	11.0500	6.0000	5.8200	9.4800	9.2300
M7	4.8000			11.0000		12.1200
M8	5.3000	5.6500	5.3500	13.0000	12.7300	14.3800	15.0000	14.3800	8.0000	7.7800	12.4300	12.1800
M10	6.4000	7.1800	6.8200	17.0000	16.7300	18.9000	19.6000	18.9000	10.0000	9.7800	16.4300	16.1800
M12	7.5000	8.1800	7.8200	19.0000	18.6700	21.1000	21.9000	21.1000	12.0000	11.7300	18.3700	18.1200
M14	8.8000	9.1800	8.8200	22.0000	21.6700	24.4900	25.4000	24.4900	14.0000	13.7300	21.3700	21.1200
M16	10.0000	10.1800	9.8200	24.0000	23.6700	26.7500	27.7000	26.7500	16.0000	15.7300	23.2700	23.0200
M18	11.5000	12.2150	11.7850	27.0000	26.6700	30.1400	31.2000	30.1400	18.0000	17.7300	26.2700	26.0200
M20	12.5000	13.2150	12.7850	30.0000	29.6700	33.5300	34.6000	33.5300	20.0000	19.6700	29.2700	28.8000
M22	14.0000	14.2150	13.7850	32.0000	31.6100	35.7200	36.9000	35.7200	22.0000	21.6700	31.2100	30.7400
M24	15.0000	15.2150	14.7850	36.0000	35.3800	39.9800	41.6000	39.9800	24.0000	23.6700	34.9800	34.5100
M27	17.0000	17.2150	16.7850	41.0000	40.3800	45.2000	47.3000	45.6300	27.0000	26.6700	39.9800	39.3600
M30	18.7000	19.2600	18.7400	46.0000	45.3800	50.8500	53.1000	51.2800	30.0000	29.6700	44.9800	44.3600
M33	21.0000	21.2600	20.7400	50.0000	49.3800	55.3700	57.7000	55.8000	33.0000	32.6100	48.9800	48.3600
M36	22.5000	23.2600	22.7400	55.0000	54.2600	60.7900	63.5000	61.3100	36.0000	35.6100	53.8600	53.2400
M39	25.0000	25.2600	24.7400	60.0000	59.2600	66.4000	69.3000	66.9600	39.0000	38.6100	58.8600	58.2400
M42	26.0000	26.2600	25.7400	65.0000	64.2600	71.3000	75.1000	72.6100	42.0000	41.6100	63.7600	63.0400
M45	28.0000	28.2600	27.7400	70.0000	69.2600	76.9500	80.8000	78.2600	45.0000	44.6100	68.7600	68.0400
M48	30.0000	30.2600	29.7400	75.0000	74.2600	82.6000	86.6000	83.9100	48.0000	47.6100	73.7600	73.0400
M52	33.0000	33.2100	32.6900	80.0000	79.2600	88.3000	92.4000	89.5600	52.0000	51.5400	-	-
M56	35.0000	35.3100	34.6900	85.0000	84.1300	93.6300	98.1000	95.0700	56.0000	55.5400	-	-
M60	38.0000	38.3100	37.6900	90.0000	89.1300	99.3500	103.9000	100.7200	60.0000	59.5400	-	-
M64	40.0000	40.3100	39.6900	95.0000	94.1300	104.9800	109.7000	106.3700	64.0000	63.5400	-	-
M68	43.0000	43.3100	42.6900	100.0000	99.1300	110.5000	115.5000	112.0200	68.0000	67.5400	-	-
M72	45.0000			105.0000	102.8000	116.0300				71.2600
M76	48.0000			110.0000	107.8000	121.5500				75.2600
M80	50.0000			115.0000		127.3000				79.2600
M90	57.0000			130.0000		144.0000				89.1300
M100	63.0000			145.0000		161.0000				99.1300
M110	69.0000			155.0000		171.2800				109.1300
M125	79.0000			180.0000		198.9000				124.0000
M140	88.0000			200.0000		221.0000				139.0000
M160	100.0000			230.0000		254.1500				159.0000

B7 Stud Bolt Dimensions

DIN940 Stud End =2.1/2 D Sk6, SA 193 Gr B7, Metric Coarse

d	b	c l<125	c l<125<200	c l 200>
M3	7.5000	12.0000	18.0000
M4	10.0000	14.0000	20.0000
M5	12.5000	16.0000	22.0000
M6	15.0000	18.0000	24.0000	37.0000
M7	17.5000	20.0000	26.0000	39.0000
M8	20.0000	22.0000	28.0000	41.0000
M10	25.0000	26.0000	32.0000	45.0000
M12	30.0000	30.0000	36.0000	49.0000
M14	35.0000	34.0000	40.0000	53.0000
M16	40.0000	38.0000	44.0000	57.0000
M18	45.0000	42.0000	48.0000	61.0000
M20	50.0000	46.0000	52.0000	65.0000
M22	55.0000	50.0000	56.0000	69.0000
M24	60.0000	54.0000	60.0000	73.0000
M27	67.5000	60.0000	66.0000	79.0000
M30	75.0000	66.0000	72.0000	85.0000
M33	82.5000	72.0000	78.0000	91.0000
M36	90.0000	78.0000	84.0000	97.0000

ASTM A193 B7 Hex Nut Dimensions Metric

Hexagon Full Nut ASTM A193 Gr B7 DIN934, Metric Coarse

d	s	e	m
M1.2	3.0000	3.2900	1.0000
M1.4	3.0000	3.2900	1.2000
M1.6	3.2000	3.4800	1.3000
M1.7	3.5000	3.8200	1.4000
M2	4.0000	4.3200	1.6000
M2.3	4.5000	4.9500	1.8000
M2.5	5.0000	5.4500	2.0000
M2.6	5.0000	5.5100	2.0000
M3	5.5000	6.0100	2.4000
M3.5	6.0000	6.0100	2.8000
M4	7.0000	7.6600	3.2000
M5	8.0000	8.7600	4.0000
M6	10.0000	11.0500	5.0000
M7	11.0000	12.1200	5.5000
M8	13.0000	14.3800	6.5000
M10	17.0000	18.9000	8.0000
M12	19.0000	21.1000	10.0000
M14	22.0000	24.4900	11.0000
M16	24.0000	26.7500	13.0000
M18	27.0000	29.5600	15.0000
M20	30.0000	32.9500	16.0000
M22	32.0000	35.0300	18.0000
M24	36.0000	39.5500	19.0000
M27	41.0000	45.2000	22.0000
M30	46.0000	50.8500	24.0000
M33	50.0000	55.3700	26.0000
M36	55.0000	60.7900	29.0000
M39	60.0000	66.4400	31.0000
M42	65.0000	71.3000	34.0000
M45	70.0000	76.9500	36.0000
M48	75.0000	82.6000	38.0000
M52	80.0000	88.2500	42.0000
M56	85.0000	95.0700	45.0000
M60	90.0000	100.7200	48.0000
M64	95.0000	106.3700	51.0000
M68	100.0000	112.0200	54.0000
M72	105.0000	117.6700	58.0000
M76	110.0000	123.3200	61.0000
M80	115.0000	128.9700	64.0000
M85	120.0000	133.1100	68.0000
M90	130.0000	145.7700	72.0000
M95	135.0000	151.4200	76.0000
M100	145.0000	162.7200	80.0000
M110	155.0000	174.0200	88.0000
M115	165.0000	185.3200	92.0000
M120	170.0000	190.9700	96.0000
M125	180.0000	202.2700	100.0000
M130	185.0000	207.7500	104.0000
M135	190.0000	213.4000	108.0000
M140	200.0000	224.7000	112.0000
M145	210.0000	236.0000	116.0000
M150	210.0000	236.0000	120.0000

Alloy Steel ASTM A193 gr B7 Washer Dimensions

Metric Type A Flat Washer AISI 4140 A193 B7 DIN 125A

D	d1	d2	h
M1	1.1000	3.0000	0.3000
M1.2	1.3000	3.5000	0.3000
M1.4	1.5000	4.0000	0.3000
M1.6	1.7000	4.0000	0.3000
M1.7	1.8000	4.5000	0.3000
M2	2.2000	5.0000	0.3000
M2.3	2.5000	6.0000	0.5000
M2.5	2.7000	6.0000	0.5000
M2.6	2.8000	7.0000	0.5000
M3	3.2000	7.0000	0.5000
M3.5	3.7000	8.0000	0.5000
M4	4.3000	9.0000	0.8000
M5	5.3000	10.0000	1.0000
M6	6.4000	12.0000	1.6000
M7	7.4000	14.0000	1.6000
M8	8.4000	16.0000	1.6000
M10	10.5000	20.0000	2.0000
M12	13.0000	24.0000	2.5000
M14	15.0000	28.0000	2.5000
M16	17.0000	30.0000	3.0000
M18	19.0000	34.0000	3.0000
M20	21.0000	37.0000	3.0000
M22	23.0000	39.0000	3.0000
M24	25.0000	44.0000	4.0000
M27	28.0000	50.0000	4.0000
M30	31.0000	56.0000	4.0000
M33	34.0000	60.0000	5.0000
M36	37.0000	6.0000	5.0000
M39	40.0000	72.0000	6.0000
M42	43.0000	78.0000	7.0000
M45	46.0000	85.0000	7.0000
M48	50.0000	92.0000	8.0000
M52	54.0000	98.0000	8.0000
M55	57.0000	105.0000	9.0000
M56	58.0000	105.0000	9.0000
M58	60.0000	110.0000	9.0000
M60	62.0000	110.0000	9.0000
M64	66.0000	115.0000	9.0000
M68	70.0000	120.0000	10.0000
M72	74.0000	125.0000	10.0000
M76	78.0000	135.0000	10.0000
M80	82.0000	140.0000	12.0000
M85	87.0000	145.0000	12.0000
M90	93.0000	160.0000	12.0000
M95	98.0000	165.0000	12.0000
M100	104.0000	175.0000	14.0000
M105	109.0000	180.0000	14.0000
M110	114.0000	185.0000	14.0000
M115	119.0000	200.0000	14.0000
M120	124.0000	210.0000	16.0000
M125	129.0000	220.0000	16.0000
M130	134.0000	230.0000	16.0000
M135	139.0000	230.0000	16.0000
M140	144.0000	240.0000	18.0000
M145	149.0000	250.0000	18.0000
M150	155.0000	250.0000	18.0000
M160	165.0000	250.0000	18.0000

ASTM A193 B7 Bolt Torque Chart

Size of Bolt	TPI	Proof Load (lbs)	Clamp Load (lbs)	Tightening Torque (ft lbs)
Size of Bolt	TPI	Proof Load (lbs)	Clamp Load (lbs)	Galv+Waxed	Galv	Plain
1/4	20	3,350	2,513	5	13	10
5/16	18	5,500	4,125	11	27	21
3/8	16	8,150	6,113	19	48	38
7/16	14	11,150	8,363	30	76	61
1/2	13	14,900	11,175	47	116	93
9/16	12	19,100	14,325	67	168	134
5/8	11	23,750	17,813	93	232	186
3/4	10	35,050	26,288	164	411	329
7/8	9	48,500	36,375	265	663	530
1	8	63,650	47,738	398	995	796
11/8	7	80,100	60,075	563	1,408	1,126
11/8	8	82,934	62,201	583	1,458	1,166
11/4	7	101,750	76,313	795	1,987	1,590
11/4	8	105,006	78,754	820	2,051	1,641
13/8	6	121,300	90,975	1,042	2,606	2,085
13/8	8	129,492	97,119	1,113	2,782	2,226
11/2	6	147,550	110,663	1,383	3,458	2,767
11/2	8	156,687	117,515	1,469	3,672	2,938
13/4	5	199,500	149,625	2,182	5,455	4,364
13/4	8	218,400	163,800	-	-	4,778
2	41/2	262,500	196,875	3,281	8,203	6,563
2	8	290,850	218,138	-	-	7,271
21/4	41/2	341,250	255,938	4,799	11,997	9,598
21/4	8	373,801	280,351	-	-	10,513
21/2	4	420,000	315,000	6,563	16,406	13,125
21/2	8	466,200	349,650	-	-	14,569
23/4	4	468,500	351,263	8,050	20,124	16,100
23/4	8	515,851	386,888	-	-	17,732
3	4	567,150	425,363	10,634	26,585	21,268
3	8	618,451	463,838	-	-	23,192
31/4	4	674,500	505,875	13,701	34,252	27,402
31/4	8	730,550	547,913	-	-	29,679
31/2	4	791,350	593,513	17,311	43,277	34,622
31/2	8	851,201	638,401	-	-	37,240
33/4	4	917700	688275	21,509	53,771	43,017
33/4	8	982,300	736,725	-	-	46,045
4	4	1052600	789450	26,315	65,788	52,630
4	8	1,121,950	841,463	-	-	56,098

PTFE Coated ASTM 193 Grade B7 bolts & Stud with K=0.12. Torque FT-LBS

B7 BOLT SIZE	Torque FT-LBS
B7 BOLT SIZE	30% Initial Torque	70% Torque	100% Final Torque
1/2	12	29	41
9/16	18	41	59
5/8	24	57	82
3/4	43	101	145
7/8	70	163	233
1	105	245	350
1.1/8	154	359	513
1¼	217	505	722
1.3/8	294	685	979
1½	388	905	1292
1.9/16	441	1030	1471
1.5/8	501	1169	1670
1¾	631	1471	2102
1.7/8	783	1827	2610
2	960	2240	3199
2¼	1388	3238	4626
2½	1923	4487	6410
2¾	2341	5462	7802
3	3061	7143	10204

PTFE Coated ASTM 193 Grade B7 bolts & Stud with K=0.12. Torque Nm

B7 BOLT SIZE	Torque Nm
B7 BOLT SIZE	30% Initial Torque	70% Torque	100% Final Torque
1/2	16	39	56
9/16	24	56	80
5/8	33	77	111
3/4	58	137	197
7/8	95	221	316
1	142	332	475
1.1/8	209	487	696
1¼	294	685	979
1.3/8	399	929	1327
1½	526	1227	1752
1.9/16	598	1396	1994
1.5/8	679	1585	2264
1¾	856	1994	2850
1.7/8	1062	2477	3539
2	1302	3037	4337
2¼	1882	4390	6272
2½	2607	6084	8691
2¾	3174	7405	10578
3	4150	9685	13835

ASTM A193 Grade B7 Bolts chemical composition

Element	Grade B7 Bolts (AISI 4140)
Carbon (C)	0.38 - 0.48%
Manganese	0.75 - 1.00%
Phosphorus, max	0.035%
Sulfur, max	0.040%
Silicon	0.15 - 0.35%
Chromium	0.80 - 1.10%
Nickel (Ni)
Molybdenum	0.15 - 0.25%

Alloy Steel ASTM A193 Grade B7 Mechanical Properties

Grade	Size	Tensile Stress ksi, min	Yield Strength, ksi, min	Elong, %, min	RA % min	HBW	HRC
B7 Bolts	Up to 2-1/2	125	105	16	50	321 max	35 max
	2-5/8 - 4	115	95	16	50
	4-1/8 - 7	100	75	18	50

ASTM A193 Grade B7 equivalent

YB 6 Grade 42CrMo
AS G18 Grade En19A
AS G18 Grade En19
AS 1444 Grade 4140
AS 1444 Grade 4140H
GOST 8479 Grade 38KhM
GOST 8479 Grade 40KhMFA
GOST 8479 Grade 40KhFA
GOST 4543 Grade 38KhM
GOST 4543 Grade 40KhMFA
GOST 4543 Grade 40KhFA
EURONORM 119-3 Grade 42CrMo4KD
NBN 253-02 Grade 42CrMo4
NBN 253-02 Grade 41CrMo4
NBN 253-06 Grade 41CrMo4

DIN 17205 Grade GS-42CrMo4
DIN 1652-4 Grade 42CrMo4
DIN 1654-4 Grade 42CrMo4
DIN 17204 Grade 42CrMo4
DIN 17212 Grade 41CrMo4
BDS 6354 Grade 40ChMA
BDS 6550 Grade 40ChML
SEW 550 Grade 42CrMo4
SEW 835 Grade GS-42CrMo4
EN 10083-1 Grade 42CrMo4
CSN 422843
CSN 415142 Grade 15142
EURONORM 83 Grade 42CrMo4
EURONORM 86 Grade 41CrMo4
EURONORM 119-4 Grade 42CrMo4KD

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