ASME B18.2.1 Stud Bolt ASME B18.2.2 Hex Nuts

• Customization: Available
• Material: Carbon Steel
• Type: Round Head
• Model NO.: ASME B18.2.1
• Head Style: Round
• Standard: DIN, ANSI, JIS, GOST
• Grade: B6
• Application: Machinery
• Finish: Polishing
• Other Material: ASTM A193 Grade B8 Class 1 ASTM A193 Grade B8 Clas
• Transport Package: Plywood Box, Plywood Case, Wooden Pallet
• Specification: A193 Grade B8 Class 1 Stud bolt A194 Grade 8 Nut
• Trademark: C&N
• Origin: China
• Production Capacity: 1000tons/Month

Product Description

ANSI/ASME b18.2.1 Fully Threaded Stud Bolts

ASME B18.2.2 Hex Nuts

ASME B18.2.1 Stud Bolt &ASME B18.2.2 hex  nuts

Type:  Stud Bolts and Nuts.
Material:  ASTM A193 B7, ASTM A194 2H.
Standard: ASME B18.2.1, ASME B18.2.2.

I. Strength Grades

DIN 931/933	Grade 4.6, 4.8, 5.6, 5.8, 8.8, 10.9, 12.9
DIN 931/933	SUS 304, 316
ASTM A307	Grade A & B
ASTM A320, A320M	Grade L7, L7M, B8, B8M
ASTM A325, A325M	Grade 8.8
ASTM A490, A490M	Grade 10.9
ASTM A193/A193M	Grade B7, B7M, B8, B8M, B16

Surface Treatments

1. Plating
   • Zinc (White / Yellow / Black)
   • Cadmium (White / Yellow / Black)
   • Zinc Nickel

1. Galvanising
   • Hot-Dipped Galvanise
   • Mechanical Galvanise

1. Fluorocarbon Coating
   Xylan® / PTFE Coating Systems:
   • Xylar 2
   • 1070
   • 1424
2. Customised Coating Systems
   • Zinc + Fluorocarbon / PTFE
   • Cadmium + Fluorocarbon /PTFE
   • Zinc Nickel + Fluorocarbon /PTFE
   • Zinc Plating + Xylan 1424 Blue coated stud bolt
   • Xylar 2 + Xylan 1070 Blue coated stud bolt

STAINLESS STEEL

A193 B6 - Heat treated 410 stainless (410HT)

A193 B8 - Produced to grade AISI 304, carbide solution treated, standardly available in class 1

A193 B8M - Produced to grade AISI 316, carbide solution treated, standardly available in class 1

A193 B8C- Grade 347 stainless material

A193 B8T - Grade 321 stainless material

A320 B8 - Produced to grade AISI 304, carbide solution treated, standardly available in class 1

A320 B8M - Produced to grade AISI 316, carbide solution treated, standardly available in class 1

B7	Alloy steel, AISI 4140/4142 quenched and tempered
B8	Class 1 Stainless steel, AISI 304, carbide solution treated.
B8M	Class 1 Stainless steel, AISI 316, carbide solution treated.
B8	Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened
B8M	Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened
B16	A heat-treated chromium-molybdenum-vanadium steel for high-pressure, high-temperature service.

Mechanical Properties
Bolt -Grade Identification Markings

Grade	Size	Tensile ksi, min	Yield, ksi, min	Elong, %, min	RA % min
B7	Up to 2-1/2	125	105	16	50
	2-5/8 - 4	115	95	16	50
	4-1/8 - 7	100	75	18	50
B8 Class 1	All	75	30	30	50
B8M Class 1	All	75	30	30	50
B8 Class 2	Up to 3/4	125	100	12	35
	7/8 - 1	115	80	15	35
	1-1/8 - 1-1/4	105	65	20	35
	1-3/8 - 1-1/2	100	50	28	45
B8M Class 2	Up to 3/4	110	95	15	45
	7/8 - 1	100	80	20	45
	1-1/8 - 1-1/4	95	65	25	45
	1-3/8 - 1-1/2	90	50	30	45
B16	Up to 2-1/2	125	105	18	50
	2-5/8 - 4	110	95	17	45
	4-1/8 - 7	100	85	16	45

Material Chemical Composition

Element	B7 (AISI 4140)	B8 (AISI 304)	B8M (AISI 316)	B16 (AISI 4140)
Carbon	0.37 - 0.49%	0.08% max	0.08% max	0.37 - 0.49%
Manganese	0.65 - 1.10%	2.00% max	2.00% max	0.65 - 1.10%
Phosphorus, max	0.035%	0.045%	0.045%	0.035%
Sulfur, max	0.040%	0.030%	0.030%	0.040%
Silicon	0.15 - 0.35%	1.00% max	1.00% max	0.15 - 0.35%
Chromium	0.75 - 1.20%	18.0 - 20.0%	16.0 - 18.0%	0.75 - 1.20%
Nickel		8.0 - 11.0%	10.0 - 14.0%
Molybdenum	0.15 - 0.25%		2.00 - 3.00%	0.15 - 0.25%

Recommended Nuts,Bolts & Washer

Bolt Grade	Nuts	Washers
B7	A194 Grade 2H	F436
B8 Class 1	A194 Grade 8	SS304
B8M Class 1	A194 Grade 8M	SS316
B8 Class 2	A194 Grade 8	SS304
B8M Class 2	A194 Grade 8M	SS316