ASTM A320 L7 Full Threaded Rod / ASTM A320 L7 Alloy Steel

Model NO.
astm a320 l7
Finish
Black
Property
A320 L7
Other Grade
A193 B7 B7m, A320 L7, L7m, L43...
Types
Full Threaded Rod
commodity
A320 L7 Threaded Rods
Transport Package
Wooven Cloth, Then Pallet
Specification
1/4′′ to 4′′
Origin
China
HS Code
73181900
Production Capacity
3000tons/Month
Reference Price
$ 900.00 - 1,350.00
Contact Us

Product Description

astm a320 l7 Full Threaded Rod / ASTM A320 L7 Alloy steel

The  ASTM A320  specification covers alloy steel and stainless steel bolting materials for low temperature service. This standard covers rolled, forged, or strain hardened bars, bolts, screws, studs, and stud bolts used for pressure vessels, valves, flanges, and fittings. 

1.Specifications and materials 
dentification L7, L7M, L70 L7A, L71 L7B, L72 L43
Grade Chromium- Molybdenum 
(AISI 4140, 4142, or 4145) 		Carbon- Molybdenum
 (AISI 4037) 		Chromium- 
Molybdenum
 (AISI 4137) 		Nickel-Chromium- 
(AISI 4340)

2.Chemical composition of A320 L7 steels.:
Element L7 (AISI 4140) L43 (AISI 4340) B8 (AISI 304) B8M (AISI 316)
Carbon 0.37 - 0.49% 0.38 - 0.43% 0.08% max 0.08% max
Manganese 0.65 - 1.10% 0.75 - 1.00% 2.00% max 2.00% max
Phosphorus, max 0.04% 0.04% 0.05% 0.05%
Sulfur, max 0.04% 0.04% 0.03% 0.03%
Silicon 0.15 - 0.35% 0.15 - 0.35% 1.00% max 1.00% max
Chromium 0.75 - 1.20% 0.70 - 0.90% 18.0 - 20.0% 16.0 - 18.0%
Nickel   1.65 - 2.00% 8.0 - 11.0% 10.0 - 14.0%
Molybdenum 0.15 - 0.25% 0.20 - 0.30%   2.00 - 3.00%

3.Mechanical properties of A320 L7,L7ML43 and so on. .
Grade and Class Diameter Heat Treatment Tensile Str
 Min KSI 		Yield Str 0.2%
Offset KSI 		Elongation 
in 2in. Min, % 		Reduction of
 Area Min, % 		Hardness
 max
FERRITIC STEELS              
L7, L7A, L7B, L7C, L70,
 L71, L72, L73 		2-1/2" and under quench and tempered 125 105 16 50  
L43 4" and under quench and tempered 125 105 16 50  
L7M 2-1/2" and under quench and tempered 
@ 1150F, min 		100 80 18 50 235 HB / 99HRB
L1 1" and under quench and tempered 125 105 16 50  
AUSTENTIC STEELS              
CLASS 1: B8, B8C, B8M, 
B8P, B8F, B8T, B8LN, B8MLN 		ALL carbide solution treated 75 30 30 50 223 HB or 96 HRB
CLASS 1A: B8A, B8CA, 
B8MA, B8PA, B8FA, B8TA, 
B8LNA, B8MLNA 		ALL carbide solution treated 75 30 30 50 192 HB or 90 HRB
CLASS 2: B8, B8C, B8P,
B8F, B8T 		3/4" and under carbide solution treated 
and strain hardened 		125 100 12 35 321 HB or 35 HRC
  over 3/4 to 1" incl   115 80 15 30 321 HB or 35 HRC
  over 1" to 1-1/4" incl   105 65 20 35 321 HB or 35 HRC
  over 1-1/4" to 1-1/2" incl   100 50 28 45 321 HB or 35 HRC
CLASS 2: B8M 3/4" and under carbide solution treated 
and strain hardened 		110 95 15 45 321 HB or 35 HRC
  over 3/4 to 1" incl   100 80 20 45 321 HB or 35 HRC
  over 1" to 1-1/4" incl   95 65 25 45 321 HB or 35 HRC
  over 1-1/4" to 1-1/2" incl   90 50 30 45 321 HB or 35 HRC

4.Sizes we can also for full Threaded rods:   1/4'' to 4''

5.MOQ:  Normally we don't have any MOQ requirements, because we produce threaded rods for big quantity every month

6.Delivery time  : 7-30 days upon to the sizes & quantity.

7.Paytemtn term:  TT or LC, West union ...

8.Quantity control:

We company have good QC inspection tear and full set of inspect equipment including: UT test machine, Tensile testing machine,Hardness testing machine,Dimensional measuring instrument,f,spectrometer,Metallographic microscope and so on, so that we can always supply good mateterials for various projects and industries , if you have any need for our producrs,please contact us freely.

Ms.Phoebe Chen
 
     

ASTM A320 L7 Full Threaded Rod / ASTM A320 L7 Alloy Steel
ASTM A320 L7 Full Threaded Rod / ASTM A320 L7 Alloy Steel
ASTM A320 L7 Full Threaded Rod / ASTM A320 L7 Alloy Steel
ASTM A320 L7 Full Threaded Rod / ASTM A320 L7 Alloy Steel
ASTM A320 L7 Full Threaded Rod / ASTM A320 L7 Alloy Steel
ASTM A320 L7 Full Threaded Rod / ASTM A320 L7 Alloy Steel
ASTM A320 L7 Full Threaded Rod / ASTM A320 L7 Alloy Steel
ASTM A320 L7 Full Threaded Rod / ASTM A320 L7 Alloy Steel
ASTM A320 L7 Full Threaded Rod / ASTM A320 L7 Alloy Steel
ASTM A320 L7 Full Threaded Rod / ASTM A320 L7 Alloy Steel
ASTM A320 L7 Full Threaded Rod / ASTM A320 L7 Alloy Steel






 

 

Bolts

LEGALIS.IT, 2023