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L'image montre des barres en matériaux ASTM pour la fabrication d'éléments de fixation.
Matériaux ASTM

Spécification et classification des matériaux

Matériaux ASTM

Spécification et classification des matériaux

Matériaux ASTM

ASTM Matériaux en bref

Les matériaux ASTM sont basés sur les spécifications d'ASTM International et définissent des exigences liées aux matériaux, telles que la composition chimique, les propriétés mécaniques et les conditions d'essai. Les normes ASTM sont surtout répandues sur le marché américain, mais elles jouent également un rôle important dans les affaires internationales et les spécifications techniques mondiales. Pour nos clients, nous fabriquons bien entendu des composants et des éléments de fixation conformément aux spécifications ASTM - avec précision, dans le respect des normes et en fonction de l'application concernée.

Source : https://www.astm.org/

Marquages Norme Description Matériau Matériau EN comparable

No Grade Mark
SAE J429
Grade 1


Bolts, Screws, Studs
Low or Medium
Carbon Steel
---
ASTM A307
Grade A & B
Low Carbon Steel ---
SAE J429
Grade 2
Low or Medium
Carbon Steel
---
No Grade Mark SAE J429
Grade 4
Studs Medium Carbon
Cold Drawn Steel
---
B5 ASTM A193
Grade B5
Bolts, Screws, Studs
for high temperature
service
Class 1:
Carbide
solution
treated

AISI 501 ~1.7362
B6 ASTM A193
Grade B6
AISI 410 ~1.4006
B7 ASTM A193
Grade B7
AISI 4140, 4142, 4105 ~1.7225
B16 ASTM A193
Grade B16
CrMoVa
Alloy Steel
~1.7711
B8 ASTM A193
Grade B8
Class 1
AISI 304 ~1.4301
B8C ASTM A193
Grade B8C
Class 2
AISI 347
Strain Hardened
~1.4550
B8M ASTM A193
Grade B8M
Class 2
AISI 316
Strain Hardened
~1.4401
B8T ASTM A193
Grade B8T
Class 2
AISI 321
Strain Hardened
~1.4541
L7 ASTM A320
Grade L7

Bolts, Screws,
Studs
for low temperature
service
Quenched and
tempered
AISI 4140, 4142, 4145 ~1.7225
L7A ASTM A320
Grade L7A
AISI 4037 ---
L7B ASTM A320
Grade L7B
AISI 4137 ~1.7220
L7C ASTM A320
Grade L7C
AISI 8740 ~1.6546
L43 ASTM A320
Grade L43
AISI 4340 ~1.6580
B8 ASTM A320
Grade B8
Class 1

Bolts, Screws,
Studs
for low temperature
service
Class 1:
Carbide
solution
treated

AISI 304 ~1.4301
B8C ASTM A320
Grade B8C
Class 1
AISI 347 ~1.4550
B8T ASTM A320
Grade B8T
Class 1
AISI 321 ~1.4541
B8F ASTM A320
Grade B8F
Class 1
AISI 303 (Se) ~1.4305
B8M ASTM A320
Grade B8M
Class 1
AISI 316 ~1.4401
B8 ASTM A320
Grade B8
Class 2


Bolts, Screws,
Studs
for low temperature
service
Class 2:
Carbide
Solution
treated and strain
hardend

AISI 304 ~1.4301
B8C ASTM A320
Grade B8C
Class 2
AISI 347 ~1.4550
B8T ASTM A320
Grade B8T
Class 2
AISI 321 ~1.4541
B8F ASTM A320
Grade B8F
Class 2
AISI 303 (Se) ~1.4305
B8M ASTM A320
Grade B8M
Class 2
AISI 316 ~1.4401

3 Radial Lines 120°
SAE J429
Grade 5

Bolts, Screws, Studs
Medium Carbon
Steel
Quenched and
Tempered
---
ASTM A449 ---
3 Radial Lines 90°
SAE J429
Grade 5.1
Bolts, Screws, Studs Low Carbon
Martensitic Steel
Quenched and
Tempered
---
A325 ASTM A325
Type 1

High strength
structural bolts
Medium Carbon Steel
Quenched and Tempered
---
--- ASTM A325
Type 2
(Withdrawn)
Low Carbon Martensitic
Steel
Quenched and Tempered

---
A325 ASTM A325
Type 3
Atmospheric Corrosion
Resisting Steel
Quenched and Tempered

---
BD ASTM A354
Grade BD

Bolts, Studs

Alloy Steel
Quenched and Tempered
---
BC ASTM A354
Grade BC
---
5 Radial Lines SAE J429
Grade 7
Bolts, Screws Medium Carbon
Alloy Steel
Quenched and Tempered

---
6 Radial Lines 60° SAE J429
Grade 8
Bolts, Screws, Studs Medium Carbon
Alloy Steel
Quenched and Tempered
---
No Grade Mark SAE J429
Grade 8.1
Studs Medium Carbon
Alloy or SAE 1041 Modified Elevated
Quenched and Tempered
---
A490 ASTM A490 High strength
structural bolts
Alloy Steel
Quenched and Tempered
---