6.1.1
The fabricator shall be able to demonstrate by written procedure and actual practice a method of material identification, visible up to the point of assembling members as follows:
- (a) For shop-standard material, identification capability shall include shape designation. Representative material test reports shall be furnished by the fabricator if requested to do so by the owner's designated representative for design (ODRD), either in the contract documents or in separate written instructions given to the fabricator prior to ordering mill materials.
- (b) For material of grade other than shop-standard material, identification capability shall include shape designation and material grade. Representative material test reports shall be furnished by the fabricator if requested to do so by the ODRD, either in the contract documents or in separate written instructions given to the fabricator prior to ordering mill materials.
- (c) For material ordered in accordance with an ASTM supplement or other special material requirements in the contract documents, identification capability shall include shape designation, material grade, and heat number. The corresponding material test reports shall be furnished by the fabricator if requested to do so by the ODRD, either in the contract documents or in separate written instructions given to the fabricator prior to ordering mill materials.
Unless an alternative system is established in the fabricator's written procedures, shop-standard material shall be as follows:
| Material | Shop-Standard Material Grade |
|---|---|
| W and WT | ASTM A992/A992M |
| M, S, MT, and ST | ASTM A572/A572M Grade 50 |
| HP | ASTM A572/A572M Grade 50 |
| L | ASTM A572/A572M Grade 50 |
| C and MC | ASTM A992/A992M |
| HSS | ASTM A500/A500M Grade C |
| Steel Pipe | ASTM A53/A53M Grade B |
| Plates and Bars | ASTM A572/A572M Grade 50 |
Commentary
The requirements in Section 6.1.1(a) will suffice for most projects. When material is of a strength level that differs from the shop-standard grade, the requirements in Section 6.1.1(b) apply. When special material requirements apply, such as ASTM A6/A6M Supplement S5 or S30 for Charpy V-notch impact testing or ASTM A6/A6M Supplement S8 for ultrasonic testing, the requirements in Section 6.1.1(c) are applicable.
6.1.2
During fabrication, up to the point of assembling members, each piece of material that is ordered to special material requirements shall carry a fabricator's identification mark or an original supplier's identification mark. The fabricator's identification mark shall be in accordance with the fabricator's established material identification system, which shall be on record and available prior to the start of fabrication for the information of the owner's designated representative for construction (ODRC), the building code authority, and the inspector.
6.1.3
Members that are made of material that is ordered to special material requirements shall not be given the same assembling or erection mark as members made of other material, even if they are of identical dimensions and detail.