Attention Engineers: MTR's and Certs of Conformance are always free at OnlineMetals.com

If you'd like to receive Mill Test Reports, just click the check box, in Step 4 of your check out, and we'll send them via e-mail, when your order ships.

What's a Mill Test Report? (AKA: MTR or Material Test Report.)

It's a certificate that the mill gives to distributors like us, that confirms that the metal is what they say it is. They make it, and then test it to make sure it conforms to the following:

• ASTM and ASME standards
• Specific Size, Shape, and/or Diameter specifications
• Chemical specifications.
• Proof of Origin

Certificate of Compliance: (AKA: Certs or C of C's.)

Some metals don't come with MTR's. Copper C110, for example. In that case, Metal Service Centers create their own "Certificate of Compliance" documents to stand behind the product, and confirm it is what they say it is. OLM is happy to provide these. Just give us a call. (800) 704-2157

Do I need MTRS or Certs?

If you're asking this question, then you probably don't. They are generally only required for manufacturing applications, particularly in the aerospace field.

How will I get the MTR's

In order to minimize our costs and keep things as efficient as possible, we email you PDFs of all of your MTRs with your shipment notification.

Which products have what?

Items with MTR's

Certs of Conformance only

Alloy Steel 4130 - ALLOY TUBE ROUND   4130 - ALLOY ROUND BAR 4130 - ALLOY STEEL SHEET ANNEALED 4130 - ALLOY STEEL SHEET NORMALIZED   4140 - CF ANNEALED ROUND ROD   4140/4142 - CF ALLOY STEEL HEX   4330 - ALLOY ROUND BAR VACUUM MELT   4340 - ALLOY ROUND BAR AIR MELT   4340 - ALLOY ROUND BAR VACUUM MELT   8620 - ALLOY STEEL COLD FORGED ROD 8620 - HOT ROLL ALLOY STEEL ROD   Aluminum 5005 ANODIZED ALUMINUM SHEET DARK BRONZE   2011-T3 ROUND BAR 2011-T3 HEX BAR   2024-T351 ROUND BAR 2024-T351 HEX BAR 2024-O CLAD SHEET / PLATE 2024-T3 CLAD SHEET / PLATE 2024-T3 BARE SHEET / PLATE 2024-T3 ROUND TUBE 2024-T351 RECTANGLE FLAT BAR 2024-T351 SQUARE BAR 2024-T4 RECTANGLE FLAT BAR 2024-T851 HEX BAR 2024-T4 ROUND BAR 2024-T851 ROUND BAR   3003 ALUMINUM TREAD BRITE 3003-H14 SHEET / PLATE STANDARD 3003 ALUMINUM EXPANDED SHEET   5052-H32 SHEET / PLATE 5052-H32 SHEET DFARS   5086-H32 SHEET / PLATE   6061-T6 ALUMINUM ANGLE 6061-T6 ROUND TUBE 6061-T6 PIPE, SCHEDULE 40 6061-T6 EXTRUDED PIPE, SCHEDULE 80 6061-T6 SHEET / PLATE 6061-T6511 ROUND BAR, EXTRUDED 6061-T6 ALUMINUM T-BAR AMERICAN STANDARD (AM STD) ALUMINUM 6061-T6 CHANNEL 6061-T4 SHEET / PLATE 6061-O SHEET / PLATE 6061-T6 ALUMINUM ASSOCIATION I-BEAM 6061-T6 AMERICAN STANDARD ALUMINUM I-BEAM 6061-T6511 RECTANGLE FLAT BAR 6061-T6511 SQUARE BAR 6061-T6 STRUCTURAL (AL ASSOC) ALUMINUM CHANNEL 6061-T6 RECTANGLE TUBE 6061-T6 SQUARE TUBE 6061-T6511 HEX BAR, EXTRUDED 6061-T651 ROUND BAR, COLD FINISH 6061 SQUARE TUBE, RADIUS CORNER 6061-T6 RECTANGLE TUBE, RADIUS CORNER   6063-T52 ALUMINUM ANGLE 6063-T52 ROUND TUBE 6063-T52 ARCHITECTURAL CHANNEL 6063-T52 ALUMINUM T-BAR 6063 STRUCTURAL PIPE, SCHEDULE 40 6063-T52 RECTANGLE TUBE 6063-T52 SQUARE TUBE 6063-T52 ROUND BAR, EXTRUDED 6063-T52 RECTANGLE FLAT BAR, EXTRUDED 6063 SQUARE TUBE, RADIUS CORNER   6101-T61 EXTRUDED PIPE, SCHEDULE 40 6101-T61 EXTRUDED PIPE, SCHEDULE 80 6101-T61 RECTANGLE FLAT BAR, FULL ROUND EDGE 6101-T65 RECTANGLE FLAT BAR, FULL ROUND EDGE   6262-T6511 HEX BAR, EXTRUDED 6262-T6511 ROUND BAR, EXTRUDED   7075-T651 ROUND BAR 7075-T6/T651 RECTANGLE FLAT BAR, COLD FINISH 7075-T6 BARE SHEET / PLATE 7075-T651 SQUARE BAR 7075-T6 CLAD SHEET / PLATE 7075-T73 SHEET / PLATE 7075-O BARE SHEET / PLATE 7075-T7351 HEX BAR 7075 O CLAD SHEET / PLATE   5005 ANODIZED ALUMINUM SHEET DARK BRONZE 5005 ANODIZED ALUMINUM SHEET BLACK 5005 ANODIZED ALUMINUM SHEET CLEAR   6060 RECTANGLE FLAT BAR - METRIC 6060 ROUND TUBE - METRIC   MIC-6 ® CAST SHEET / PLATE   Beryllium Copper MOLDMAX HH BERYLLIUM COPPER ROUND BAR   Brass BRASS TUBE - ROUND   BRASS TUBE - ROUND C260 CARTRIDGE BRASS SHEET/PLATE --SOFT TEMPER   BRASS TUBE - SQUARE BRASS TUBE - RECTANGLE C272   C280 MUNTZ METAL BRASS SHEET   C314 ROUND BAR   BRASS TUBE - ROUND   C353 ENGRAVERS SHEET / PLATE   BRASS BAR - HEX BRASS BAR - HALF ROUND BRASS HALF OVAL ROD C360 C360 FREE MACHINING ROUND BAR C360 LEADED RECTANGLE FLAT BAR C360 SQUARE BAR   BRASS ANGLE C385 ARCHITECTURAL RECTANGLE FLAT BAR C385 ROUND BAR BRASS TUBE - RECTANGLE C385 C385 SQUARE BAR BRASS CHANNEL C385 BRASS T-BAR   C464 NAVAL ROUND BAR C464 NAVAL BRASS SHEET / PLATE   C485 LEADED NAVAL ROUND BAR   BRASS TUBE - ROUND BRASS TUBE - SQUARE BRASS TUBE - RECTANGLE C272   Bronze C220 COMMERCIAL BRONZE SHEET   C510 PHOS BRONZE SHEET C510 PHOS BRONZE ROD   C544 PHOS BRONZE ROD   C630 NICKEL ALUMINUM BRONZE ROD   C642 SILICON ALUMINUM BRONZE ROD   C655 SILICON BRONZE PLATE C655 SILICON BRONZE ROD   C673 MANGANESE BRONZE ROUND ROD   BEARING BRONZE ROUND ROD (CDA 932-SAE 660)   C954 ALUMINUM BRONZE SQUARE   COLD ROLL 1018 - FLAT BAR COLD FINISH   1018 - SQUARE BAR COLD FINISH 1018 HEX BAR   1045 - ROUND BAR COLD FINISH   12L14 - COLD ROLL STEEL HEX ROD   Copper C101 ROUND BAR, OXYGEN FREE   C101 SHEET / PLATE, OXYGEN FREE C101 SQUARE BAR, OXYGEN FREE C101 ROUND TUBE   COPPER FOIL C110 RECTANGLE FLAT BAR C110 SHEET / PLATE, 1/8-1/4 HARD (ETP) C110 ROUND BAR (ETP) C110 SQUARE BAR (ETP) C110 H02 SHEET / PLATE, HALF HARD (ETP) C110 SHEET / PLATE, O TEMPER (ETP) C110 SILVER FLASH FULL ROUND EDGE COPPER FLAT BAR C110 TIN PLATED FULL ROUND EDGE COPPER FLAT BAR   C122 ROUND TUBE   C145 TELLURIUM ROUND BAR   C172 BERYLLIUM ROUND BAR   C173 BERYLLIUM COPPER ROUND BAR   C182 CHROMIUM-COPPER ROUND BAR C182 CHROMIUM-COPPER RECTANGLE BAR C182 CHROMIUM-COPPER SQUARE BAR C182 (CLASS 2) CHROMIUM-COPPER HEX ROD   ASTM B370 ROOFING SHEET / PLATE   Hot Roll MILD STEEL EXPANDED STANDARD A36   SCHEDULE 40 CARBON HOT ROLL STEEL PIPE A500 GR B   A606/A588A HOT ROLL WEATHERING (COR-TEN EQUIV) STEEL SHEET/PLATE   A653 - GALVANIZED STEEL SHEET   Maraging Steel 18NI (ALLOY 250) MARAGING STEEL ROUND   18NI (ALLOY 300) MARAGING STEEL ROUND   18NI (ALLOY 350) MARAGING STEEL ROUND   Mild Steel 1008-1035 THREADED PLAIN COARSE   1008-1035 THREADED PLAIN FINE 1008-1035 THREADED ZINC COARSE 1008-1035 THREADED HOT DIPPED GALV COARSE   1018 - ROUND BAR COLD FINISH 1018 - FLAT BAR COLD FINISH 1018 - SQUARE BAR COLD FINISH 1018 - CARBON STEEL RECTANGLE TUBE METRIC 1018 - FLAT BAR METRIC 1018 - CARBON STEEL TUBE ROUND METRIC 1018 STEEL SQUARE TUBE--METRIC   11L17 - COLD FINISH RECTANGLE BAR   A500/A513 - HOT ROLL TUBE - RECTANGLE A36 - HOT ROLL ANGLE HOT ROLL FLAT BAR A36 - HOT ROLL ROUND BAR A36 - HOT ROLL SQUARE BAR A500/A513 - HOT ROLL TUBE - SQUARE   A-366/1008 COLD ROLL SHEET   A500/A513 - HOT ROLL TUBE - RECTANGLE A500/A513 - HOT ROLL TUBE - SQUARE   A500/A513 - HOT ROLL TUBE - RECTANGLE   A500/A513 - HOT ROLL TUBE - RECTANGLE A513 - TYPE 5 STEEL TUBE DOM A500/A513 - HOT ROLL TUBE - SQUARE   HOT ROLL SHEET / PLATE   B7 THREADED ZINC YELLOW COARSE B7 THREADED HOT DIPPED GALV COURSE   11L17 - COLD FINISH RECTANGLE BAR   HOT ROLL STEEL TREAD FLOOR PLATE (DIAMOND PLATE)   Nickel 200 ROUND BAR   200 SHEET / PLATE   400 SHEET / PLATE 400 ROUND BAR   500 ROUND BAR   INCONEL 600 ROUND BAR INCONEL 600 SHEET / PLATE   INCONEL 625 SHEET / PLATE   INCONEL 718 SHEET / PLATE INCONEL 718 ROUND BAR   A286 SHEET / PLATE   C276 ROUND BAR C276 SHEET / PLATE   K500 ROUND BAR   R405 ROUND BAR   Nickel Silver NICKEL SILVER SHEET / PLATE   NICKEL SILVER ROD - ROUND   Plastic 2447 EXTRUDED SHEET, LIGHTING WHITE   HDPE SHEET BLACK   Stainless 13-8 ROUND BAR   15-5 ROUND BAR, ANNEALED (VAR) 15-5 STAINLESS SHEET 15-5 HEX BAR   17-4 ROUND BAR, COLD FINISH 17-4 ROUND BAR, ROUGH TURNED 17-4 STAINLESS SHEET 17-4 RECTANGLE FLAT BAR 17-4 SQUARE BAR   17-7 STAINLESS SHEET   301 STAINLESS SHEET, FULL HARD 301 STAINLESS SHEET, 1/4 HARD 301 STAINLESS SHEET, 1/2 HARD 301 STAINLESS SHEET, ANNEALED   302 STAINLESS SHEET   303 ROUND BAR 303 HEX BAR 303 RECTANGLE FLAT BAR, COLD DRAWN 303 SQUARE BAR 303 RECTANGLE FLAT BAR, HOT ROLLED   304/304L STAINLESS ANGLE 304/304L ROUND BAR 304/304L HEX BAR 304/304L SQUARE BAR WELDED 304/304L ROUND TUBE 304 SQUARE TUBE 304/304L RECTANGLE FLAT BAR STAINLESS CHANNEL 304 SHEET / PLATE, #4 FINISH SCHEDULE 5 STAINLESS STEEL PIPE T-304/304L SCHEDULE 10 STAINLESS STEEL PIPE T-304/304L SCHEDULE 40 STAINLESS STEEL PIPE T-304/304L SCHEDULE 80 STAINLESS STEEL PIPE T-304/304L 304 SHEET / PLATE, 2B FINISH (HRAP) 304 RECTANGLE TUBE SEAMLESS 304/304L ROUND TUBE 304 SHEET / PLATE, #8 MIRROR FINISH STANDARD 304 EXPANDED SHEET 304 STAINLESS THREADED COARSE STAINLESS BAR - HALF ROUND 304L ROUND BAR - DOMESTIC STAINLESS T-BAR   310 STAINLESS SHEET   316/316L STAINLESS ANGLE 316/316L ROUND BAR 316/316L HEX BAR 316/316L SQUARE BAR WELDED 316/316L ROUND TUBE 316/316L SQUARE TUBE 316/316L RECTANGLE FLAT BAR SCHEDULE 40 STAINLESS STEEL PIPE T-316/316L SCHEDULE 80 STAINLESS STEEL PIPE T-316/316L 316/316L SHEET / PLATE SCHEDULE 10 STAINLESS STEEL PIPE T-316/316L SEAMLESS 316/316L ROUND TUBE 316 RECTANGLE TUBE   321 ROUND BAR 321 STAINLESS SHEET 321 HEX BAR   347 STAINLESS SHEET 347 ROUND BAR 347 HEX BAR   410 STAINLESS SHEET 410 ROUND BAR   416 ROUND BAR   430 STAINLESS SHEET   440C ROUND BAR   455 ROUND BAR   N50 ROUND BAR   N60 ROUND BAR   Titanium 6AL-4V ROUND BAR   6AL-4V ROUND BAR (ELI)   CP ROUND BAR, GRADE 2 TITANIUM SHEET / PLATE WELDED ROUND TUBE, GRADE 2 SEAMLESS ROUND TUBE, GRADE 2

Alloy Steel 4130 - ALLOY STEEL SHEET NORMALIZED   ALLOY STEEL PREHARD 4142 RECTANGLE BAR ALLOY STEEL PREHARD 4142 SQUARE BAR   9310 - ALLOY ROUND BAR VACUUM MELT   Aluminum ALUMINUM FOIL   TAPE   FLATTENED 3003 ALUMINUM EXPANDED SHEET   5052-H32 SHEET / PLATE   6061-T6 ALUMINUM T-BAR 6061-T6511 HEX BAR, EXTRUDED 6061 ALUMINUM TREAD PLATE   6063-T52 ALUMINUM ANGLE 6063-T52 ARCHITECTURAL CHANNEL 6063-T52 ALUMINUM T-BAR 6063 RECTANGLE FLAT BAR, ANODIZED 6063 ANODIZED SQUARE TUBE 6063 ANODIZED ROUND TUBE 6063 ALUMINUM ANGLE, ANODIZED 6063 ANODIZED ROUND TUBE, BRIGHT DIPPED   Brass BRASS TUBE - ROUND   BRASS TUBE - ROUND   BRASS PIPE   C260 CARTRIDGE SHEET / PLATE BRASS FOIL   BRASS TUBE - SQUARE   BRASS TUBE - ROUND   C360 FREE MACHINING ROUND BAR C360 LEADED RECTANGLE FLAT BAR   BRASS ANGLE C385 ARCHITECTURAL RECTANGLE FLAT BAR C385 ROUND BAR   BRASS TUBE - ROUND   Bronze C220 COMMERCIAL BRONZE SHEET   C510 PHOS BRONZE SHEET   C642 SILICON ALUMINUM BRONZE ROD   C863 MANGANESE BRONZE HOLLOWBAR C863 MANGANESE BRONZE ROUND   BEARING BRONZE HOLLOWBAR (CDA 932-SAE 660) BEARING BRONZE ROUND ROD (CDA 932-SAE 660)   C954 ALUMINUM BRONZE HOLLOWBAR C954 ALUMINUM BRONZE ROD C954 ALUMINUM BRONZE RECTANGLE C954 ALUMINUM BRONZE SQUARE   SAE 841 POWDERED BRONZE HOLLOWBAR SAE 841 POWDERED BRONZE PLATE SAE 841 POWDERED BRONZE ROUND   SAE 863 POWDERED IRON-COPPER HOLLOWBAR SAE 863 POWDERED IRON-COPPER ROUND   Carbon 1144 - COLD DRAWN STRESSPROOF ROD   12L14 - COLD DRAWN ROUND ROD   Carbon Fiber CARBON FIBER ROUND ROD   CARBON FIBER RECTANGLE BAR CARBON FIBER TUBE CARBON FIBER SHEET/PLATE   COLD ROLL 1018 HEX BAR   Copper COPPER BAR - RECTANGLE   COPPER FOIL C110 ROUND BAR (ETP) C110 SQUARE BAR (ETP) COPPER FOIL   C172 BERYLLIUM ROUND BAR   Hot Roll MILD STEEL EXPANDED FLATTENED A36   Mild Steel 1008-1035 THREADED PLAIN COARSE   HOT ROLL SHEET / PLATE   A-366/1008 COLD ROLL SHEET   Nickel NICKEL FOIL   Nickel Silver NICKEL SILVER SHEET / PLATE   NICKEL SILVER ROD - ROUND   Plastic BLACK ABS SHEET / PLATE   WHITE ABS SHEET / PLATE   DELRIN® HOMOPOLYMER SHEET / PLATE, BLACK DELRIN® HOMOPOLYMER SHEET / PLATE, NATURAL DELRIN® HOMOPOLYMER ROUND BAR, BLACK DELRIN® HOMOPOLYMER ROUND BAR, NATURAL COPOLYMER ROUND BAR, NATURAL   COPOLYMER PLATE, NATURAL COPOLYMER PLATE, BLACK COPOLYMER ROUND BAR, NATURAL COPOLYMER ROUND BAR, BLACK   PTFE FIBER FILLED AF BLEND PLATE PTFE FIBER FILLED AF100 ROUND BAR   PTFE POWDER FILLED LF13 PLATE PTFE POWDER FILLED LF13 ROUND BAR   ACRYLIC EXTRUDED SHEET - CLEAR 2447 EXTRUDED SHEET, LIGHTING WHITE 7328 EXTRUDED SHEET, SIGN WHITE 3015 EXTRUDED SHEET, OPAQUE WHITE EXTRUDED SHEET, BLACK ACRYLIC CAST SHEET -- CLEAR MIRROR SHEET P99 EXTRUDED SHEET, NON-GLARE EXTRUDED SHEET, TRANSPARENT BRONZE 2064 CAST SHEET, GRAY ACRYLIC ROUND ROD P-95 CAST SHEET   COPOLYMER PLATE, NATURAL   GPO-3 RED LAMINATE SHEET   HDPE SHEET NATURAL HDPE SHEET BLACK HDPE MARINE BOARD -- WHITE HDPE MARINE BOARD -- BLACK HDPE MARINE BOARD ---SEAFOAM   KYDEX® T SHEET -- POLAR WHITE KYDEX® T SHEET -- CALCUTTA BLACK   NATURAL NYLON 101 CAST AND EXTRUDED PA66 SHEET / PLATE NYLATRON GS (EXTRUDED) NYLON PA66 SHEET/PLATE NYLATRON GSM (CAST) NYLON PA6 SHEET/PLATE NYLON 101 PA66 (EXTRUDED) ROUND NYLATRON GS (EXTRUDED) NYLON ROUND ROD NYLATRON GSM (CAST) NYLON ROUND ROD   POLYETHYLENE TEREPHTHALATE (PET) SHEET / PLATE - NATURAL POLYETHYLENE TEREPHTHALATE (PET) SHEET / PLATE - BLACK   POLYCARBONATE SHEET - CLEAR POLYCARBONATE MACHINE GRADE ROUND POLYCARBONATE MACHINE GRADE PLATE POLYCARBONATE AR2 MAKROLON SHEET   BLACK POLYETHERETHERKETONE (PEEK) ROUND ROD NATURAL POLYETHERETHERKETONE (PEEK) ROUND ROD NATURAL POLYETHERETHERKETONE (PEEK) SHEET   HOMOPOLYMER POLYPROPYLENE SHEET / PLATE - NATURAL POLYPROPYLENE ROUND ROD COPOLYMER POLYPROPYLENE SHEET / PLATE - NATURAL COPOLYMER POLYPROPYLENE SHEET / PLATE - BLACK   PTFE ROUND ROD --VIRGIN TEFLON ® PTFE SHEET/PLATE --VIRGIN TEFLON ®   PVC SHEET / PLATE TYPE 1   TORLON 4203 NATURAL ROUND ROD TORLON 4203 NATURAL SHEET / PLATE   TORLON 4301 NATURAL ROUND ROD TORLON 4301 NATURAL SHEET / PLATE   UHMW SHEET/PLATE - NATURAL (VIRGIN) UHMW SHEET/PLATE - BLACK (REPROCESSED) UHMW NATURAL ROUND ROD UHMW BLACK ROUND ROD   ULTEM 1000 AMBER ROUND ROD ULTEM 1000 BLACK ROUND ROD ULTEM 1000 AMBER SHEET ULTEM 1000 BLACK SHEET   ULTEM 2300 AMBER ROUND ROD ULTEM 2300 AMBER SHEET   Stainless 17-4 RECTANGLE FLAT BAR   WELDED 304/304L ROUND TUBE STAINLESS CHANNEL 304 SHEET / PLATE, #8 MIRROR FINISH FLATTENED 304 EXPANDED SHEET RIGI-GRIP 304 ROUND TUBE - TEXTURED DIAMOND PATTERN TAPE 304 STAINLESS FOIL   316 STAINLESS FOIL   410 RECTANGLE FLAT BAR 410 SQUARE BAR   420 RECTANGLE FLAT BAR (OVERSIZE) 420 SQUARE BAR (OVERSIZE)   440C RECTANGLE FLAT BAR (OVERSIZE) 440C SQUARE BAR (OVERSIZE)   Tool Steel 1018 LOW CARBON FLAT STOCK   1018 LOW CARBON SQUARE STOCK   A-2 DRILL ROD A-2 FLAT STOCK, PRECISION GROUND A-2 FLAT STOCK (OVERSIZE) A-2 SQUARE STOCK A-2 SQUARE STOCK (OVERSIZE)   D-2 FLAT STOCK, PRECISION GROUND D-2 DRILL ROD D-2 FLAT STOCK (OVERSIZE) D-2 SQUARE STOCK (OVERSIZE) D-2 SQUARE STOCK   H-13 DRILL ROD H-13 FLAT STOCK (OVERSIZE) H-13 SQUARE STOCK (OVERSIZE)   M-2 DRILL ROD   O-1 DRILL ROD O-1 FLAT STOCK, PRECISION GROUND O-1 FLAT STOCK (OVERSIZE) O-1 SQUARE STOCK (OVERSIZE) O-1 SQUARE STOCK   S-7 DRILL ROD S-7 FLAT STOCK (OVERSIZE)   W-1 DRILL ROD W-1 FLAT STOCK W-1 SQUARE STOCK   Zinc ZINC SHEET