| Standard | ASTMA106 GRB /API5LGRB/ASTMA53GRB |
| Material | GRB 20# STEEL |
| OD | 1/4"-24",13mm-610mm |
| WT | SCH20,SCH40,SCH60,SCH80,SCH100,SCH120,SCH160,XXS |
| Usage | Boiler Use,water transport,Building,Machinery,Traffic,Aviation,Oil development ect. |
| OD Tollerance | D<48.3mm,+-0.4mm/-0.79mm ,D48.3-114.3mm,+-0.79%,D>114.3mm ±1.59/-0.79mm |
| WT Tollerance | WT +-12.5% |
| Chemical | C:<0.30%,Si:> 0.10%,MN:0.29-1.06%,P:<0.035%,S:<0.035%,Cu:<0.40%,Ni<0.40%,Cr:<0.40%,Mo:0.15%,V:0.08% |
| Tensile strength | 415MPA |
| Yield Point | 240MPA |
| Elong-Ation | 30 |
| other test | HY,ET |
| Length | 2-12m Random,5.8M FIXED,6M FIXED,9M FIXED |
| Suface | Black paint as rusty protect |
| Ends | 2"below plain ends,2" above beveled ends |
| Methord | 140mm below cold drawn,140mm above hot rolled,273mm above hot expand |
| Packing | 6 steel strip,bundles,Caps , plastic wrap,loading belt |
| Min Order | Large quantity will win lower price |