# O1 Tool Steel Rectangular Bar Bar, Material Tool Steel, Material Grade O1, Thickness 0.16 in, Thickness Tolerance +/-0.001 in, Overall Length 36 in, Overall Width 1 1/2 in, Fabrication Hot Rolled, Heat Treatable Yes, Heat Treatment Oil Hardened, Mechanical Finish Precision Ground, Yield Strength 55,000 psi, Tensile Strength 95,000 psi, Brinell Hardness 177 to 212, Rockwell Hardness C18, Standards AISI O-1, ASTM A681-08, FEDERAL QQT 570 REV C, SAE J437, UNS T31501

**Manufacturer:** Zoro Select  
**MPN:** `O15321126`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Zoro Select |
| Manufacturer name | Zoro Select |
| Manufacturer | Zoro Select |
| CategoryId | 10414 |
| CategoryIdL1 | 37 |
| CategoryIdL2 | 9066 |
| CategoryIdL3 | 10414 |
| CategoryL1 | Raw Materials |
| CategoryL2 | Stainless Steel |
| CategoryL3 | Steel Stock |
| DimensionUnit | inch |
| GTIN | None |
| GraingerSku | 33J232 |
| UPC | None |
| UnitOfMeasure | EA |
| Weight | 2.5 |
| WeightUnit | lbs |
| cali_prop65_message | WARNING: Cancer - www.P65Warnings.ca.gov |
| cali_prop65_orglabel | False |
| cali_prop65_warnmsgscenario | 5 |
| cali_prop65_whtlabel | True |
| countryOfOrigin | DE |
| height | 0.2 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 37.3 |
| moq | 1 |
| MPN | O15321126 |
| multiple | 1 |
| qtyInStock | 1 |
| qtyInStockOverride | Drop Ship |
| SKU | G4522043 |
| tierMinQty1 | 1 |
| tierPrice1 | 43.99 |
| url | https://www.zoro.com/zoro-select-oil-hard-flat-stock-o1-1-12-in-wx36-inl-o15321126/i/G4522043/ |
| width | 2 |
| Length | 36 in |
| Width | 1 1/2 in |
| Length Tolerance | +0.250 in/0.500 in |
| Width Tolerance | +0.005 in/-0.000 in |
| Overall Width | 1 1/2 in |
| Overall Length | 36 in |
| Nominal Size (WxL) | 1 1/2 in x 36 in |
| Item | O1 Tool Steel Rectangular Bar Bar |
| Material | Steel |
| Thickness | 5/32 in |
| Hardness Scale | 177 to 212 BHN |
| Finish | RMS 45 Max |
| Grade | O1 |
| Standards | UNS T31501, SAE J-437, ASTM A-681-07, FEDERAL QQT-570 REV C |
| Thickness Tolerance | +/-0.001 in |
| Product Type | Oil Hard Flat Stock |
| Tolerance Rating | Standard |
| Heat Treatment | Oil Hardened |
| Heat Treatable | Yes |
| Brinell Hardness | 177 to 212 |
| Tensile Strength | 95,000 psi |
| Includes Material Certificate | Yes |
| Shape | Rectangular Bar |
| Material Grade | O1 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G4522043 | 43.99 | 1 | 1 | 1 |

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Structured data: `/python/html6/product/500/116000000/116150000/part_--O15321126---ZoroSelect--a6a8456852.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp