Product Introduction
- ASTM Gr2 Titanium Bar is supplied as commercially pure titanium bar in accordance with ASTM B348/B348M. This page focuses on specification definition, dimensional requirements, inspection scope and acceptance documents rather than a particular application industry.
- Before production, the purchase order should confirm the applicable standard revision, Grade 2 / UNS R50400, diameter, length, supply condition, surface finish, end condition and any additional inspection requirements.
Product Parameter
The table below separates typical supply conditions from details that must be confirmed in the purchase order. Requirements beyond ASTM B348/B348M should be stated before production.
| Item | Typical Supply | Order Confirmation |
| Material Grade | Grade 2 commercially pure titanium | Grade 2 / UNS R50400 |
| Standard | ASTM B348/B348M | Applicable revision stated in the purchase order |
| Diameter Range | Ø8-200 mm | Actual diameter, tolerance and quantity |
| Length | 100-6000 mm | Random, fixed or cut-to-length supply |
| Supply Condition | Annealed | Additional requirements reviewed before production |
| Product Route | Hot worked according to bar diameter | Final route depends on size and finish |
| Surface Finish | Peeled, turned, ground or polished | Required surface stated in the order |
| Tensile Strength | ≥345 MPa | Acceptance follows the applicable specification |
| Yield Strength | ≥275 MPa | Acceptance follows the applicable specification |
| Elongation | ≥20% | Subject to product dimensions and specification |
| End Condition | Plain cut, chamfered or rough machined | Confirmed by drawing or purchase order |
| Inspection | Chemical, mechanical and dimensional inspection | PMI, UT or third-party inspection when specified |
| Documentation | MTC and heat-lot identification | Additional reports agreed before production |
ASTM B348 Ordering Considerations
- Standard and Grade Definition
The order should identify ASTM B348/B348M, the required revision and Grade 2 / UNS R50400. Grade 2H should not be substituted unless its higher minimum tensile requirement is specifically requested.
- Dimensions and Supply Form
Diameter, length, tolerance, surface finish and end condition should be defined separately. Fixed lengths, chamfered ends and rough-machined blanks are additional order details rather than automatic standard requirements.
- Standard and Additional Inspection
Chemical, mechanical and dimensional inspection form the basic acceptance scope. PMI, UT, third-party witnessing or additional reports should include an agreed method and acceptance requirement.
Product Details
- Annealed Supply
Grade 2 bar is normally supplied in annealed condition under ASTM B348/B348M.
- Surface Definition
Peeled, turned, ground or polished surfaces can be selected according to the purchase specification.
- Length and End Condition
Fixed lengths, cut pieces, chamfered ends and rough machining can be reviewed against the order or drawing.
- Dimensional Requirements
Diameter tolerance and straightness should be confirmed according to bar size, length and subsequent processing needs.
- Material Identification
Heat-number identification and the corresponding MTC are maintained for the supplied production batch.
Order Support
Support for Grade 2 Bar Orders
- Purchase Order Check
The grade, standard, revision, dimensions, condition and quantity are checked before production.
- Dimensional Definition
Diameter tolerance, fixed length, surface finish and end condition are confirmed separately.
- Inspection Scope
Standard inspection and additional requirements are distinguished before the order is released.
- Document Check
MTC, heat identification and any supplementary reports are reviewed against the purchase order.
- Repeat Order Reference
Previous specifications can be used as a reference, while changes in revision, size or inspection scope are checked again.
FAQ
Q1: What should be included in an ASTM Grade 2 titanium bar purchase order?
A1: The order should state ASTM B348/B348M, the applicable revision, Grade 2 / UNS R50400, diameter, length, quantity, supply condition, surface finish, end condition and required inspection documents.
Q2: Is Grade 2H the same as standard Grade 2?
A2: No. Both use UNS R50400, but Grade 2H has a higher specified minimum tensile strength. Grade 2H should be ordered only when it is clearly required by the project specification.
Q3: Is ultrasonic testing automatically required by ASTM B348/B348M?
A3: UT should not be assumed for every order. When required, the testing method, coverage, reporting and acceptance criteria should be stated in the purchase order.
Q4: Can fixed lengths and machined ends be included in the order?
A4: Yes. Fixed lengths, chamfered ends and rough-machined conditions can be reviewed, but their dimensions and tolerances should be defined separately from the basic material specification.
Q5: Is third-party inspection possible?
A5: Absolutely. SGS, TPI, or customer-appointed agencies are welcome.
Company profile
Baoji Zhongxinbao Metal Materials Co., Ltd. supplies ASTM Grade 2 titanium bar in annealed condition, with full-length, fixed-length and cut-piece options. Surface finish, end condition and dimensional requirements are reviewed according to the purchase specification.
For ASTM B348/B348M orders, we focus on checking the standard revision, grade, dimensions, inspection scope, heat identification and document requirements before production. This helps keep the supplied material and acceptance records consistent with the purchase order.
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