Improves your production economy
Sanmac® is the result of extensive efforts to improve the machinability of stainless steel grades and the design of tooling concepts suitable for stainless steel machining. The result of this cooperation between Sandvik Materials Technology and Sandvik Coromant is improved production economy for you as our customer.
Higher productivity
The family of Sanmac stainless steels has now been further improved through extensive product development to increase productivity for customers in the machining industry. With Sanmac we have been able to reduce tool wear, and increase cutting speeds, giving productivity improvements and therefore significant cost reductions per produced article. The Sanmac program is continuously being extended with new steel grades and dimensions.
Sanmac highlights
- Machinability-improved stainless steel
- Controlled chip breaking
- Increased cutting speed
- Longer tool life
- Consistent quality

Machinability
Improved Machinability Stainless Steel Bar for cost-efficient component manufacturing
Sandvik has taken the alloy a significant step forward by improving its machining properties.This is achieved through the addition of sulphur and by optimized inclusion morphology. As every member of the Sanmac family, Sanmac 316/316L is optimized for controlled chip breaking as well as secure and efficient machining, allowing for increased cutting speed, longer tool life and minimal operator engagement.

Improves your production economy
Sanmac® is the result of extensive efforts to improve the machinability of stainless steel grades and the design of tooling concepts suitable for stainless steel machining.The result of this cooperation between Sandvik Materials Technology and Sandvik Coromant is improved production economy for you as our customer.
Higher productivity
The family of Sanmac stainless steels has now been further improved through extensive product development to increase productivity for customers in the machining industry. With Sanmac we have been able to reduce tool wear, and increase cutting speeds, giving productivity improvements and therefore significant cost reductions per produced article.The Sanmac program is continuously being extended with new steel grades and dimensions.

Sanmac stainless hollow bar properties
Stainless hollow bar – stock grades
Sandvik | AISI (UNS) | W.-Nr./EN |
---|---|---|
Sanmac 4305 | 303 | 1.4305 |
Sanmac 4305 | 303 | 1.4305 |
Sanmac 304/304L | 304/304L | 1.4301/1.4307 |
Sanmac 316/316L | 316/316L | 1.4401/1.4404 |
Sanmac 4435 | 316/316L | 1.4436/1.4435 |
Sanmac 4571 | (316Ti) | 1.4571 |
Sanmac SAF 2205 | S31803 | 1.4462 |
All above grades, excluding Sanmac 4305, fulfill the requirements of PED 97/23/EC (EN 10216-5) leak tightness test deferred to machined component.
Chemical composition
Sandvik | Nominal chemical composition, % | ||||
---|---|---|---|---|---|
C | Cr | Ni | Mo | Others | |
Sanmac 4305 | ≤0.035 | 17.5 | 9 | – | S |
Sanmac 304/304L | ≤0.030 | 18.5 | 9 | – | – |
Sanmac 316/316L | ≤0.030 | 16.5 | 11 | 2.1 | – |
Sanmac 4435 | ≤0.030 | 17.5 | 12.5 | 2.6 | – |
Sanmac 4571 | 0.03 | 17 | 12.5 | 2.1 | Ti |
Sanmac SAF 2205 | ≤0.030 | 21.5 | 4.5 | 3.2 | N |
Other grades to special order.
Tolerances
O.D.: | +2/-0% but minimum +1/-0 mm. |
I.D.: | +0/-2% but minimum +0/-1 mm. |
Straightness: | Straightness deviation max. 1.5 mm per 1000 mm. |
Other tolerances can be offered to special order.
Lengths
Sandvik stainless hollow bar is delivered in lengths ranging from 2.5 to 6.5 m,
depending on diameter and grade. Lengths down to 1 m may be included in the
delivery. Cutting services are available.
Guaranteed component sizes
The values indicated are valid for lengths of max. 2.5 x O.D.
Standards: Test certification for hollow bar in stock
Sanmac 304/304L, EN 1.4301/1.4307 Sanmac 316/316L, EN 1.4401/1.4404 OD 32-250 mm
DIN 174561), DIN 17458 TC11), NFA 49-317, PED 97/23/EC, EN 10216-5 TC1, EN 10294-22) IC-test EN ISO 3651-2A in delivery condition. NACE MR-0175/ISO 15156 |
OD 275 mm and larger
ASTM A479, ASTM A276, ASME SA479 EN 10088-3, EN 10294-22) NACE MR 0175/ISO 15156 IC-test ASTM A262 Pr. E |
Sanmac 4571, EN 1.4571
DIN 174561), DIN 17458 TC11), NFA 49-317, PED 97/23/EC, EN 10216-5 TC1, EN 10294-22) IC-test EN ISO 3651-2A in delivery condition. |
Sanmac SAF 2205, EN 1.4462
Heat analysis and mechanical properties acc. to Sandvik data sheet. Impact test (t ≥6 mm) Micrographic test (400X) NACE MR 0175/ISO 15156 |
IC = Intergranular Corrosion.
1) The leakage test is deferred to the finished component.
2) The European standard for hollow bar expected to be implemented during 2010
Sanmac stainless bar steel properties
Stainless bar steel
Sandvik | EN | W.-Nr. | UNS | AISI |
---|---|---|---|---|
Sanmac 304/304L | 1.4301/1.4307 | 1.4301 | S30400/S30403 | Type 304/304L |
Sanmac 316/316L | 1.4401/1.4404 | 1.4401/1.4404 | S31600/S31603 | Type 316/316L |
Sanmac 4435 | 1.4435 | 1.4436/1.4435 | S31600/S31603 | Type 316/316L |
Sanmac 4571 | 1.4571 | 1.4571 | S31635 | Type 316Ti |
Sanmac SAF 2205 | 1.4462 | 1.4462 | S31803/S32205 | – |
Sandvik SAF 2507 | 1.4410 | – | S32750 | – |
Sandvik Sanicro 28 | 1.4563 | 1.4563 | N08028 | – |
All bar grades fulfill the requirements of PED 97/23/EC.
Chemical composition
Sandvik | Nominal chemical composition, % | ||||
---|---|---|---|---|---|
C | Cr | Ni | Mo | Others | |
Sanmac 304/304L | ≤0.030 | 18.5 | 8.5 | – | – |
Sanmac 316/316L | ≤0.030 | 17 | 10.5 | 2.1 | – |
Sanmac 4435 | ≤0.030 | 17.5 | 12.5 | 2.6 | – |
Sanmac 4571 | 0.03 | 17 | 11 | 2.1 | Ti |
Sanmac SAF 2205 | ≤0.030 | 22.5 | 5.5 | 3.2 | N |
Sandvik SAF 2507 | ≤0.030 | 25 | 7 | 4 | N |
Sandvik Sanicro 28 | ≤0.020 | 27 | 31 | 3.5 | Cu |
Lenghts
Diameter, mm | Lenghts, mm |
---|---|
20 – 70 | 3.5 – 4.5 |
75 – 160 | 5 – 7 |
163 – 250 | 5 – 6 |
254 – 450 | 3 – 5 |
Standards
Sandvik | Size Range |
---|---|
Sanmac: 304/304L, 316/316L, SAF 2205 | |
EN 10 088-3 | 20 – 450 |
EN 10272 | 20 – 25* |
ASTM A479 | SA 479 20 – 450 |
NACE MR 0175 | independent of size |
Sanmac: 304/304L, 316/316L, 4435, 4571 | |
EN 10 088-3 | 75 – 450 |
EN 10272 | 75 – 250 |
AD2000-W2 | 75 – 250** |
ASTM A479 | SA 479 75 – 450 |
NACE MR 0175 | independent of size |
Sandvik Sanicro 28 | |
EN 10 088-3 | 100 – 185 |
EN 10272 | 100 – 185 |
NACE MR 0175 | independent of size |
Sandvik SAF 2507 | |
EN 10 088-3 | 20 – 250 |
EN 10272 | 20 – 160 |
ASTM A 479, SA 479 | 20 – 250 |
NACE MR 0175 | independent of size |
* Sandvik SAF 2205 20 – 160 mm
** Sizes >250 mm must be upgraded via TÜV.